Bump Version Number to 0.1.0

.gitignore

@@ -1,5 +1,5 @@
-Elwig/obj/
-Elwig/bin/
-Elwig/*.csproj.user
+obj/
+bin/
+*.user
 .vs
 .idea

Elwig.sln

@@ -1,20 +1,91 @@
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32929.385
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Elwig", "Elwig\Elwig.csproj", "{00868460-16F6-4B48-AA9B-998F6263693B}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tests", "Tests\Tests.csproj", "{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}"
+EndProject
+Project("{B7DD6F7E-DEF8-4E67-B5B7-07EF123DB6F0}") = "Installer", "Installer\Installer.wixproj", "{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}"
+EndProject
+Project("{B7DD6F7E-DEF8-4E67-B5B7-07EF123DB6F0}") = "Setup", "Setup\Setup.wixproj", "{952E309C-2090-4978-8996-65900D8E8FA4}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|ARM64 = Debug|ARM64
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
+		Release|ARM64 = Release|ARM64
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|ARM64.ActiveCfg = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|ARM64.Build.0 = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|x64.Build.0 = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Debug|x86.Build.0 = Debug|Any CPU
 		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|ARM64.ActiveCfg = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|ARM64.Build.0 = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|x64.ActiveCfg = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|x64.Build.0 = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|x86.ActiveCfg = Release|Any CPU
+		{00868460-16F6-4B48-AA9B-998F6263693B}.Release|x86.Build.0 = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|ARM64.ActiveCfg = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|ARM64.Build.0 = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|x64.Build.0 = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Debug|x86.Build.0 = Debug|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|ARM64.ActiveCfg = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|ARM64.Build.0 = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|x64.ActiveCfg = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|x64.Build.0 = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|x86.ActiveCfg = Release|Any CPU
+		{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}.Release|x86.Build.0 = Release|Any CPU
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|Any CPU.Build.0 = Debug|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|ARM64.Build.0 = Debug|ARM64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|x64.ActiveCfg = Debug|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|x64.Build.0 = Debug|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|x86.ActiveCfg = Debug|x86
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Debug|x86.Build.0 = Debug|x86
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|Any CPU.ActiveCfg = Release|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|Any CPU.Build.0 = Release|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|ARM64.ActiveCfg = Release|ARM64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|ARM64.Build.0 = Release|ARM64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|x64.ActiveCfg = Release|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|x64.Build.0 = Release|x64
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|x86.ActiveCfg = Release|x86
+		{4A82C9C0-EB6D-409C-B0B2-09A5F727D16F}.Release|x86.Build.0 = Release|x86
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|Any CPU.Build.0 = Debug|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|x64.ActiveCfg = Debug|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|x64.Build.0 = Debug|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|x86.ActiveCfg = Debug|x86
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Debug|x86.Build.0 = Debug|x86
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|Any CPU.ActiveCfg = Release|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|Any CPU.Build.0 = Release|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|ARM64.Build.0 = Release|ARM64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|x64.ActiveCfg = Release|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|x64.Build.0 = Release|x64
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|x86.ActiveCfg = Release|x86
+		{952E309C-2090-4978-8996-65900D8E8FA4}.Release|x86.Build.0 = Release|x86
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Elwig/App.xaml

@@ -1,33 +1,106 @@
-<Application x:Class="Elwig.App"
+<Application x:Class="Elwig.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:Elwig"
+             xmlns:controls="clr-namespace:Elwig.Controls"
              StartupUri="Windows\MainWindow.xaml"
              xmlns:ui="http://schemas.modernwpf.com/2019">
     <Application.Resources>
-        <!--<ResourceDictionary>
-            <ResourceDictionary.MergedDictionaries>
-                <ui:ThemeResources />
-                <ui:XamlControlsResources />
-            </ResourceDictionary.MergedDictionaries>
-        </ResourceDictionary>-->
-        <DataTemplate x:Key="PostalDestComboBoxTemplate">
+        <controls:BoolToStringConverter x:Key="BoolToStarConverter" FalseValue="" TrueValue="*"/>
+
+        <DataTemplate x:Key="PostalDestTemplate">
             <StackPanel Orientation="Horizontal">
                 <TextBlock Text="{Binding Dest}"/>
-                <TextBlock Text=" ("/>
-                <TextBlock Text="{Binding Ort.Name}"/>
-                <TextBlock Text=")"/>
+                <TextBlock Text="{Binding Ort.Name, StringFormat='{} ({0})'}"/>
             </StackPanel>
         </DataTemplate>
-        <DataTemplate x:Key="BranchTemplate">
+        <DataTemplate x:Key="KgNrTemplate">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding Name}"/>
+                <TextBlock Text="{Binding KgNr, StringFormat='{} ({0:00000})'}"/>
+            </StackPanel>
+        </DataTemplate>
+        <DataTemplate x:Key="MemberAdminNameTemplate">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding MgNr}" MinWidth="48" Margin="0,0,10,0" TextAlignment="Right"/>
+                <TextBlock Text="{Binding AdministrativeName1}" MinWidth="100" Margin="0,0,5,0"/>
+                <TextBlock Text="{Binding AdministrativeName2}"/>
+            </StackPanel>
+        </DataTemplate>
+
+        <ControlTemplate x:Key="WineVarietyTemplateSimple">
             <StackPanel Orientation="Horizontal">
                 <TextBlock Text="{Binding Name}"/>
             </StackPanel>
+        </ControlTemplate>
+        <ControlTemplate x:Key="WineVarietyTemplateExtended">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding SortId}" MinWidth="36" Margin="0,0,10,0"/>
+                <TextBlock Text="{Binding Name}"/>
+                <TextBlock Text="{Binding CommentFormat}" FontSize="10" VerticalAlignment="Bottom" Margin="0,0,0,2"/>
+            </StackPanel>
+        </ControlTemplate>
+        <DataTemplate x:Key="WineVarietyTemplate">
+            <Control x:Name="Control" Focusable="False" Template="{StaticResource WineVarietyTemplateExtended}"/>
+            <DataTemplate.Triggers>
+                <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ComboBoxItem}}, Path=IsSelected}" Value="{x:Null}">
+                    <Setter TargetName="Control" Property="Template" Value="{StaticResource WineVarietyTemplateSimple}"/>
+                </DataTrigger>
+            </DataTemplate.Triggers>
         </DataTemplate>
-        <DataTemplate x:Key="KgTemplate">
+
+        <DataTemplate x:Key="ModifierTemplate">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding Name}" MinWidth="250" Margin="0,0,10,0"/>
+                <TextBlock Text="{Binding ValueStr}"/>
+            </StackPanel>
+        </DataTemplate>
+
+        <DataTemplate x:Key="WineAttributeTemplate">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding Name}" MinWidth="150" Margin="0,0,10,0"/>
+            </StackPanel>
+        </DataTemplate>
+
+        <ControlTemplate x:Key="WineQualityLevelTemplateSimple">
             <StackPanel Orientation="Horizontal">
                 <TextBlock Text="{Binding Name}"/>
             </StackPanel>
+        </ControlTemplate>
+        <ControlTemplate x:Key="WineQualityLevelTemplateExtended">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding IsPredicate, Converter={StaticResource BoolToStarConverter}}" MinWidth="6"/>
+                <TextBlock Text="{Binding Name}" MinWidth="100" Margin="0,0,10,0"/>
+                <TextBlock Text="{Binding MinKmwStr}"/>
+            </StackPanel>
+        </ControlTemplate>
+        <DataTemplate x:Key="WineQualityLevelTemplate">
+            <Control x:Name="Control" Focusable="False" Template="{StaticResource WineQualityLevelTemplateExtended}"/>
+            <DataTemplate.Triggers>
+                <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ComboBoxItem}}, Path=IsSelected}" Value="{x:Null}">
+                    <Setter TargetName="Control" Property="Template" Value="{StaticResource WineQualityLevelTemplateSimple}"/>
+                </DataTrigger>
+            </DataTemplate.Triggers>
+        </DataTemplate>
+
+        <ControlTemplate x:Key="WineOriginTemplateSimple">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding Name}"/>
+            </StackPanel>
+        </ControlTemplate>
+        <ControlTemplate x:Key="WineOriginTemplateExtended">
+            <StackPanel Orientation="Horizontal">
+                <TextBlock Text="{Binding HkIdLevel}" MinWidth="70" Margin="0,0,10,0"/>
+                <TextBlock Text="{Binding Name}"/>
+            </StackPanel>
+        </ControlTemplate>
+        <DataTemplate x:Key="WineOriginTemplate">
+            <Control x:Name="Control" Focusable="False" Template="{StaticResource WineOriginTemplateExtended}"/>
+            <DataTemplate.Triggers>
+                <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ComboBoxItem}}, Path=IsSelected}" Value="{x:Null}">
+                    <Setter TargetName="Control" Property="Template" Value="{StaticResource WineOriginTemplateSimple}"/>
+                </DataTrigger>
+            </DataTemplate.Triggers>
         </DataTemplate>
     </Application.Resources>
 </Application>

Elwig/App.xaml.cs

@@ -1,37 +1,139 @@
-using System;
+using System;
 using System.Data;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
 using System.IO;
 using Elwig.Helpers;
+using Elwig.Helpers.Weighing;
+using System.Collections.Generic;
+using System.Windows.Threading;
+using System.Globalization;
+using System.Threading;
+using System.Windows.Markup;
 
 namespace Elwig {
     public partial class App : Application {
 
         public static readonly string DataPath = @"C:\ProgramData\Elwig\";
         public static readonly string ExePath = @"C:\Program Files\Elwig\";
+        public static readonly string TempPath = Path.Combine(Path.GetTempPath(), "Elwig");
         public static readonly Config Config = new(DataPath + "config.ini");
 
+        public static string ZwstId { get; private set; }
+        public static string BranchName { get; private set; }
+        public static int? BranchPlz { get; private set; }
+        public static string? BranchOrt { get; private set; }
+        public static string? BranchAddress { get; private set; }
+        public static string? BranchPhoneNr { get; private set; }
+        public static string? BranchFaxNr { get; private set; }
+        public static string? BranchMobileNr { get; private set; }
+        public static IList<IScale> Scales { get; private set; }
+        public static ClientParameters Client { get; private set; }
+
         public static bool IsPrintingReady => Documents.Html.IsReady && Documents.Pdf.IsReady;
-        public static System.Windows.Threading.Dispatcher MainDispatcher { get; private set; }
+        public static Dispatcher MainDispatcher { get; private set; }
 
         public App() : base() {
             System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
-            Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), "Elwig"));
+            Directory.CreateDirectory(App.TempPath);
             Directory.CreateDirectory(DataPath);
             MainDispatcher = Dispatcher;
+            Scales = Array.Empty<IScale>();
         }
 
         protected override void OnStartup(StartupEventArgs evt) {
+            var locale = new CultureInfo("de-AT");
+            locale.NumberFormat.CurrencyGroupSeparator = "\u202f";
+            locale.NumberFormat.NumberGroupSeparator = "\u202f";
+            locale.NumberFormat.PercentGroupSeparator = "\u202f";
+            Thread.CurrentThread.CurrentCulture = locale;
+            Thread.CurrentThread.CurrentUICulture = locale;
+            CultureInfo.DefaultThreadCurrentCulture = locale;
+            CultureInfo.DefaultThreadCurrentUICulture = locale;
+            FrameworkElement.LanguageProperty.OverrideMetadata(
+                typeof(FrameworkElement),
+                new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag))
+            );
+
+            Dictionary<string, (string, string, int?, string?, string?, string?, string?, string?)> branches = new();
             using (var ctx = new AppDbContext()) {
-                if (!ctx.Database.CanConnect()) {
-                    MessageBox.Show($"Invalid Database:\n\n{Config.DatabasePath}", "Invalid Database", MessageBoxButton.OK, MessageBoxImage.Error);
+                try {
+                    if (!ctx.Database.CanConnect()) {
+                        MessageBox.Show($"Invalid Database:\n\n{Config.DatabaseFile}", "Invalid Database", MessageBoxButton.OK, MessageBoxImage.Error);
+                        Shutdown();
+                        return;
+                    } else {
+                        branches = ctx.Branches.ToDictionary(b => b.Name.ToLower(), b => (b.ZwstId, b.Name, b.PostalDest?.AtPlz?.Plz, b.PostalDest?.AtPlz?.Dest, b.Address, b.PhoneNr, b.FaxNr, b.MobileNr));
+                        try {
+                            Client = new(ctx);
+                        } catch (Exception e) {
+                            MessageBox.Show($"Fehler beim Laden der Mandantendaten:\n\n{e.Message}", "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                            Shutdown();
+                            return;
+                        }
+                    }
+                } catch (Exception e) {
+                    MessageBox.Show($"Invalid Database:\n\n{e.Message}", "Invalid Database", MessageBoxButton.OK, MessageBoxImage.Error);
                     Shutdown();
+                    return;
                 }
             }
             Utils.RunBackground("HTML Initialization", () => Documents.Html.Init(PrintingReadyChanged));
             Utils.RunBackground("PDF Initialization", () => Documents.Pdf.Init(PrintingReadyChanged));
+
+            var list = new List<IScale>();
+            foreach (var s in Config.Scales) {
+                try {
+                    var id = s[0];
+                    var type = s[1]?.ToLower();
+                    var model = s[2];
+                    var cnx = s[3];
+                    var empty = s[4];
+                    var filling = s[5];
+                    int? limit = s[6] == null ? null : int.Parse(s[6]);
+                    var log = s[7];
+                    if (type == "systec") {
+                        list.Add(new SystecScale(id, model, cnx, empty, filling, limit, log));
+                    } else {
+                        throw new ArgumentException($"Invalid scale type: \"{type}\"");
+                    }
+                } catch (Exception e) {
+                    MessageBox.Show($"Unable to create scale {s[0]}:\n\n{e.Message}", "Scale Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+            }
+            Scales = list;
+
+            if (Config.Branch != null) {
+                if (!branches.ContainsKey(Config.Branch.ToLower())) {
+                    MessageBox.Show("Invalid branch name in config!", "Invalid Branch Config", MessageBoxButton.OK, MessageBoxImage.Error);
+                    Shutdown();
+                } else {
+                    var entry = branches[Config.Branch.ToLower()];
+                    ZwstId = entry.Item1;
+                    BranchName = entry.Item2;
+                    BranchPlz = entry.Item3;
+                    BranchOrt = entry.Item4;
+                    BranchAddress = entry.Item5;
+                    BranchPhoneNr = entry.Item6;
+                    BranchFaxNr = entry.Item7;
+                    BranchMobileNr = entry.Item8;
+                }
+            } else if (branches.Count == 1) {
+                var entry = branches.First().Value;
+                ZwstId = entry.Item1;
+                BranchName = entry.Item2;
+                BranchPlz = entry.Item3;
+                BranchOrt = entry.Item4;
+                BranchAddress = entry.Item5;
+                BranchPhoneNr = entry.Item6;
+                BranchFaxNr = entry.Item7;
+                BranchMobileNr = entry.Item8;
+            } else {
+                MessageBox.Show("Unable to determine local branch!", "Invalid Branch Config", MessageBoxButton.OK, MessageBoxImage.Error);
+                Shutdown();
+            }
+
             base.OnStartup(evt);
         }
 
@@ -46,7 +148,7 @@ namespace Elwig {
 
         protected void OnPrintingReadyChanged(EventArgs evt) {
             foreach (Window w in Windows) {
-                foreach (var b in Utils.FindVisualChilds<Button>(w).Where(b => "Print".Equals(b.Tag))) {
+                foreach (var b in ControlUtils.FindAllChildren<Button>(w).Where(b => "Print".Equals(b.Tag))) {
                     b.IsEnabled = IsPrintingReady;
                 }
             }

Elwig/Controls/BoolToValueConverter.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Windows.Data;
+
+namespace Elwig.Controls {
+    public class BoolToValueConverter<T> : IValueConverter {
+        public T FalseValue { get; set; }
+        public T TrueValue { get; set; }
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
+            return (bool)value ? TrueValue : FalseValue;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
+            return value?.Equals(TrueValue) ?? false;
+        }
+    }
+
+    public class BoolToStringConverter : BoolToValueConverter<string> { }
+}

Elwig/Dialogs/AbwertenDialog.xaml

@@ -0,0 +1,59 @@
+<Window x:Class="Elwig.Dialogs.AbwertenDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Dialogs"
+        mc:Ignorable="d"
+        ResizeMode="NoResize"
+        ShowInTaskbar="False"
+        Topmost="True"
+        WindowStartupLocation="CenterOwner"
+        FocusManager.FocusedElement="{Binding ElementName=WeightInput}"
+        Title="Teillieferung abwerten" Height="190" Width="400">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="HorizontalAlignment" Value="Right"/>
+            <Setter Property="VerticalAlignment" Value="Bottom"/>
+            <Setter Property="Width" Value="100"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="70"/>
+            <ColumnDefinition/>
+        </Grid.ColumnDefinitions>
+
+        <TextBlock Margin="10,10,10,10" Grid.ColumnSpan="2" TextWrapping="Wrap" TextAlignment="Center">
+            Welche Menge der Teillieferung <Run x:Name="TextLsNr" FontWeight="Bold" Text="20201010A000/1"/><LineBreak/>
+            von <Run x:Name="TextMember" FontWeight="Bold" Text="Max Mustermann"/><LineBreak/>
+            mit <Run x:Name="TextWeight" FontWeight="Bold" Text="1&#x202f;000&#x202f;kg"/> soll abgewertet werden?
+        </TextBlock>
+
+        <Label Content="Gewicht:" Margin="10,70,10,10"/>
+        <Grid Grid.Column="1" Width="70" Height="25" Margin="0,70,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
+            <TextBox x:Name="WeightInput" TextAlignment="Right" Padding="2,2,17,2"
+                     TextChanged="WeightInput_TextChanged"/>
+            <Label Content="kg" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10" Padding="2,4,2,4"/>
+        </Grid>
+
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.Column="1" IsEnabled="False" IsDefault="True"
+                Click="ConfirmButton_Click"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.Column="1" IsCancel="True"/>
+    </Grid>
+</Window>

Elwig/Dialogs/AbwertenDialog.xaml.cs

@@ -0,0 +1,33 @@
+using Elwig.Helpers;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Elwig.Dialogs {
+    public partial class AbwertenDialog : Window {
+
+        public int Weight;
+
+        public AbwertenDialog(string lsnr, string name, int weight) {
+            Weight = weight;
+            InitializeComponent();
+            TextLsNr.Text = lsnr;
+            TextMember.Text = name;
+            TextWeight.Text = $"{weight:N0}\u202fkg";
+        }
+
+        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
+            DialogResult = true;
+            Weight = int.Parse(WeightInput.Text);
+            Close();
+        }
+
+        private void UpdateButtons() {
+            ConfirmButton.IsEnabled = int.TryParse(WeightInput.Text, out var w) && w > 0 && w <= Weight;
+        }
+
+        private void WeightInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            Validator.CheckInteger(WeightInput, true, 5);
+            UpdateButtons();
+        }
+    }
+}

Elwig/Dialogs/DeliveryExtractionDialog.xaml

@@ -0,0 +1,60 @@
+<Window x:Class="Elwig.Dialogs.DeliveryExtractionDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Dialogs"
+        mc:Ignorable="d"
+        ResizeMode="NoResize"
+        ShowInTaskbar="False"
+        Topmost="True"
+        WindowStartupLocation="CenterOwner"
+        FocusManager.FocusedElement="{Binding ElementName=WeightInput}"
+        Title="Teillieferung extrahieren" Height="210" Width="380">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="HorizontalAlignment" Value="Right"/>
+            <Setter Property="VerticalAlignment" Value="Bottom"/>
+            <Setter Property="Width" Value="100"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="200"/>
+            <ColumnDefinition/>
+        </Grid.ColumnDefinitions>
+
+        <TextBlock Margin="10,10,0,10" TextWrapping="Wrap">
+            Was soll mit der Teillieferung <Run x:Name="TextLsNr" FontWeight="Bold" Text="20201010A000/1"/><LineBreak/>
+            von <Run x:Name="TextMember" FontWeight="Bold" Text="Max Mustermann"/> geschehen?
+        </TextBlock>
+        <RadioButton x:Name="NewDeliveryButton" Content="Neue Lieferung erstellen"
+                     Margin="10,80,0,10" HorizontalAlignment="Left" VerticalAlignment="Top"
+                     Checked="Selection_Changed" Unchecked="Selection_Changed"/>
+        <RadioButton x:Name="AddToDeliveryButton" Content="Zu Lieferung hinzufügen"
+                     Margin="10,100,0,10" HorizontalAlignment="Left" VerticalAlignment="Top"
+                     Checked="Selection_Changed" Unchecked="Selection_Changed"/>
+
+        <ListBox x:Name="DeliveryList" Grid.Column="1" Margin="10,10,10,45"
+                 SelectionChanged="DeliveryList_SelectionChanged"/>
+
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.ColumnSpan="2" IsEnabled="False" IsDefault="True"
+                Click="ConfirmButton_Click"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.ColumnSpan="2" IsCancel="True"/>
+    </Grid>
+</Window>

Elwig/Dialogs/DeliveryExtractionDialog.xaml.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using System.Windows;
+
+namespace Elwig.Dialogs {
+    public partial class DeliveryExtractionDialog : Window {
+
+        public string? AddTo;
+
+        public DeliveryExtractionDialog(string lsnr, string name, bool single, IEnumerable<string> lsnrs) {
+            InitializeComponent();
+            TextLsNr.Text = lsnr;
+            TextMember.Text = name;
+            NewDeliveryButton.IsEnabled = !single;
+            DeliveryList.IsEnabled = false;
+            DeliveryList.ItemsSource = lsnrs;
+        }
+
+        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
+            DialogResult = true;
+            AddTo = NewDeliveryButton.IsChecked == true ? "new" : DeliveryList.SelectedItem as string;
+            Close();
+        }
+
+        private void UpdateButtons() {
+            ConfirmButton.IsEnabled = NewDeliveryButton.IsChecked == true || (AddToDeliveryButton.IsChecked == true && DeliveryList.SelectedItem != null);
+            DeliveryList.IsEnabled = AddToDeliveryButton.IsChecked == true;
+        }
+
+        private void Selection_Changed(object sender, RoutedEventArgs evt) {
+            UpdateButtons();
+        }
+
+        private void DeliveryList_SelectionChanged(object sender, RoutedEventArgs evt) {
+            UpdateButtons();
+        }
+    }
+}

Elwig/Dialogs/LinearPriceIncreaseDialog.xaml

@@ -0,0 +1,53 @@
+<Window x:Class="Elwig.Dialogs.LinearPriceIncreaseDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Dialogs"
+        mc:Ignorable="d"
+        ResizeMode="NoResize"
+        ShowInTaskbar="False"
+        Topmost="True"
+        WindowStartupLocation="CenterOwner"
+        FocusManager.FocusedElement="{Binding ElementName=PriceInput}"
+        Title="Linear wachsen" Height="140" Width="270">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="HorizontalAlignment" Value="Right"/>
+            <Setter Property="VerticalAlignment" Value="Bottom"/>
+            <Setter Property="Width" Value="100"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="55"/>
+            <ColumnDefinition/>
+        </Grid.ColumnDefinitions>
+
+        <Label Content="Preis:" Margin="10,20,10,10"/>
+        <Grid Grid.Column="1" Width="145" Height="25" Margin="0,20,0,0" HorizontalAlignment="Left" VerticalAlignment="Top">
+            <TextBox x:Name="PriceInput" TextAlignment="Right" Padding="2,2,30,2"
+                     TextChanged="PriceInput_TextChanged"/>
+            <Label Content="€/kg" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10" Padding="2,4,2,4"/>
+        </Grid>
+
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="17,0,133,10" IsEnabled="False" IsDefault="True"
+                Click="ConfirmButton_Click" Grid.ColumnSpan="2" HorizontalAlignment="Stretch"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="0,0,20,10" Grid.Column="1" IsCancel="True"/>
+    </Grid>
+</Window>

Elwig/Dialogs/LinearPriceIncreaseDialog.xaml.cs

@@ -0,0 +1,30 @@
+using Elwig.Helpers;
+using System.Text.RegularExpressions;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Elwig.Dialogs {
+    public partial class LinearPriceIncreaseDialog : Window {
+
+        public double Price = 0.0;
+
+        public LinearPriceIncreaseDialog() {
+            InitializeComponent();
+        }
+
+        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
+            DialogResult = true;
+            Price = double.Parse(PriceInput.Text.Replace("\u202f", ""));
+            Close();
+        }
+
+        private void UpdateButtons(ValidationResult res) {
+            ConfirmButton.IsEnabled = res.IsValid;
+        }
+
+        private void PriceInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            var res = Validator.CheckDecimal(PriceInput, true, 2, 8);
+            UpdateButtons(res);
+        }
+    }
+}

Elwig/Dialogs/ManualWeighingDialog.xaml

@@ -0,0 +1,57 @@
+<Window x:Class="Elwig.Dialogs.ManualWeighingDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Dialogs"
+        mc:Ignorable="d"
+        ResizeMode="NoResize"
+        ShowInTaskbar="False"
+        Topmost="True"
+        WindowStartupLocation="CenterOwner"
+        FocusManager.FocusedElement="{Binding ElementName=WeightInput}"
+        Title="Handwiegung" Height="170" Width="400">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="HorizontalAlignment" Value="Right"/>
+            <Setter Property="VerticalAlignment" Value="Bottom"/>
+            <Setter Property="Width" Value="100"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="70"/>
+            <ColumnDefinition/>
+        </Grid.ColumnDefinitions>
+
+        <Label Content="Gewicht:" Margin="10,20,10,10"/>
+        <Grid Grid.Column="1" Width="70" Height="25" Margin="0,20,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
+            <TextBox x:Name="WeightInput" TextAlignment="Right" Padding="2,2,17,2"
+                     TextChanged="WeightInput_TextChanged"/>
+            <Label Content="kg" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10" Padding="2,4,2,4"/>
+        </Grid>
+
+        <Label Content="Grund:" Margin="10,50,10,10"/>
+        <TextBox x:Name="ReasonInput" Grid.Column="1" Margin="0,50,10,10"
+                 TextChanged="ReasonInput_TextChanged"/>
+
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.Column="1" IsEnabled="False" IsDefault="True"
+                Click="ConfirmButton_Click"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.Column="1" IsCancel="True"/>
+    </Grid>
+</Window>

Elwig/Dialogs/ManualWeighingDialog.xaml.cs

@@ -0,0 +1,41 @@
+using Elwig.Helpers;
+using System.Text.RegularExpressions;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Elwig.Dialogs {
+    public partial class ManualWeighingDialog : Window {
+
+        public int Weight = 0;
+        public string? Reason = null;
+
+        public ManualWeighingDialog() {
+            InitializeComponent();
+        }
+
+        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
+            DialogResult = true;
+            Weight = int.Parse(WeightInput.Text);
+            Reason = Regex.Replace(ReasonInput.Text, @"\s+", "").Trim();
+            if (Reason == "") {
+                Reason = null;
+            } else if (!Reason.EndsWith(".") || !Reason.EndsWith("!") || !Reason.EndsWith("?")) {
+                Reason += ".";
+            }
+            Close();
+        }
+
+        private void UpdateButtons() {
+            ConfirmButton.IsEnabled = WeightInput.Text.Length > 0 && ReasonInput.Text.Trim().Length > 0;
+        }
+
+        private void WeightInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            Validator.CheckInteger(WeightInput, true, 5);
+            UpdateButtons();
+        }
+
+        private void ReasonInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            UpdateButtons();
+        }
+    }
+}

Elwig/Documents/BusinessDocument.cshtml

@@ -1,4 +1,4 @@
-@using RazorLight
+@using RazorLight
 @inherits TemplatePage<Elwig.Documents.BusinessDocument>
 @model Elwig.Documents.BusinessDocument
 @{ Layout = "Document"; }
@@ -6,12 +6,14 @@
 <div class="info-wrapper">
     <div class="address-wrapper">
         <div class="sender">
-            <div>WG Matzen | Schloßstraße 6 | 2243 Matzen</div>
-            <div>E Österreichische Post AG Eco Brief</div>
+            @if (Model.IncludeSender) {
+                <div>@Elwig.App.Client.Sender1</div>
+                <div>@Elwig.App.Client.Sender2</div>
+            }
         </div>
         <address>@Model.Address</address>
     </div>
-    <aside></aside>
+    <aside>@Raw(Model.Aside)</aside>
 </div>
 <main>
     @RenderBody()

Elwig/Documents/BusinessDocument.cshtml.cs

@@ -1,23 +1,35 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Elwig.Models;
 
 namespace Elwig.Documents {
     public abstract class BusinessDocument : Document {
 
-        public BusinessDocument(string title, Member m) : base(title) {
-            Member = m;
-        }
+        public Member Member;
+        public bool IncludeSender = false;
+        public string Aside { get; set; }
+        public string? Location { get; set; }
 
-        public Member Member { get; set; }
+        public BusinessDocument(string title, Member m, bool includeSender = false) : base(title) {
+            Member = m;
+            Location = App.BranchName;
+            IncludeSender = includeSender;
+            var uid = (m.UstIdNr ?? "-") + (m.IsBuchführend ? "" : " <i>(pauschaliert)</i>");
+            Aside = $"<table><colgroup><col span='1' style='width: 2.25cm;'/><col span='1' style='width: 100%;'/></colgroup>" +
+                $"<thead><tr><th colspan='2'>Mitglied</th></tr></thead><tbody>" +
+                $"<tr><th>Mitglieds-Nr.</th><td>{m.MgNr}</td></tr>" +
+                $"<tr><th>Betriebs-Nr.</th><td>{m.LfbisNr}</td></tr>" +
+                $"<tr><th>UID</th><td>{uid}</td></tr>" +
+                $"</tbody></table>";
+        }
 
         public string Address {
             get {
-                // TODO Name/Rechnungsadresse
-                return $"{Member.GivenName} {Member.FamilyName}\n{Member.Address}";
+                var b = Member.BillingAddress;
+                var plz = (b == null) ? Member.PostalDest.AtPlz : b.PostalDest.AtPlz;
+                if (b != null) {
+                    return $"{b.Name}\n{Member.AdministrativeName}\n{b.Address}\n{plz.Plz} {plz.Dest}\nÖsterreich";
+                } else {
+                    return $"{Member.AdministrativeName}\n{Member.Address}\n{plz.Plz} {plz.Dest}\nÖsterreich";
+                }
             }
         }
     }

Elwig/Documents/BusinessLetter.cshtml

@@ -1,4 +1,4 @@
-@using RazorLight
+@using RazorLight
 @inherits TemplatePage<Elwig.Documents.BusinessLetter>
 @model Elwig.Documents.BusinessLetter
 @{ Layout = "BusinessDocument"; }

Elwig/Documents/BusinessLetter.cshtml.cs

@@ -1,14 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Elwig.Models;
 
 namespace Elwig.Documents {
     public class BusinessLetter : BusinessDocument {
-        public BusinessLetter(string title, Member m) : base(title, m) {
-
-        }
+        public BusinessLetter(string title, Member m) : base(title, m) { }
     }
 }

Elwig/Documents/DeliveryNote.cshtml

@@ -0,0 +1,165 @@
+@using RazorLight
+@inherits TemplatePage<Elwig.Documents.DeliveryNote>
+@model Elwig.Documents.DeliveryNote
+@{ Layout = "BusinessDocument"; }
+
+<div class="date">@Model.Location, am @($"{Model.Date:dd.MM.yyyy}")</div>
+<h1>@Model.Title</h1>
+@{
+    bool displayStats = true;  // Model.Delivery.Year == Model.CurrentNextSeason
+}
+<script>
+    document.addEventListener("DOMContentLoaded", () => {
+        const hidden = document.getElementsByClassName("hidden")[0];
+        const bottom = hidden.offsetTop + hidden.offsetHeight;
+        const cm = bottom * 2.54 / 96 * window.devicePixelRatio;
+
+        if (cm > 25.75) {
+            // force page break
+            const table = document.getElementsByClassName("delivery")[0];
+
+            const hr = document.createElement("hr");
+            hr.classList.add("page-break");
+            table.before(hr);
+
+            const stats = document.getElementById("delivery-stats");
+            stats.getElementsByTagName("table")[0].classList.add("expanded");
+            hr.before(stats);
+
+            const p = document.createElement("p");
+            p.innerText = "Siehe nächste Seite."
+            stats.before(p);
+        }
+    });
+</script>
+<table class="delivery">
+    <colgroup>
+        <col style="width: 1cm;"/>
+        <col style="width: 25%;"/>
+        <col style="width: 25%;"/>
+        <col style="width: 25%;"/>
+        <col style="width: 25%;"/>
+        <col style="width: 3cm;"/>
+        <col style="width: 1.25cm;"/>
+        <col style="width: 1.25cm;"/>
+        <col style="width: 1.5cm;"/>
+    </colgroup>
+    <thead>
+        <tr>
+            <th class="main" rowspan="2" style="text-align: center;">Pos.</th>
+            <th class="main" rowspan="2" colspan="2">Sorte</th>
+            <th class="main" rowspan="2" colspan="2">Attribut(e)</th>
+            <th class="main" rowspan="2">Qualitätsstufe</th>
+            <th colspan="2">Gradation</th>
+            <th>Gewicht</th>
+        </tr>
+        <tr>
+            <th style="font-size: 8pt;">[°Oe]</th>
+            <th style="font-size: 8pt;">[°KMW]</th>
+            <th style="font-size: 8pt;">[kg]</th>
+        </tr>
+    </thead>
+    <tbody>
+        @foreach (var part in Model.Delivery.Parts.OrderBy(p => p.DPNr)) {
+            <tr class="main">
+                <td style="text-align: center;">@part.DPNr</td>
+                <td colspan="2">@part.Variant.Name</td>
+                <td colspan="2">@string.Join(" / ", part.Attributes)</td>
+                <td>@part.Quality.Name</td>
+                <td class="narrow" style="text-align: center;">@($"{part.Oe:N0}")</td>
+                <td class="narrow" style="text-align: center;">@($"{part.Kmw:N1}")</td>
+                <td class="narrow" style="text-align: right;">@($"{part.Weight:N0}")</td>
+            </tr>
+            <tr><td></td><td colspan="5" style="white-space: pre;"><i>Herkunft:</i> @part.OriginString</td></tr>
+            @if (part.Modifiers.Count() > 0) {
+                var first = true;
+                foreach (var mod in part.Modifiers) {
+                    <tr class="tight @(first ? "first" : "")"><td></td><td>@Raw(first ? "<i>Zu-/Abschläge:</i>" : "")</td><td colspan="3"><b>@mod.Name</b></td><td style="white-space: pre;">@mod.ValueStr</td></tr>
+                    first = false;
+                }
+            }
+            <tr><td></td><td colspan="5">
+                @Raw(part.ManualWeighing ? "<i>Handwiegung</i>" : $"<i>Waage:</i> {part.ScaleId ?? "?"}, <i>ID:</i> {part.WeighingId ?? "?"}") (@(part.IsGerebelt ? "gerebelt gewogen" : "nicht gerebelt gewogen"))
+            </td></tr>
+            @if (part.Comment != null) {
+                <tr><td></td><td colspan="5"><i>Anmerkung:</i> @part.Comment</td></tr>
+            }
+            @if (part.Temperature != null || part.Acid != null) {
+                <tr><td></td><td colspan="5">@Raw(part.Temperature != null ? $"<i>Temperatur:</i> {part.Temperature:N1} °C" : "")@(part.Temperature != null && part.Acid != null ? ", " : "")@Raw(part.Acid != null ? $"<i>Säure:</i> {part.Acid:N1} g/l" : "")</td></tr>
+            }
+        }
+        @if (Model.Delivery.Parts.Count() > 1) {
+            <tr class="main sum">
+                <td colspan="6">Gesamt:</td>
+                <td style="text-align: center;">@($"{Model.Delivery.Oe:N0}")</td>
+                <td style="text-align: center;">@($"{Model.Delivery.Kmw:N1}")</td>
+                <td style="text-align: right;">@($"{Model.Delivery.Weight:N0}")</td>
+            </tr>
+        }
+    </tbody>
+</table>
+@if (Model.Delivery.Comment != null) {
+    <p class="comment">Amerkung zur Lieferung: @Model.Delivery.Comment</p>
+}
+@if (displayStats) {
+    <div id="delivery-stats">
+        <table class="delivery-stats">
+            <colgroup>
+                <col style="width: 100%;"/>
+                <col style="width: 2cm;"/>
+                <col style="width: 2cm;"/>
+                <col style="width: 2cm;"/>
+                <col style="width: 2cm;"/>
+                <col style="width: 2cm;"/>
+                <col style="width: 2cm;"/>
+            </colgroup>
+            <thead>
+                <tr>
+                    <th><b>Gesamtlieferung</b> [kg]</th>
+                    <th>Lieferpflicht</th>
+                    <th>Lieferrecht</th>
+                    <th>Unterliefert</th>
+                    <th>Noch zu liefern</th>
+                    <th>Überliefert</th>
+                    <th>Geliefert</th>
+                </tr>
+            </thead>
+            <tbody>
+                @{
+                    string FormatRow(int obligation, int right, int sum) {
+                        return $"<td>{obligation:N0}</td>" +
+                            $"<td>{right:N0}</td>" +
+                            $"<td>{(sum < obligation ? $"{obligation - sum:N0}" : "-")}</td>" +
+                            $"<td>{(sum >= obligation && sum <= right ? $"{right - sum:N0}" : "-")}</td>" +
+                            $"<td>{(sum > right ? $"{sum - right:N0}" : "-")}</td>" +
+                            $"<td>{sum:N0}</td>";
+                    }
+                    var sortids = Model.Delivery.Parts.Select(p => p.SortId).ToList();
+                }
+                <tr>
+                    <th>Geschäftsanteile</th>
+                    @Raw(FormatRow(Model.Member.DeliveryObligation, Model.Member.DeliveryRight, Model.Member.Deliveries.Where(d => d.Year == Model.Delivery.Year).Sum(d => d.Weight)))
+                </tr>
+                @foreach (var (id, name, right, obligation, sum) in Model.MemberBuckets.OrderBy(b => b.Item1)) {
+                    if (right > 0 && obligation > 0) {
+                        <tr class="@(sortids.Contains(id[..2]) ? "" : "optional")">
+                            <th>@name</th>
+                            @Raw(FormatRow(obligation, right, sum))
+                        </tr>
+                    }
+                }
+            </tbody>
+        </table>
+    </div>
+}
+@for (int i = 0; i < 2; i++) {
+    <div class="@(i == 0 ? "hidden" : "bottom")">
+        @if (Model.Text != null) {
+            <p class="comment">@Model.Text</p>
+        }
+        <div class="signatures">
+            <div>Genossenschaft</div>
+            <div>Mitglied</div>
+        </div>
+    </div>
+}

Elwig/Documents/DeliveryNote.cshtml.cs

@@ -0,0 +1,25 @@
+using Elwig.Helpers;
+using Elwig.Models;
+using System.Collections.Generic;
+
+namespace Elwig.Documents {
+    public class DeliveryNote : BusinessDocument {
+
+        public Delivery Delivery;
+        public string? Text;
+        public IEnumerable<(string, string, int, int, int)> MemberBuckets;
+
+        public DeliveryNote(Delivery d, AppDbContext ctx) : base($"Traubenübernahmeschein Nr. {d.LsNr}", d.Member) {
+            Delivery = d;
+            Aside = Aside.Replace("</table>", "") +
+                $"<thead><tr><th colspan='2'>Lieferung</th></tr></thead><tbody>" +
+                $"<tr><th>LS-Nr.</th><td>{d.LsNr}</td></tr>" +
+                $"<tr><th>Datum/Zeit</th><td>{d.Date:dd.MM.yyyy} / {d.Time:HH:mm}</td></tr>" +
+                $"<tr><th>Zweigstelle</th><td>{d.Branch.Name}</td></tr>" +
+                $"</tbody></table>";
+            Text = App.Client.TextDeliveryNote;
+            DocumentId = d.LsNr;
+            MemberBuckets = ctx.GetMemberBuckets(d.Member, d.Year).GetAwaiter().GetResult();
+        }
+    }
+}

Elwig/Documents/Document.cshtml

@@ -1,12 +1,12 @@
-@using RazorLight
+@using RazorLight
 @inherits TemplatePage<Elwig.Documents.Document>
 @model Elwig.Documents.Document
 
 <!DOCTYPE html>
 <html lang="de-AT">
 <head>
-	<title>@Model.Title</title>
-	<meta charset="UTF-8"/>
+    <title>@Model.Title</title>
+    <meta charset="UTF-8"/>
     <script>
         window.PagedConfig = { auto: false };
         if (!navigator.webdriver) {
@@ -14,22 +14,22 @@
             window.addEventListener("afterprint", () => { location.reload(); });
         }
     </script>
-    <!-- TODO store paged.js locally to avoid using the internet -->
-    <script src="https://unpkg.com/pagedjs/dist/paged.polyfill.js"></script>
-    @{ await IncludeAsync("Style.css"); }
+    <script src="@Raw(Model.DataPath)\resources\paged.polyfill.js"></script>
+    <link rel="stylesheet" href="@Raw(Model.DataPath)\resources\style.css" />
 </head>
 <body>
     <div class="m1"></div>
     <div class="m2"></div>
     <div class="m3"></div>
-    <header>@Raw(Model.Header)</header>
     <div class="footer-wrapper">
         <div class="pre-footer">
-            <span class="date">@Model.FullDateString</span>
+            <span class="date">@($"{Model.Date:dddd, d. MMMM yyyy}")</span>
+            <span class="doc-id">@Model.DocumentId</span>
             <span class="page"></span>
         </div>
         <footer>@Raw(Model.Footer)</footer>
     </div>
+    <header>@Raw(Model.Header)</header>
     <div class="spacing"></div>
     <div class="main-wrapper">
         @RenderBody()

Elwig/Documents/Document.cshtml.cs

@@ -1,10 +1,6 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System;
 using System.Threading.Tasks;
 using System.IO;
-using System.Windows;
 using Elwig.Helpers;
 
 namespace Elwig.Documents {
@@ -13,9 +9,17 @@ namespace Elwig.Documents {
         private TempFile? PdfFile = null;
 
         public Document(string title) {
+            var c = App.Client;
+            DataPath = App.DataPath;
+            CurrentNextSeason = Utils.CurrentNextSeason;
             Title = title;
-            Header = "<h1>Winzergenossenschaft Matzen</h1>";
-            Footer = "Winzergenossenschaft für Matzen und Umgebung reg. Gen.m.b.H.";
+            Header = $"<h1>{c.Name}</h1>";
+            Footer = Utils.GenerateFooter("<br/>", " \u00b7 ")
+                .Item(c.NameFull).NextLine()
+                .Item(c.Address).Item($"{c.Plz} {c.Ort}").Item("Österreich").Item("Tel.", c.PhoneNr).Item("Fax", c.FaxNr).NextLine()
+                .Item(c.EmailAddress).Item(c.Website).Item("Betriebs-Nr.", c.LfbisNr).Item("UID", c.UstIdNr).NextLine()
+                .Item("BIC", c.Bic).Item("IBAN", c.Iban)
+                .ToString();
             Date = DateTime.Today;
         }
 
@@ -26,26 +30,25 @@ namespace Elwig.Documents {
         public void Dispose() {
             PdfFile?.Dispose();
             PdfFile = null;
+            GC.SuppressFinalize(this);
         }
 
+        public string DataPath { get; set; }
+        public int CurrentNextSeason { get; set; }
         public string Title { get; set; }
-
         public string Header { get; set; }
-
         public string Footer { get; set; }
-
-        public string FullDateString {
-            get => Date.ToString("dddd, d. MMMM yyyy");
-        }
-
         public DateTime Date { get; set; }
+        public string? DocumentId { get; set; }
 
         private async Task<string> Render() {
             string name;
             if (this is BusinessLetter) {
                 name = "BusinessLetter";
+            } else if (this is DeliveryNote) {
+                name = "DeliveryNote";
             } else {
-                throw new InvalidOperationException();
+                throw new InvalidOperationException("Invalid document object");
             }
             return await Html.CompileRenderAsync(name, this);
         }
@@ -56,7 +59,7 @@ namespace Elwig.Documents {
                 await File.WriteAllTextAsync(tmpHtml.FilePath, await Render());
                 await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath);
             }
-            Pdf.UpdateMetadata(pdf.FilePath, Title, "Winzergenossenschaft für Matzen und Umgebung reg. Gen.m.b.H.");
+            Pdf.UpdateMetadata(pdf.FilePath, Title, App.Client.NameFull);
             PdfFile = pdf;
         }
 
@@ -65,9 +68,9 @@ namespace Elwig.Documents {
             File.Copy(PdfFile.FilePath, pdfPath);
         }
 
-        public async Task Print() {
+        public async Task Print(int copies = 1) {
             if (PdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
-            Pdf.Print(PdfFile.FilePath);
+            await Pdf.Print(PdfFile.FilePath, copies);
         }
 
         public void Show() {

Elwig/Documents/Html.cs

@@ -1,4 +1,4 @@
-using RazorLight;
+using RazorLight;
 using System;
 using System.Threading.Tasks;
 
@@ -10,14 +10,14 @@ namespace Elwig.Documents {
 
         public static async Task Init(Action evtHandler) {
             var e = new RazorLightEngineBuilder()
-                .UseEmbeddedResourcesProject(typeof(App).Assembly, "Elwig.Documents")
+                .UseFileSystemProject(App.DataPath + "resources")
                 .UseMemoryCachingProvider()
                 .Build();
 
-            await e.CompileTemplateAsync("Style.css");
             await e.CompileTemplateAsync("Document");
             await e.CompileTemplateAsync("BusinessDocument");
             await e.CompileTemplateAsync("BusinessLetter");
+            await e.CompileTemplateAsync("DeliveryNote");
 
             Engine = e;
             evtHandler();

Elwig/Documents/Pdf.cs

@@ -1,24 +1,17 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
-using System.Linq;
-using System.Reflection.Metadata.Ecma335;
-using System.Text;
+using System;
 using System.Threading.Tasks;
 using System.Windows;
-using System.Windows.Shapes;
 using PdfSharp.Pdf.IO;
 using PuppeteerSharp;
-using PuppeteerSharp.Media;
-using RazorLight;
 using Elwig.Helpers;
 using Elwig.Windows;
+using System.Diagnostics;
 
 namespace Elwig.Documents {
     public static class Pdf {
 
         private static readonly string Chromium = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";
+        private static readonly string PdfToPrinter = App.ExePath + "PDFtoPrinter.exe";
         private static IBrowser? Browser = null;
         public static bool IsReady => Browser != null;
 
@@ -26,6 +19,8 @@ namespace Elwig.Documents {
             Browser = await Puppeteer.LaunchAsync(new LaunchOptions {
                 Headless = true,
                 ExecutablePath = Chromium,
+                // paged.js uses XHRs to load styles, so this is needed
+                Args = new[] { "--allow-file-access-from-files" },
             });
             evtHandler();
         }
@@ -55,7 +50,7 @@ namespace Elwig.Documents {
             });
         }
 
-        private static void OnConsole(object sender, ConsoleEventArgs e) {
+        private static void OnConsole(object? sender, ConsoleEventArgs e) {
             MessageBox.Show(e.Message.Text);
         }
 
@@ -80,8 +75,12 @@ namespace Elwig.Documents {
             });
         }
 
-        public static void Print(string path) {
-            // TODO print pdf
+        public static async Task Print(string path, int copies = 1) {
+            var p = new Process() { StartInfo = new() { FileName = PdfToPrinter } };
+            p.StartInfo.ArgumentList.Add(path);
+            p.StartInfo.ArgumentList.Add($"copies={copies}");
+            p.Start();
+            await p.WaitForExitAsync();
         }
     }
 }

Elwig/Documents/Style.css.cshtml

@@ -1,180 +0,0 @@
-@using RazorLight
-@inherits TemplatePage<Elwig.Documents.Document>
-
-<style>
-    :root {
-        font-family: "Times New Roman", serif;
-        line-height: 1;
-    }
-
-    * {
-        box-sizing: border-box;
-    }
-
-    body {
-        margin: 0;
-    }
-
-    .m1, .m2, .m3 {
-        height: 0;
-        width: 1cm;
-        position: fixed;
-        left: 0;
-        border-top: 1pt solid black;
-    }
-
-    .m1 {top: 105mm;}
-    .m2 {top: 148.5mm;}
-    .m3 {top: 210mm;}
-
-    header {
-        height: 45mm;
-        padding: 5mm;
-        position: absolute;
-        top: -25mm;
-        left: 0;
-        right: 0;
-        text-align: center;
-    }
-    .spacing {height: 20mm;}
-    .info-wrapper {
-        width: 100%;
-        height:45mm;
-        margin: 0 0 8.46mm 0;
-        position: relative;
-    }
-
-    .address-wrapper {
-        height: 45mm;
-        width: 85mm;
-        margin: 0;
-        padding: 5mm;
-        position: absolute;
-        left: 20mm;
-        top: 0;
-        display: flex;
-        flex-direction: column;
-        justify-content: flex-end;
-    }
-
-    .address-wrapper .sender {
-        flex: 17.7mm 1 1;
-        font-size: 8pt;
-        display: flex;
-        flex-direction: column;
-        justify-content: flex-end;
-        padding-bottom: 2mm;
-    }
-
-    address {
-        flex: 27.3mm 1 1;
-        white-space: pre-line;
-        font-size: 12pt;
-        font-style: normal;
-    }
-
-    aside {
-        height: 40mm;
-        width: 75mm;
-        margin: 0;
-        position: absolute;
-        left: 125mm;
-        top: 5mm;
-    }
-
-    main {
-        margin: 8.46mm 20mm 4.23mm 25mm;
-    }
-
-    main :first-child {
-        margin-top: 0;
-    }
-
-    main h1, main p {
-        font-size: 12pt;
-        margin: 1em 0;
-        text-align: justify;
-        widows: 3;
-        orphans: 3;
-    }
-
-    main .date {
-        margin-bottom: 2em;
-        text-align: right;
-    }
-
-    main h1 {
-        margin-bottom: 2em;
-    }
-
-    .footer-wrapper {
-        padding: 0 20mm 0 25mm;
-        position: running(page-footer);
-        bottom: 0;
-        left: 0;
-        right: 0;
-    }
-
-    .pre-footer {
-        margin: 4.23mm 0;
-        font-size: 10pt;
-        display: flex;
-    }
-
-    .pre-footer .date, .pre-footer .page {
-        flex: 100px 1 1;
-    }
-
-    .pre-footer .date {text-align: left;}
-    .pre-footer .page {text-align: right;}
-    .page::after {
-        content: "Seite 1 von 1";
-    }
-
-    footer {
-        font-size: 10pt;
-        border-top: 1pt solid black;
-        height: 25mm;
-        padding-top: 1mm;
-        text-align: center;
-    }
-
-    @@page {
-        size: A4;
-        margin: 25mm 0 35mm 0;
-        @@bottom-center {
-            content: element(page-footer);
-        }
-    }
-
-    @@media screen {
-        body, header, .footer-wrapper {
-            width: 210mm;
-        }
-        header, .address-wrapper, aside, main {
-            border: 1px solid lightgray;
-        }
-        .m1, .m2, .m3 {display: none;}
-        header {top: 0;}
-        .spacing {height: 45mm;}
-        .main-wrapper {
-            margin-bottom: 40mm;
-        }
-        .footer-wrapper {
-            position: fixed;
-            bottom: 0;
-            left: 0;
-            right: 0;
-            background: white;
-        }
-    }
-
-    @@media print {
-        .page::after {
-            content: "Seite " counter(page) " von " counter(pages);
-        }
-        .footer-wrapper {
-            display: none;
-        }
-    }
-</style>

Elwig/Documents/style.css

@@ -0,0 +1,367 @@
+
+:root {
+    font-family: "Times New Roman", serif;
+    line-height: 1;
+}
+
+* {
+    box-sizing: border-box;
+}
+
+body {
+    margin: 0;
+}
+
+.m1, .m2, .m3 {
+    height: 0;
+    width: 1cm;
+    position: fixed;
+    left: 0;
+    border-top: 1pt solid black;
+}
+
+.m1 {top: 105mm;}
+.m2 {top: 148.5mm;}
+.m3 {top: 210mm;}
+
+header, .address-wrapper, aside, main {
+    overflow: hidden;
+}
+
+header {
+    height: 45mm;
+    padding: 5mm;
+    position: absolute;
+    top: -25mm;
+    left: 0;
+    right: 0;
+    text-align: center;
+}
+
+header h1{
+    font-size: 18pt;
+    margin-top: 1cm;
+}
+
+.spacing {
+    height: 20mm;
+}
+
+.info-wrapper {
+    width: 100%;
+    height: 45mm;
+    margin: 0 0 8.46mm 0;
+    position: relative;
+}
+
+.address-wrapper {
+    height: 45mm;
+    width: 85mm;
+    margin: 0;
+    padding: 5mm;
+    position: absolute;
+    left: 20mm;
+    top: 0;
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-end;
+}
+
+.address-wrapper .sender {
+    flex: 17.7mm 1 1;
+    font-size: 8pt;
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-end;
+    padding-bottom: 2mm;
+}
+
+address {
+    flex: 27.3mm 1 1;
+    white-space: pre-line;
+    font-size: 12pt;
+    font-style: normal;
+}
+
+table td,
+table th {
+    padding: 0.5mm 1mm;
+}
+
+aside {
+    height: 40mm;
+    width: 75mm;
+    margin: 0;
+    position: absolute;
+    left: 125mm;
+    top: 5mm;
+}
+
+aside table {
+    border-collapse: collapse;
+    border: 1pt solid #808080;
+    width: calc(100% - 1cm);
+    margin-right: 1cm;
+}
+
+aside table thead:not(:first-child) tr {
+    border-top: 1pt solid #808080;
+}
+
+aside table thead th {
+    background-color: #E0E0E0;
+    font-size: 10pt;
+}
+
+aside table tbody th,
+aside table tbody td {
+    text-align: left;
+    font-size: 10pt;
+}
+
+aside table tbody th {
+    font-weight: normal;
+}
+
+main {
+    margin: 8.46mm 20mm 4.23mm 25mm;
+}
+
+main :first-child {
+    margin-top: 0;
+}
+
+main h1, main p {
+    font-size: 12pt;
+    margin: 1em 0;
+    text-align: justify;
+}
+
+main p {
+    widows: 3;
+    orphans: 3;
+    hyphens: auto;
+}
+
+main .date {
+    margin-bottom: 2em;
+    text-align: right;
+}
+
+main h1 {
+    margin-bottom: 2em;
+}
+
+main p.comment {
+    font-size: 10pt;
+}
+
+.footer-wrapper {
+    padding: 0 20mm 0 25mm;
+    position: running(page-footer);
+    bottom: 0;
+    left: 0;
+    right: 0;
+}
+
+.pre-footer {
+    margin: 4.23mm 0;
+    font-size: 10pt;
+    display: flex;
+}
+
+.pre-footer > * {
+    flex: 5cm 1 1;
+}
+
+.pre-footer .date {
+    text-align: left;
+}
+
+.pre-footer .doc-id {
+    text-align: center;
+    font-style: italic;
+}
+
+.pre-footer .page {
+    text-align: right;
+}
+
+.pre-fotter .page::after {
+    content: "Seite 1 von 1";
+}
+
+footer {
+    font-size: 10pt;
+    border-top: 1pt solid black;
+    height: 25mm;
+    padding-top: 1mm;
+    text-align: center;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    table-layout: fixed;
+}
+
+table.delivery {
+    margin-bottom: 5mm;
+}
+
+table.delivery th {
+    font-weight: normal;
+    font-style: italic;
+    font-size: 10pt;
+}
+
+table.delivery th.main {
+    text-align: left;
+}
+
+table.delivery tr.main td {
+    font-weight: bold;
+    padding-top: 2mm;
+}
+
+table.delivery tbody tr:not(.main) td {
+    font-size: 8pt;
+}
+
+table.delivery tr.tight:not(.first) td {
+    padding-top: 0;
+    padding-bottom: 0;
+}
+
+table.delivery tr.tight.first td {
+    padding-bottom: 0;
+}
+
+table.delivery tr.tight:has(+ tr:not(.tight)) td {
+    padding-bottom: 0.5mm !important;
+}
+
+table.delivery tr.sum {
+    border-top: 1pt solid black;
+}
+
+table.delivery tr.sum td {
+    padding-top: 1mm;
+}
+
+table.delivery-stats {
+    font-size: 8pt;
+}
+
+table.delivery-stats.expanded th,
+table.delivery-stats.expanded td {
+    padding: 0.25mm 0;
+}
+
+table.delivery-stats:not(.expanded) th,
+table.delivery-stats:not(.expanded) td {
+    padding: 0.125mm 0;
+}
+
+table.delivery-stats:not(.expanded) tr.optional {
+    display: none;
+}
+
+table.delivery-stats thead th {
+    font-weight: normal;
+    font-style: italic;
+    text-align: right;
+}
+
+table.delivery-stats thead th:first-child {
+    text-align: left;
+}
+
+table.delivery-stats.expanded tbody {
+    font-size: 10pt;
+}
+
+table.delivery-stats td {
+    text-align: right;
+}
+
+table.delivery-stats tbody th {
+    font-weight: normal;
+    font-style: italic;
+    text-align: left;
+}
+
+.hidden {
+    visibility: hidden;
+}
+
+main .bottom {
+    bottom: 0;
+    position: absolute;
+    width: calc(100% - 25mm - 20mm);
+}
+
+main .signatures {
+    width: 100%;
+    display: flex;
+    justify-content: space-around;
+    margin: 20mm 0 2mm 0;
+}
+
+main .signatures > * {
+    width: 5cm;
+    border-top: 1pt solid black;
+    padding-top: 1mm;
+    text-align: center;
+    font-size: 10pt;
+}
+
+hr {
+    border: none;
+    border-top: 1pt solid black;
+    margin: 5mm 0;
+}
+
+hr.page-break {
+    display: none;
+    break-after: page;
+}
+
+@page {
+    size: A4;
+    margin: 25mm 0 35mm 0;
+    @bottom-center {
+        content: element(page-footer);
+    }
+}
+
+@media screen {
+    body, header, .footer-wrapper {
+        width: 210mm;
+    }
+    header, .address-wrapper, aside, main {
+        border: 1pt solid lightgray;
+    }
+    .m1, .m2, .m3 {display: none;}
+    header {top: 0;}
+    .spacing {height: 45mm;}
+    .main-wrapper {
+        margin-bottom: 40mm;
+    }
+    .footer-wrapper {
+        position: fixed;
+        bottom: 0;
+        left: 0;
+        right: 0;
+        background: white;
+    }
+}
+
+@media print {
+    .page::after {
+        content: "Seite " counter(page) " von " counter(pages);
+    }
+    .footer-wrapper {
+        display: none;
+    }
+}

Elwig/Elwig.csproj

@@ -1,12 +1,14 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net7.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWPF>true</UseWPF>
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <ApplicationIcon>elwig.ico</ApplicationIcon>
+    <Version>0.1.0</Version>
+    <SatelliteResourceLanguages>de-AT</SatelliteResourceLanguages>
   </PropertyGroup>
 
   <ItemGroup>
@@ -14,24 +16,26 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Extended.Wpf.Toolkit" Version="4.5.1" />
     <PackageReference Include="ini-parser" Version="2.5.2" />
-    <PackageReference Include="Microsoft.AspNetCore.Razor" Version="2.2.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.16" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="7.0.5" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.5" />
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.1722.45" />
+    <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.21" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="7.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.10" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.1938.49" />
     <PackageReference Include="PdfSharp" Version="1.50.5147" />
-    <PackageReference Include="PuppeteerSharp" Version="9.1.0" />
+    <PackageReference Include="PuppeteerSharp" Version="11.0.2" />
     <PackageReference Include="RazorLight" Version="2.3.1" />
+    <PackageReference Include="ScottPlot.WPF" Version="4.1.67" />
+    <PackageReference Include="System.IO.Ports" Version="7.0.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="7.0.0" />
   </ItemGroup>
 
   <ItemGroup>
-    <EmbeddedResource Include="Documents/Style.css.cshtml" />
-    <EmbeddedResource Include="Documents/Document.cshtml" />
-    <EmbeddedResource Include="Documents/BusinessDocument.cshtml" />
-    <EmbeddedResource Include="Documents/BusinessLetter.cshtml" />
+    <Resource Include="elwig.png" />
   </ItemGroup>
 
+  <Target Name="PreBuild" BeforeTargets="PreBuildEvent">
+    <Exec Command="call fetch-resources.bat" />
+  </Target>
+
 </Project>

Elwig/Helpers/AppDbContext.cs

@@ -1,31 +1,229 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using Elwig.Models;
+using System.Linq;
+using System.Threading.Tasks;
+using System.IO;
+using System;
+using System.Windows;
+using Microsoft.Extensions.Logging;
+using Microsoft.Data.Sqlite;
+using System.Text.RegularExpressions;
+using System.Collections.Generic;
 
 namespace Elwig.Helpers {
     public class AppDbContext : DbContext {
 
-        public DbSet<Country> Countries { get; set; }
-        public DbSet<Member> Members { get; set; }
-        public DbSet<BillingAddress> BillingAddresses { get; set; }
-        public DbSet<AT_Gem> Gemeinden { get; set; }
-        public DbSet<AT_Kg> Katastralgemeinden { get; set; }
-        public DbSet<AT_Ort> Orte { get; set; }
-        public DbSet<AT_PlzDest> Postleitzahlen { get; set; }
-        public DbSet<PostalDest> PostalDestinations { get; set; }
-        public DbSet<Branch> Branches { get; set; }
-        public DbSet<WbKg> WbKgs { get; set; }
-        public DbSet<WbRd> WbRde { get; set; }
-        public DbSet<AreaCommitment> AreaCommitments { get; set; }
-        public DbSet<Contract> Contracts { get; set; }
-        public DbSet<WineAttr> WineAttributes { get; set; }
-        public DbSet<WineCult> WineCultivations { get; set; }
-        public DbSet<WineQual> WineQualities { get; set; }
-        public DbSet<WineVar> WineVarieties { get; set; }
+        public DbSet<Country> Countries { get; private set; }
+        public DbSet<Currency> Currencies { get; private set; }
+        public DbSet<AT_Gem> Gemeinden { get; private set; }
+        public DbSet<AT_Kg> Katastralgemeinden { get; private set; }
+        public DbSet<AT_Ort> Orte { get; private set; }
+        public DbSet<AT_Plz> Postleitzahlen { get; private set; }
+        public DbSet<AT_PlzDest> PlzDestinations { get; private set; }
+        public DbSet<PostalDest> PostalDestinations { get; private set; }
+        public DbSet<WineOrigin> WineOrigins { get; private set; }
+        public DbSet<WineQualLevel> WineQualityLevels { get; private set; }
+        public DbSet<WineVar> WineVarieties { get; private set; }
+
+        public DbSet<ClientParam> ClientParameters { get; private set; }
+        public DbSet<WbKg> WbKgs { get; private set; }
+        public DbSet<WbRd> WbRde { get; private set; }
+        public DbSet<WineAttr> WineAttributes { get; private set; }
+        public DbSet<WineCult> WineCultivations { get; private set; }
+        public DbSet<Branch> Branches { get; private set; }
+        public DbSet<AreaComType> AreaCommitmentTypes { get; private set; }
+        public DbSet<Member> Members { get; private set; }
+        public DbSet<BillingAddr> BillingAddresses { get; private set; }
+        public DbSet<MemberTelNr> MemberTelephoneNrs { get; private set; }
+        public DbSet<AreaCom> AreaCommitments { get; private set; }
+        public DbSet<Season> Seasons { get; private set; }
+        public DbSet<Modifier> Modifiers { get; private set; }
+        public DbSet<Delivery> Deliveries { get; private set; }
+        public DbSet<DeliveryPart> DeliveryParts { get; private set; }
+        public DbSet<DeliveryPartAttr> DeliveryPartAttributes { get; private set; }
+        public DbSet<DeliveryPartModifier> DeliveryPartModifiers { get; private set; }
+        public DbSet<PaymentVar> PaymentVariants { get; private set; }
+
+        private readonly StreamWriter? LogFile = null;
+        public static DateTime LastWriteTime => File.GetLastWriteTime(App.Config.DatabaseFile);
+        public DateTime SavedLastWriteTime { get; private set; }
+        public bool HasBackendChanged => SavedLastWriteTime != LastWriteTime;
+
+        public static string ConnectionString => $"Data Source=\"{App.Config.DatabaseFile}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default";
+
+        public AppDbContext() {
+            if (App.Config.DatabaseLog != null) {
+                try {
+                    var file = File.Open(App.Config.DatabaseLog, FileMode.Append, FileAccess.Write, FileShare.Write);
+                    LogFile = new(file) {
+                        AutoFlush = true
+                    };
+                } catch (Exception e) {
+                    MessageBox.Show($"Unable to open database log file:\n\n{e.Message}", "Database Log", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+            }
+            SavedLastWriteTime = LastWriteTime;
+            SavedChanges += OnSavedChanges;
+        }
+
+        public static SqliteConnection Connect() {
+            var cnx = new SqliteConnection(ConnectionString);
+            cnx.CreateFunction<string, string?, bool?>("REGEXP", (pattern, value) => value == null ? null : Regex.Match(value, pattern).Success, true);
+            cnx.Open();
+            return cnx;
+        }
+
+        public static async Task<SqliteConnection> ConnectAsync() {
+            var cnx = new SqliteConnection(ConnectionString);
+            cnx.CreateFunction<string, string?, bool?>("REGEXP", (pattern, value) => value == null ? null : Regex.Match(value, pattern).Success, true);
+            await cnx.OpenAsync();
+            return cnx;
+        }
 
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) {
-            optionsBuilder.UseSqlite($"Data Source=\"{App.Config.DatabasePath}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default");
+            optionsBuilder.UseSqlite(ConnectionString);
             optionsBuilder.UseLazyLoadingProxies();
+            optionsBuilder.LogTo(Log, LogLevel.Information);
             base.OnConfiguring(optionsBuilder);
         }
+
+        public override void Dispose() {
+            base.Dispose();
+            LogFile?.Dispose();
+            GC.SuppressFinalize(this);
+        }
+
+        private void OnSavedChanges(object? sender, SavedChangesEventArgs evt) {
+            SavedLastWriteTime = LastWriteTime;
+        }
+
+        protected void Log(string msg) {
+            LogFile?.WriteLine(msg);
+        }
+
+        public async Task<bool> MgNrExists(int mgnr) {
+            return await Members.FindAsync(mgnr) != null;
+        }
+
+        public async Task<bool> FbNrExists(int fbnr) {
+            return await AreaCommitments.FindAsync(fbnr) != null;
+        }
+
+        public async Task<bool> SortIdExists(string sortId) {
+            return await WineVarieties.FindAsync(sortId) != null;
+        }
+
+        public async Task<bool> AttrIdExists(string attrId) {
+            return await WineAttributes.FindAsync(attrId) != null;
+        }
+
+        public async Task<int> NextMgNr() {
+            int c = await Members.Select(m => m.MgNr).MinAsync();
+            (await Members.OrderBy(m => m.MgNr).Select(m => m.MgNr).ToListAsync())
+                .ForEach(a => { if (a <= c + 1000) c = a; });
+            return c + 1;
+        }
+
+        public async Task<int> NextFbNr() {
+            int c = await AreaCommitments.Select(ac => ac.FbNr).MinAsync();
+            (await AreaCommitments.OrderBy(ac => ac.FbNr).Select(ac => ac.FbNr).ToListAsync())
+                .ForEach(a => { if (a <= c + 1000) c = a; });
+            return c + 1;
+        }
+
+        public async Task<int> NextLNr(DateOnly date) {
+            var dateStr = date.ToString("yyyy-MM-dd");
+            int c = 0;
+            (await Deliveries.Where(d => d.DateString == dateStr).Select(d => d.LNr).ToListAsync())
+                .ForEach(a => { if (a <= c + 100) c = a; });
+            return c + 1;
+        }
+
+        public async Task<int> NextDId(int year) {
+            int c = 0;
+            (await Deliveries.Where(d => d.Year == year).Select(d => d.DId).ToListAsync())
+                .ForEach(a => { if (a <= c + 100) c = a; });
+            return c + 1;
+        }
+
+        public async Task<int> NextDPNr(int year, int did) {
+            int c = 0;
+            (await DeliveryParts.Where(p => p.Year == year && p.DId == did).Select(d => d.DPNr).ToListAsync())
+                .ForEach(a => { if (a <= c + 100) c = a; });
+            return c + 1;
+        }
+
+        public async Task<WineQualLevel> GetWineQualityLevel(double kmw) {
+            return await WineQualityLevels
+                .Where(q => !q.IsPredicate && (q.MinKmw == null || q.MinKmw <= kmw))
+                .OrderBy(q => q.MinKmw)
+                .LastOrDefaultAsync();
+        }
+
+        public async Task UpdateDeliveryPartAttributes(DeliveryPart part, IEnumerable<WineAttr> attributes) {
+            foreach (var a in WineAttributes) {
+                var attr = part.PartAttributes.Where(pa => pa.AttrId == a.AttrId).FirstOrDefault();
+                if (attributes.Contains(a)) {
+                    DeliveryPartAttr dpa = attr ?? this.CreateProxy<DeliveryPartAttr>();
+                    dpa.Year = part.Year;
+                    dpa.DId = part.DId;
+                    dpa.DPNr = part.DPNr;
+                    dpa.AttrId = a.AttrId;
+                    if (attr == null) {
+                        await AddAsync(dpa);
+                    } else {
+                        Update(dpa);
+                    }
+                } else {
+                    if (attr != null) {
+                        Remove(attr);
+                    }
+                }
+            }
+        }
+
+        public async Task UpdateDeliveryPartModifiers(DeliveryPart part, IEnumerable<Modifier> modifiers) {
+            foreach (var m in Modifiers.Where(m => m.Year == part.Year)) {
+                var mod = part.PartModifiers.Where(pa => pa.ModId == m.ModId).FirstOrDefault();
+                if (modifiers.Contains(m)) {
+                    DeliveryPartModifier dpm = mod ?? this.CreateProxy<DeliveryPartModifier>();
+                    dpm.Year = part.Year;
+                    dpm.DId = part.DId;
+                    dpm.DPNr = part.DPNr;
+                    dpm.ModId = m.ModId;
+                    if (mod == null) {
+                        await AddAsync(dpm);
+                    } else {
+                        Update(dpm);
+                    }
+                } else {
+                    if (mod != null) {
+                        Remove(mod);
+                    }
+                }
+            }
+        }
+
+        public async Task<IEnumerable<(string, string, int, int, int)>> GetMemberBuckets(Member m, int year) {
+            using var cnx = await ConnectAsync();
+            var (rights, obligations) = await Billing.Billing.GetMemberRightsObligations(m.MgNr, year, cnx);
+            var buckets = await Billing.Billing.GetMemberBucketWeights(m.MgNr, year, cnx);
+
+            var list = new List<(string, string, int, int, int)>();
+            foreach (var id in rights.Keys.Union(obligations.Keys).Union(buckets.Keys)) {
+                var s = await WineVarieties.FindAsync(id[..2]);
+                var attrIds = id[2..];
+                var a = await WineAttributes.Where(a => attrIds.Contains(a.AttrId)).ToListAsync();
+                var name = (s?.Name ?? "") + (a.Count > 0 ? $" ({string.Join(" / ", a.Select(a => a.Name))})" : "");
+                list.Add((
+                    id, name,
+                    rights.TryGetValue(id, out var v1) ? v1 : 0,
+                    obligations.TryGetValue(id, out var v2) ? v2 : 0,
+                    buckets.TryGetValue(id, out var v3) ? v3 : 0
+                ));
+            }
+
+            return list;
+        }
     }
 }

Elwig/Helpers/Billing/Billing.cs

@@ -0,0 +1,130 @@
+using Microsoft.Data.Sqlite;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Billing {
+    public class Billing {
+
+        private readonly int Year;
+        private readonly int AvNr;
+        private readonly AppDbContext Context;
+        private readonly Dictionary<string, string> Attributes;
+        private readonly Dictionary<string, (decimal?, decimal?)> Modifiers;
+        private readonly Dictionary<string, (string, string?, string?, string?, int?, int?, decimal?)> AreaComTypes;
+
+        public Billing(int year, int avnr) {
+            Year = year;
+            AvNr = avnr;
+            Context = new AppDbContext();
+            Attributes = Context.WineAttributes.ToDictionary(a => a.AttrId, a => a.Name);
+            Modifiers = Context.Modifiers.Where(m => m.Year == Year).ToDictionary(m => m.ModId, m => (m.Abs, m.Rel));
+            AreaComTypes = Context.AreaCommitmentTypes.ToDictionary(v => v.VtrgId, v => (v.SortId, v.AttrId1, v.AttrId2, v.Discriminator, v.MinKgPerHa, v.MaxKgPerHa, v.PenaltyAmount));
+        }
+
+        protected async Task DeleteInDb() {
+            using var cnx = await AppDbContext.ConnectAsync();
+            using (var cmd = cnx.CreateCommand()) {
+                cmd.CommandText = $"DELETE FROM payment_delivery_part WHERE (year, avnr) = ({Year}, {AvNr})";
+                await cmd.ExecuteNonQueryAsync();
+            }
+            using (var cmd = cnx.CreateCommand()) {
+                cmd.CommandText = $"DELETE FROM payment_member WHERE (year, avnr) = ({Year}, {AvNr})";
+                await cmd.ExecuteNonQueryAsync();
+            }
+        }
+
+        public async Task Calculate() {
+            await DeleteInDb();
+            var tasks = new List<Task>();
+            foreach (var mgnr in Context.Members.Select(m => m.MgNr)) {
+                tasks.Add(Task.Run(() => CalculateMember(mgnr)));
+            }
+            await Task.WhenAll(tasks);
+        }
+
+        public static async Task<(Dictionary<string, int>, Dictionary<string, int>)> GetMemberRightsObligations(int mgnr, int year, SqliteConnection cnx) {
+            var rights = new Dictionary<string, int>();
+            var obligations = new Dictionary<string, int>();
+
+            using var cmd = cnx.CreateCommand();
+            cmd.CommandText = $"""
+                SELECT t.vtrgid,
+                       SUM(COALESCE(area * min_kg_per_ha, 0)) / 10000 AS min_kg,
+                       SUM(COALESCE(area * max_kg_per_ha, 0)) / 10000 AS max_kg
+                FROM area_commitment c
+                JOIN area_commitment_type t ON t.vtrgid = c.vtrgid
+                WHERE mgnr = {mgnr} AND (year_from IS NULL OR year_from <= {year}) AND (year_to IS NULL OR year_to >= {year})
+                GROUP BY t.vtrgid
+                ORDER BY LENGTH(t.vtrgid) DESC, t.vtrgid
+                """;
+
+            var reader = await cmd.ExecuteReaderAsync();
+            while (await reader.ReadAsync()) {
+                var vtrgid = reader.GetString(0);
+                obligations[vtrgid] = reader.GetInt32(1);
+                rights[vtrgid] = reader.GetInt32(2);
+            }
+
+            return (rights, obligations);
+        }
+
+        public static async Task<Dictionary<string, int>> GetMemberBucketWeights(int mgnr, int year, SqliteConnection cnx) {
+            var buckets = new Dictionary<string, int>();
+
+            using var cmd = cnx.CreateCommand();
+            cmd.CommandText = $"""
+                SELECT bucket, weight
+                FROM v_bucket
+                WHERE (year, mgnr) = ({year}, {mgnr})
+                """;
+
+            var reader = await cmd.ExecuteReaderAsync();
+            while (await reader.ReadAsync()) {
+                var bucket = reader.GetString(0);
+                buckets[bucket] = reader.GetInt32(1);
+            }
+
+            return buckets;
+        }
+
+        protected async Task CalculateMember(int mgnr) {
+            using var cnx = await AppDbContext.ConnectAsync();
+            var (rights, obligations) = await GetMemberRightsObligations(mgnr, Year, cnx);
+
+            var deliveries = new List<(int, int, string, int, double, string, string[], string[])>();
+            using (var cmd = cnx.CreateCommand()) {
+                cmd.CommandText = $"""
+                    SELECT did, dpnr, sortid, weight, kmw, qualid, attributes, modifiers
+                    FROM v_delivery
+                    WHERE (year, mgnr) = ({Year}, {mgnr})
+                    ORDER BY kmw DESC, weight DESC, did, dpnr
+                    """;
+                var reader = await cmd.ExecuteReaderAsync();
+                while (await reader.ReadAsync()) {
+                    deliveries.Add((
+                        reader.GetInt32(0), reader.GetInt32(1), reader.GetString(2), reader.GetInt32(3),
+                        reader.GetDouble(4), reader.GetString(5), reader.GetString(6).Split(","), reader.GetString(7).Split(",")
+                    ));
+                }
+            }
+
+            foreach (var (did, dpnr, sortid, weight, kmw, qualid, attributes, modifiers) in deliveries) {
+                if (qualid == "WEI" || qualid == "RSW" || qualid == "LDW") {
+                    // Nicht mindestens Qualitätswein (QUW)
+                    using var cmd = cnx.CreateCommand();
+                    // TODO
+                    cmd.CommandText = $"""
+                        INSERT INTO payment_delivery_part (year, did, dpnr, avnr, mod_abs, mod_rel, )
+                        VALUES ({Year}, {did}, {dpnr}, {AvNr}, )
+                        """;
+                    await cmd.ExecuteNonQueryAsync();
+                    continue;
+                }
+
+                // TODO
+            }
+
+        }
+    }
+}

Elwig/Helpers/ClientParameters.cs

@@ -0,0 +1,139 @@
+using Elwig.Models;
+using Microsoft.Data.Sqlite;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers {
+    public class ClientParameters {
+
+        public enum Type { Matzen, GWK };
+
+        public bool IsMatzen => Client == Type.Matzen;
+        public bool IsGWK => Client == Type.GWK;
+
+        public string NameToken;
+        public string NameShort;
+        public string Name;
+        public string? NameSuffix;
+        public string NameType;
+        public string NameFull => NameSuffix == null ? $"{Name} {NameType}" : $"{Name}, {NameSuffix}, {NameType}";
+        public Type? Client;
+
+        public PostalDest PostalDest {
+            set {
+                Plz = value.AtPlz.Plz;
+                Ort = value.AtPlz.Ort.Name;
+            }
+        }
+        public int Plz;
+        public string Ort;
+        public string Address;
+        public string Sender1 => $"{NameShort} | {Address} | {Plz} {Ort}";
+        public string Sender2;
+
+        public string? Iban;
+        public string? Bic;
+        public string? UstIdNr;
+        public string? LfbisNr;
+
+        public string? PhoneNr;
+        public string? FaxNr;
+        public string? EmailAddress;
+        public string? Website;
+
+        public int DeliveryObligation;
+        public int DeliveryRight;
+        public decimal VatNormal;
+        public decimal VatReduced;
+        public decimal VatFlatRate;
+
+        public string? TextDeliveryNote;
+
+        public ClientParameters(AppDbContext ctx) : this(ctx.ClientParameters.ToDictionary(e => e.Param, e => e.Value)) { }
+
+        public ClientParameters(Dictionary<string, string?> parameters) {
+            try {
+                NameToken = parameters["CLIENT_NAME_TOKEN"] ?? throw new KeyNotFoundException();
+                NameShort = parameters["CLIENT_NAME_SHORT"] ?? throw new KeyNotFoundException();
+                Name = parameters["CLIENT_NAME"] ?? throw new KeyNotFoundException();
+                NameSuffix = parameters.GetValueOrDefault("CLIENT_NAME_SUFFIX");
+                NameType = parameters["CLIENT_NAME_TYPE"] ?? throw new KeyNotFoundException();
+                switch (Name) {
+                    case "Winzergenossenschaft für Matzen und Umgebung": Client = Type.Matzen; break;
+                    case "Winzerkeller im Weinviertel": Client = Type.GWK; break;
+                };
+
+                Plz = int.Parse(parameters["CLIENT_PLZ"] ?? "");
+                Ort = parameters["CLIENT_ORT"] ?? throw new KeyNotFoundException();
+                Address = parameters["CLIENT_ADDRESS"] ?? throw new KeyNotFoundException();
+                PhoneNr = parameters.GetValueOrDefault("CLIENT_PHONE");
+                FaxNr = parameters.GetValueOrDefault("CLIENT_FAX");
+                EmailAddress = parameters.GetValueOrDefault("CLIENT_EMAIL");
+                Website = parameters.GetValueOrDefault("CLIENT_WEBSITE");
+                LfbisNr = parameters.GetValueOrDefault("CLIENT_LFBISNR");
+                UstIdNr = parameters.GetValueOrDefault("CLIENT_USTIDNR");
+                Bic = parameters.GetValueOrDefault("CLIENT_BIC");
+                Iban = parameters.GetValueOrDefault("CLIENT_IBAN");
+
+                DeliveryObligation = int.Parse(parameters["DELIVERY_OBLIGATION"] ?? "");
+                DeliveryRight = int.Parse(parameters["DELIVERY_RIGHT"] ?? "");
+                VatNormal = decimal.Parse((parameters["VAT_NORMAL"] ?? "").Replace(".", ","));
+                VatReduced = decimal.Parse((parameters["VAT_REDUCED"] ?? "").Replace(".", ","));
+                VatFlatRate = decimal.Parse((parameters["VAT_FLATRATE"] ?? "").Replace(".", ","));
+
+                Sender2 = parameters.GetValueOrDefault("DOCUMENT_SENDER") ?? "";
+                TextDeliveryNote = parameters.GetValueOrDefault("TEXT_DELIVERYNOTE");
+            } catch {
+                throw new KeyNotFoundException();
+            }
+        }
+
+        private IEnumerable<(string, string?)> GetParamValues() {
+            return new (string, string?)[] {
+                ("CLIENT_NAME_TOKEN", NameToken),
+                ("CLIENT_NAME_SHORT", NameShort),
+                ("CLIENT_NAME", Name),
+                ("CLIENT_NAME_SUFFIX", NameSuffix),
+                ("CLIENT_NAME_TYPE", NameType),
+                ("CLIENT_PLZ", Plz.ToString()),
+                ("CLIENT_ORT", Ort),
+                ("CLIENT_ADDRESS", Address),
+                ("CLIENT_PHONE", PhoneNr),
+                ("CLIENT_FAX", FaxNr),
+                ("CLIENT_EMAIL", EmailAddress),
+                ("CLIENT_WEBSITE", Website),
+                ("CLIENT_LFBISNR", LfbisNr),
+                ("CLIENT_USTIDNR", UstIdNr),
+                ("CLIENT_BIC", Bic),
+                ("CLIENT_IBAN", Iban),
+                ("DELIVERY_OBLIGATION", DeliveryObligation.ToString()),
+                ("DELIVERY_RIGHT", DeliveryRight.ToString()),
+                ("VAT_NORMAL", VatNormal.ToString().Replace(",", ".")),
+                ("VAT_REDUCED", VatReduced.ToString().Replace(",", ".")),
+                ("VAT_FLATRATE", VatFlatRate.ToString().Replace(",", ".")),
+                ("DOCUMENT_SENDER", Sender2),
+                ("TEXT_DELIVERYNOTE", TextDeliveryNote),
+            };
+        }
+
+        public async Task UpdateValues() {
+            using var cnx = await AppDbContext.ConnectAsync();
+            using var cmd = cnx.CreateCommand();
+            var pv = GetParamValues();
+            cmd.CommandText = "INSERT INTO client_parameter (param, value) VALUES " +
+                string.Join(", ", pv.Select((pv, i) => $"(@p{i}, " + (pv.Item2 != null ? $"@v{i}" : "NULL") + ")")) +
+                " ON CONFLICT DO UPDATE SET value = excluded.value";
+
+            int i = 0;
+            foreach (var (p, v) in pv) {
+                cmd.Parameters.Add(new SqliteParameter($"@p{i}", p));
+                if (v != null)
+                    cmd.Parameters.Add(new SqliteParameter($"@v{i}", v));
+                i++;
+            }
+
+            await cmd.ExecuteNonQueryAsync();
+        }
+    }
+}

Elwig/Helpers/Config.cs

@@ -1,4 +1,6 @@
-using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
 using System.Text;
 using IniParser;
 using IniParser.Model;
@@ -7,10 +9,15 @@ namespace Elwig.Helpers {
     public class Config {
 
         private readonly string FileName;
-        public string DatabasePath;
+        public string DatabaseFile = App.DataPath + "database.sqlite3";
+        public string? DatabaseLog = null;
+        public string? Branch = null;
+        public IList<string?[]> Scales;
+        private readonly List<string?[]> ScaleList = new();
 
         public Config(string filename) {
             FileName = filename;
+            Scales = ScaleList;
             Read();
         }
 
@@ -21,17 +28,60 @@ namespace Elwig.Helpers {
                 ini = parser.ReadFile(FileName, Encoding.UTF8);
             } catch {}
 
-            if (ini == null || !ini.TryGetKey("database.path", out string db)) {
-                DatabasePath = App.DataPath + "database.sqlite3";
-            } else if (db.Length > 1 && db[1] == ':') {
-                DatabasePath = db;
+            if (ini == null || !ini.TryGetKey("database.file", out string db)) {
+                DatabaseFile = App.DataPath + "database.sqlite3";
+            } else if (db.Length > 1 && (db[1] == ':' || db[0] == '/' || db[0] == '\\')) {
+                DatabaseFile = db;
             } else {
-                DatabasePath = App.DataPath + db;
+                DatabaseFile = App.DataPath + db;
+            }
+
+            if (ini == null || !ini.TryGetKey("database.log", out string log)) {
+                DatabaseLog = null;
+            } else if (log.Length > 1 && (log[1] == ':' || log[0] == '/' || log[0] == '\\')) {
+                DatabaseLog = log;
+            } else {
+                DatabaseLog = App.DataPath + log;
+            }
+
+            if (ini == null || !ini.TryGetKey("general.branch", out string branch)) {
+                Branch = null;
+            } else {
+                Branch = branch;
+            }
+
+            ScaleList.Clear();
+            Scales = ScaleList;
+            if (ini != null) {
+                foreach (var s in ini.Sections.Where(s => s.SectionName.StartsWith("scale."))) {
+                    string? scaleLog = null;
+                    if (s.Keys["log"] != null) {
+                        scaleLog = s.Keys["log"];
+                        if (scaleLog.Length <= 1 || (scaleLog[1] != ':' && scaleLog[0] != '/' && scaleLog[0] != '\\')) {
+                            scaleLog = App.DataPath + scaleLog;
+                        }
+                    }
+                    ScaleList.Add(new string?[] {
+                        s.SectionName[6..], s.Keys["type"], s.Keys["model"], s.Keys["connection"],
+                        s.Keys["empty"], s.Keys["filling"], s.Keys["limit"], scaleLog
+                    });
+                }
             }
         }
 
         public void Write() {
-            throw new NotImplementedException();
+            using var file = new StreamWriter(FileName, false, Encoding.UTF8);
+            file.Write($"\r\n[general]\r\n");
+            if (Branch != null) file.Write($"branch = {Branch}\r\n");
+            file.Write($"\r\n[database]\r\nfile = {DatabaseFile}\r\n");
+            if (DatabaseLog != null) file.Write($"log = {DatabaseLog}\r\n");
+            foreach (var s in ScaleList) {
+                file.Write($"\r\n[scale.{s[0]}]\r\ntype = {s[1]}\r\nmodel = {s[2]}\r\nconnection = {s[3]}\r\n");
+                if (s[4] != null) file.Write($"empty = {s[4]}\r\n");
+                if (s[5] != null) file.Write($"filling = {s[5]}\r\n");
+                if (s[6] != null) file.Write($"limit = {s[6]}\r\n");
+                if (s[7] != null) file.Write($"log = {s[7]}\r\n");
+            }
         }
     }
 }

Elwig/Helpers/ControlUtils.cs

@@ -0,0 +1,223 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Media;
+
+namespace Elwig.Helpers {
+    public class ControlUtils {
+
+        public enum RenewSourceDefault {
+            None,
+            IfOnly,
+            First
+        }
+
+        private static void SetControlBrush(Control input, Brush brush) {
+            if (input is ComboBox cb) {
+                var border = GetComboBoxBorder(cb);
+                if (border != null) border.BorderBrush = brush;
+            } else {
+                input.BorderBrush = brush;
+            }
+        }
+
+        public static void SetInputNotDefault(Control input) {
+            SetControlBrush(input, Brushes.Gold);
+        }
+
+        public static void SetInputChanged(Control input) {
+            SetControlBrush(input, Brushes.Orange);
+        }
+
+        public static void SetInputInvalid(Control input) {
+            SetControlBrush(input, Brushes.Red);
+        }
+
+        public static void ClearInputState(Control input) {
+            if (input is ComboBox cb) {
+                GetComboBoxBorder(cb)?.ClearValue(Border.BorderBrushProperty);
+            } else {
+                input.ClearValue(Control.BorderBrushProperty);
+            }
+        }
+
+        private static Border? GetComboBoxBorder(ComboBox cb) {
+            var toggleButton = cb.Template.FindName("toggleButton", cb) as ToggleButton;
+            return toggleButton?.Template.FindName("templateRoot", toggleButton) as Border;
+        }
+
+        public static IEnumerable<T> FindAllChildren<T>(DependencyObject depObj) where T : DependencyObject {
+            if (depObj == null)
+                yield return (T)Enumerable.Empty<T>();
+            foreach (var child in LogicalTreeHelper.GetChildren(depObj)) {
+                if (child == null) {
+                    continue;
+                } else if (child is T t) {
+                    yield return t;
+                } else if (child is DependencyObject childDepOpj) {
+                    foreach (T childOfChild in FindAllChildren<T>(childDepOpj)) {
+                        yield return childOfChild;
+                    }
+                }
+            }
+        }
+
+        public static IEnumerable<T> FindAllChildren<T>(DependencyObject depObj, IEnumerable<DependencyObject> exempt) where T : DependencyObject {
+            return FindAllChildren<T>(depObj).Where(c => !exempt.Contains(c));
+        }
+
+        public static T? FindNextSibling<T>(Control me) where T : DependencyObject {
+            var found = false;
+            foreach (var child in LogicalTreeHelper.GetChildren(me.Parent)) {
+                if (found && child is T c) {
+                    return c;
+                } else if (child == me) {
+                    found = true;
+                }
+            }
+            return null;
+        }
+
+        public static void RenewItemsSource(Selector selector, IEnumerable? source, Func<object?, object?> getId, SelectionChangedEventHandler? handler = null, RenewSourceDefault def = RenewSourceDefault.None) {
+            if (selector.ItemsSource == source)
+                return;
+            var selectedId = getId(selector.SelectedItem);
+            object? selItem = null;
+            if (selectedId != null && source != null)
+                selItem = source.Cast<object>().FirstOrDefault(i => selectedId.Equals(getId(i)));
+            if (source != null && selItem == null) {
+                if ((def == RenewSourceDefault.IfOnly && source.Cast<object>().Count() == 1) || def == RenewSourceDefault.First) {
+                    selItem = source.Cast<object>().First();
+                }
+            }
+            if (handler != null && selItem != null) selector.SelectionChanged -= handler;
+            selector.ItemsSource = source;
+            if (handler != null && selItem != null) selector.SelectionChanged += handler;
+            selector.SelectedItem = selItem;
+        }
+
+        public static void RenewItemsSource(Xceed.Wpf.Toolkit.Primitives.Selector selector, IEnumerable? source, Func<object?, object?> getId) {
+            if (selector.ItemsSource == source)
+                return;
+            var selectedIds = selector.SelectedItems.Cast<object>().Select(i => getId(i)).ToList();
+            selector.ItemsSource = source;
+            if (source != null) {
+                selector.SelectedItems.Clear();
+                foreach (var i in source.Cast<object>().Where(i => selectedIds.Contains(getId(i))))
+                    selector.SelectedItems.Add(i);
+            }
+        }
+
+        public static void RenewItemsSource(DataGrid dataGrid, IEnumerable? source, Func<object?, object?> getId, SelectionChangedEventHandler? handler = null, RenewSourceDefault def = RenewSourceDefault.None, bool keepSort = true) {
+            if (dataGrid.ItemsSource == source)
+                return;
+            var column = dataGrid.CurrentCell.Column;
+            var sortColumns = dataGrid.Columns.Select(c => c.SortDirection).ToList();
+            var sort = dataGrid.Items.SortDescriptions.ToList();
+            var selectedId = getId(dataGrid.SelectedItem);
+            object? selItem = null;
+            if (selectedId != null && source != null)
+                selItem = source.Cast<object>().FirstOrDefault(i => selectedId.Equals(getId(i)));
+            if (source != null && selItem == null) {
+                if ((def == RenewSourceDefault.IfOnly && source.Cast<object>().Count() == 1) || def == RenewSourceDefault.First) {
+                    selItem = source.Cast<object>().First();
+                }
+            }
+            if (handler != null && selItem != null) dataGrid.SelectionChanged -= handler;
+            dataGrid.ItemsSource = source;
+            if (handler != null && selItem != null) dataGrid.SelectionChanged += handler;
+            dataGrid.SelectedItem = selItem;
+            if (keepSort) {
+                for (int i = 0; i < dataGrid.Columns.Count; i++)
+                    dataGrid.Columns[i].SortDirection = sortColumns[i];
+                foreach (var s in sort)
+                    dataGrid.Items.SortDescriptions.Add(s);
+            }
+            if (dataGrid.SelectedItem != null && column != null)
+                dataGrid.CurrentCell = new(dataGrid.SelectedItem, column);
+        }
+
+        public static void RenewItemsSource(ListBox listBox, IEnumerable? source, Func<object?, object?> getId, SelectionChangedEventHandler? handler = null, RenewSourceDefault def = RenewSourceDefault.None) {
+            if (listBox.ItemsSource == source)
+                return;
+            var selectedId = getId(listBox.SelectedItem);
+            object? selItem = null;
+            if (selectedId != null && source != null)
+                selItem = source.Cast<object>().FirstOrDefault(i => selectedId.Equals(getId(i)));
+            if (source != null && selItem == null) {
+                if ((def == RenewSourceDefault.IfOnly && source.Cast<object>().Count() == 1) || def == RenewSourceDefault.First) {
+                    selItem = source.Cast<object>().FirstOrDefault();
+                }
+            }
+            if (handler != null && selItem != null) listBox.SelectionChanged -= handler;
+            listBox.ItemsSource = source;
+            if (handler != null && selItem != null) listBox.SelectionChanged += handler;
+            listBox.SelectedItem = selItem;
+        }
+
+        public static object? GetItemFromSource(IEnumerable source, Func<object?, object?> getId, object? id) {
+            if (source == null)
+                return null;
+            var items = source.Cast<object>();
+            var item = items.Where(i => getId(i)?.Equals(id) ?? false).FirstOrDefault();
+            if (item == null && items.Any(i => i is NullItem))
+                return items.Where(i => i is NullItem).First();
+            return item;
+        }
+
+        public static object? GetItemFromSource(IEnumerable source, object? item, Func<object?, object?> getId) {
+            return GetItemFromSource(source, getId, getId(item));
+        }
+
+        public static void SelectComboBoxItem(ComboBox cb, Func<object?, object?> getId, object? id) {
+            cb.SelectedItem = GetItemFromSource(cb.ItemsSource, getId, id);
+        }
+
+        public static void SelectComboBoxItem(ComboBox cb, object? item, Func<object?, object?> getId) {
+            SelectComboBoxItem(cb, getId, getId(item));
+        }
+
+        public static IEnumerable<object?> GetItemsFromSource(IEnumerable source, Func<object?, object?> getId, IEnumerable<object?> ids) {
+            if (source == null)
+                return Array.Empty<object>();
+            return source.Cast<object>().Where(i => ids.Any(c => c?.Equals(getId(i)) ?? false));
+        }
+
+        public static IEnumerable<object?> GetItemsFromSource(IEnumerable source, IEnumerable<object?>? items, Func<object?, object?> getId) {
+            if (items == null)
+                return Array.Empty<object>();
+            return GetItemsFromSource(source, getId, items.Select(i => getId(i)));
+        }
+
+        public static void SelectCheckComboBoxItems(Xceed.Wpf.Toolkit.CheckComboBox ccb, Func<object?, object?> getId, IEnumerable<object?>? ids) {
+            ccb.SelectedItems.Clear();
+            if (ids == null) return;
+            foreach (var id in ids)
+                ccb.SelectedItems.Add(GetItemFromSource(ccb.ItemsSource, getId, id));
+        }
+
+        public static void SelectCheckComboBoxItems(Xceed.Wpf.Toolkit.CheckComboBox ccb, IEnumerable<object>? items, Func<object?, object?> getId) {
+            SelectCheckComboBoxItems(ccb, getId, items?.Select(i => getId(i)));
+        }
+
+        public static object? GetInputValue(Control input) {
+            if (input is TextBox tb) {
+                return tb.Text;
+            } else if (input is ComboBox sb) {
+                return sb.SelectedItem;
+            } else if (input is Xceed.Wpf.Toolkit.CheckComboBox ccb) {
+                return ccb.SelectedItems.Cast<object>().ToArray();
+            } else if (input is CheckBox cb) {
+                return cb.IsChecked?.ToString();
+            } else if (input is RadioButton rb) {
+                return rb.IsChecked?.ToString();
+            } else {
+                return null;
+            }
+        }
+    }
+}

Elwig/Helpers/Export/Bki.cs

@@ -0,0 +1,4 @@
+namespace Elwig.Helpers.Export {
+    public class Bki {
+    }
+}

Elwig/Helpers/Export/Csv.cs

@@ -0,0 +1,4 @@
+namespace Elwig.Helpers.Export {
+    public class Csv {
+    }
+}

Elwig/Helpers/Export/Ebics.cs

@@ -0,0 +1,15 @@
+using Elwig.Models;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    public class Ebics : IBankingProvider {
+
+        public string FileExtension => "xml";
+
+        public Task Export(string filename, int avnr, IEnumerable<Member> members) {
+            throw new NotImplementedException();
+        }
+    }
+}

Elwig/Helpers/Export/Elba.cs

@@ -0,0 +1,15 @@
+using Elwig.Models;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    public class Elba : IBankingProvider {
+
+        public string FileExtension => "elba";
+
+        public Task Export(string filename, int avnr, IEnumerable<Member> members) {
+            throw new NotImplementedException();
+        }
+    }
+}

Elwig/Helpers/Export/IBankingProvider.cs

@@ -0,0 +1,24 @@
+using Elwig.Models;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    /// <summary>
+    /// Interface for exporting banking data
+    /// </summary>
+    public interface IBankingProvider {
+        /// <summary>
+        /// The default file extension of the exported files to be used (whithout a preceding ".")
+        /// </summary>
+        string FileExtension { get; }
+
+        /// <summary>
+        /// Export the member payment data of the given payment variant to the given file.
+        /// (The amount of the last payed variant is deducted from the calculated amount.)
+        /// </summary>
+        /// <param name="filename">The file to export the data to</param>
+        /// <param name="avnr">The number of the payment variant to export</param>
+        /// <param name="members">The members whose data to include in the export</param>
+        Task Export(string filename, int avnr, IEnumerable<Member> members);
+    }
+}

Elwig/Helpers/Gradation.cs

@@ -1,53 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Elwig.Helpers {
-    // 1 °KMW = 
-    // 1 °NM  = kg/100L = 10g/L
-    // 1 °Oe  = 
-    // 1 °Bé  =
-    // 1 °Bx  = g/100g (x Gramm Zucker pro 100 Gramm Flüssigkeit)
-    internal class Gradation {
-        /// <summary>
-        /// Gradation in mg/L.
-        /// </summary>
-        uint mgpl;
-
-        public Gradation(uint mgpl) {
-            this.mgpl = mgpl;
-        }
-
-        public static double relativeDensity(double todo) {
-            return 0;
-        }
-
-        public static double KmwToOe(double kmw) {
-            return 0;  // TODO
-        }
-
-        public static double OeToKmw(double oe) {
-            return 0;  // TODO
-        }
-
-        public static Gradation FromKmw(double kwm) {
-            return new Gradation(0);  // TODO
-        }
-
-        public static Gradation FromKmw(double kmw, double t) {
-            // The temperature can be ignored, because no volumetric unit is involved.
-            // 1 °KMW = 1g/100g
-            return FromKmw(kmw);
-        }
-
-        public static Gradation FromOe(double oe) {
-            return new Gradation(0);  // TODO
-        }
-
-        public static Gradation FromOe(double oe, double t) {
-            return null;
-        }
-    }
-}

Elwig/Helpers/NullItem.cs

@@ -0,0 +1,5 @@
+namespace Elwig.Helpers {
+    public class NullItem {
+        public static string Name => "- Keine Angabe -";
+    }
+}

Elwig/Helpers/TempFile.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.IO;
 
 namespace Elwig.Helpers {
@@ -8,7 +8,7 @@ namespace Elwig.Helpers {
 
         public TempFile() : this(null) { }
 
-        public TempFile(string? ext) : this(Path.Combine(Path.GetTempPath(), "Elwig"), ext) { }
+        public TempFile(string? ext) : this(App.TempPath, ext) { }
 
         public TempFile(string dir, string? ext) {
             FilePath = Path.Combine(dir, Path.GetRandomFileName().Replace(".", "") + (ext != null ? $".{ext}" : ""));

Elwig/Helpers/Utils.cs

@@ -1,75 +1,145 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
-using System.Windows.Media;
 using System.Windows;
-using System.Windows.Controls;
 using System.Diagnostics;
-using System.Windows.Controls.Primitives;
-using Microsoft.EntityFrameworkCore;
+using System.Text.RegularExpressions;
+using System.IO.Ports;
+using System.Net.Sockets;
+using Elwig.Dialogs;
+using System.Text;
+using System.Numerics;
+using Elwig.Models;
 
 namespace Elwig.Helpers {
-    public static class Utils {
-        public static void SetInputChanged(Control input) {
-            var brush = Brushes.Orange;
-            if (input is ComboBox cb) {
-                var border = GetComboBoxBorder(cb);
-                if (border != null)
-                    border.BorderBrush = brush;
-            } else {
-                input.BorderBrush = brush;
-            }
+    public static partial class Utils {
+
+        public static int CurrentYear => DateTime.Now.Year;
+        public static int CurrentNextSeason => DateTime.Now.Year - (DateTime.Now.Month <= 3 ? 1 : 0);
+        public static int CurrentLastSeason => DateTime.Now.Year - (DateTime.Now.Month <= 7 ? 1 : 0);
+        public static DateTime Today => (DateTime.Now.Hour >= 3) ? DateTime.Today : DateTime.Today.AddDays(-1);
+
+        public static readonly Regex SerialRegex = GeneratedSerialRegex();
+        public static readonly Regex TcpRegex = GeneratedTcpRegex();
+        public static readonly Regex PartialDateRegex = GeneratedPartialDateRegex();
+        public static readonly Regex FromToRegex = GeneratedFromToRegex();
+        public static readonly Regex FromToTimeRegex = GeneratedFromToTimeRegex();
+
+        [GeneratedRegex("^serial://([A-Za-z0-9]+):([0-9]+)(,([5-9]),([NOEMSnoems]),(0|1|1\\.5|2|))?$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedSerialRegex();
+
+        [GeneratedRegex("^tcp://([A-Za-z0-9._-]+):([0-9]+)$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedTcpRegex();
+
+        [GeneratedRegex(@"^(0?[1-9]|[12][0-9]|3[01])\.(0?[1-9]|1[0-2])\.$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedPartialDateRegex();
+
+        [GeneratedRegex(@"^([0-9]+([\.,][0-9]+)?)?-([0-9]+([\.,][0-9]+)?)?$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedFromToRegex();
+
+        [GeneratedRegex(@"^([0-9]{1,2}:[0-9]{2})?-([0-9]{1,2}:[0-9]{2})?$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedFromToTimeRegex();
+
+        private static readonly ushort[] Crc16ModbusTable = {
+            0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
+            0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
+            0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
+            0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
+            0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
+            0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
+            0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
+            0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
+            0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
+            0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
+            0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
+            0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
+            0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
+            0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
+            0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
+            0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
+            0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
+            0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
+            0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
+            0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
+            0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
+            0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
+            0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
+            0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
+            0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
+            0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
+            0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
+            0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
+            0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
+            0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
+            0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
+            0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040,
+        };
+
+        public static SerialPort OpenSerialConnection(string connection) {
+            var m = SerialRegex.Match(connection);
+            if (!m.Success)
+                throw new ArgumentException("Invalid connection string for scheme \"serial\"");
+
+            var stop = m.Groups[6].Value;
+            var parity = m.Groups[5].Value.ToUpper();
+            var data = m.Groups[4].Value;
+            var port = new SerialPort() {
+                PortName = m.Groups[1].Value,
+                BaudRate = int.Parse(m.Groups[2].Value),
+                Parity = parity == "E" ? Parity.Even :
+                         parity == "O" ? Parity.Odd :
+                         parity == "M" ? Parity.Mark :
+                         parity == "S" ? Parity.Space :
+                                         Parity.None,
+                DataBits = data == "" ? 8 : int.Parse(data),
+                StopBits = (StopBits)(stop == "" ? 1 : stop == "1.5" ? 3 : stop[0] - '0'),
+                Handshake = Handshake.None,
+                WriteTimeout = 250,
+                ReadTimeout = 11000,
+            };
+            port.Open();
+            return port;
         }
 
-        public static void SetInputInvalid(Control input) {
-            var brush = Brushes.Red;
-            if (input is ComboBox cb) {
-                var border = GetComboBoxBorder(cb);
-                if (border != null)
-                    border.BorderBrush = brush;
-            } else {
-                input.BorderBrush = brush;
-            }
-        }
+        public static TcpClient OpenTcpConnection(string connection) {
+            var m = TcpRegex.Match(connection);
+            if (!m.Success)
+                throw new ArgumentException("Invalid connection string for scheme \"tcp\"");
 
-        public static void ClearInputState(Control input) {
-            if (input is ComboBox cb) {
-                GetComboBoxBorder(cb)?.ClearValue(Border.BorderBrushProperty);
-            } else {
-                input.ClearValue(Control.BorderBrushProperty);
-            }
-        }
-
-        private static Border? GetComboBoxBorder(ComboBox cb) {
-            var toggleButton = cb.Template.FindName("toggleButton", cb) as ToggleButton;
-            return toggleButton?.Template.FindName("templateRoot", toggleButton) as Border;
-        }
-
-        public static IEnumerable<T> FindVisualChilds<T>(DependencyObject depObj) where T : DependencyObject {
-            if (depObj == null)
-                yield return (T)Enumerable.Empty<T>();
-            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObj); i++) {
-                DependencyObject ithChild = VisualTreeHelper.GetChild(depObj, i);
-                if (ithChild == null)
-                    continue;
-                if (ithChild is T t)
-                    yield return t;
-                foreach (T childOfChild in FindVisualChilds<T>(ithChild))
-                    yield return childOfChild;
-            }
-        }
-
-        public static IEnumerable<T> FindVisualChilds<T>(DependencyObject depObj, IEnumerable<DependencyObject> exempt) where T : DependencyObject {
-            return FindVisualChilds<T>(depObj).Where(c => !exempt.Contains(c));
+            var client = new TcpClient() {
+                SendTimeout = 250,
+                ReceiveTimeout = 11000,
+            };
+            client.Connect(m.Groups[1].Value, int.Parse(m.Groups[2].Value));
+            return client;
         }
 
         public static int Modulo(string a, int b) {
-            if (!a.All(char.IsDigit))
+            if (a.Length == 0 || !a.All(char.IsAsciiDigit)) {
                 throw new ArgumentException("First argument has to be a decimal string");
+            } else if (b < 2) {
+                throw new ArgumentException("Second argument has to be greater than 1");
+            }
             return a.Select(ch => ch - '0').Aggregate((sum, n) => (sum * 10 + n) % b);
         }
 
+        public static ushort CalcCrc16Modbus(byte[] data) {
+            // https://www.modbustools.com/modbus_crc16.htm
+            byte temp;
+            ushort crc = 0xFFFF;
+            foreach (byte b in data) {
+                temp = (byte)(b ^ crc);
+                crc >>= 8;
+                crc ^= Crc16ModbusTable[temp];
+            }
+            return crc;
+        }
+
+        public static ushort CalcCrc16Modbus(string data) {
+            return CalcCrc16Modbus(Encoding.ASCII.GetBytes(data));
+        }
+
         public static void RunBackground(string title, Func<Task> a) {
             Task.Run(async () => {
                 try {
@@ -87,26 +157,140 @@ namespace Elwig.Helpers {
             });
         }
 
-        public static async Task<bool> MgNrExists(AppDbContext ctx, int mgnr) {
-            return await ctx.Members.FindAsync(mgnr) != null;
+        public static double KmwToOe(double kmw) {
+            return Math.Round(kmw * (4.54 + 0.022 * kmw), 0);
         }
 
-        public static async Task<bool> VNrExists(AppDbContext ctx, int vnr) {
-            return await ctx.Contracts.FindAsync(vnr) != null;
+        public static double OeToKmw(double oe) {
+            return Math.Round((-4.54 + Math.Sqrt(4.54 * 4.54 - 4 * 0.022 * -oe)) / (2 * 0.022), 1);
         }
 
-        public static async Task<int> NextMgNr(AppDbContext ctx) {
-            int c = await ctx.Members.Select(m => m.MgNr).MinAsync();
-            (await ctx.Members.OrderBy(m => m.MgNr).Select(m => m.MgNr).ToListAsync())
-                .ForEach(a => { if (a <= c + 100) c = a; });
-            return c + 1;
+        public static decimal DecFromDb(long value, byte precision) {
+            bool neg = value < 0;
+            if (neg) value = -value;
+            return new((int)(value & 0xFFFFFFFF), (int)((value >> 32) & 0x7FFFFFFF), 0, neg, precision);
         }
 
-        public static async Task<int> NextVNr(AppDbContext ctx) {
-            int c = await ctx.Contracts.Select(co => co.VNr).MinAsync();
-            (await ctx.Contracts.OrderBy(co => co.VNr).Select(co => co.VNr).ToListAsync())
-                .ForEach(a => { if (a <= c + 100) c = a; });
-            return c + 1;
+        public static long DecToDb(decimal value, byte precision) {
+            return (long)decimal.Round(value * (decimal)Math.Pow(10, precision), 0);
         }
+
+        public static int GetAge(DateOnly birthday) {
+            var today = DateTime.Today;
+            var a = (today.Year * 100 + today.Month) * 100 + today.Day;
+            var b = (birthday.Year * 100 + birthday.Month) * 100 + birthday.Day;
+            return (a - b) / 10000;
+        }
+
+        public static int GetSearchScore(IEnumerable<string?> words, IEnumerable<string> searchKeywords) {
+            searchKeywords = searchKeywords.Where(s => s.Length >= 2 || (s.Length > 0 && s.All(c => char.IsAsciiDigit(c))));
+            if (!searchKeywords.Any())
+                return 0;
+
+            return words
+                .Select(w => {
+                    w = w?.ToLower();
+                    var p = w?.ToLower()?.Split(" ");
+                    if (w == null || p == null)
+                        return 0;
+
+                    var t1 = searchKeywords.Where(f => w == f).Select(f => f.Length).OrderDescending().FirstOrDefault(0);
+                    var t2 = searchKeywords.Where(f => p.Any(a => a == f)).Select(f => f.Length).OrderDescending().FirstOrDefault(0);
+                    var t3 = searchKeywords.Where(f => p.Any(a => a.StartsWith(f))).Select(f => f.Length).OrderDescending().FirstOrDefault(0);
+                    var t4 = searchKeywords.Where(f => w.Contains(f)).Select(f => f.Length).OrderDescending().FirstOrDefault(0);
+                    if (t1 > 0) {
+                        return 4 + t1;
+                    } else if (t2 > 0) {
+                        return 3 + t2;
+                    } else if (t3 > 0) {
+                        return 2 + t3;
+                    } else if (t4 > 0) {
+                        return 1 + t4;
+                    } else {
+                        return 0;
+                    }
+                })
+                .Sum();
+        }
+
+        public static (int, string?)? ShowManualWeighingDialog() {
+            var d = new ManualWeighingDialog();
+            return d.ShowDialog() == true ? (d.Weight, d.Reason) : null;
+        }
+
+        public static int? ShowAbwertenDialog(string lsnr, string name, int weight) {
+            var d = new AbwertenDialog(lsnr, name, weight);
+            return d.ShowDialog() == true ? d.Weight : null;
+        }
+
+        public static double? ShowLinearPriceIncreaseDialog() {
+            var d = new LinearPriceIncreaseDialog();
+            return d.ShowDialog() == true ? d.Price : null;
+        }
+
+        public static string? ShowDeliveryExtractionDialog(string lsnr, string name, bool single, IEnumerable<string> lsnrs) {
+            var d = new DeliveryExtractionDialog(lsnr, name, single, lsnrs);
+            return d.ShowDialog() == true ? d.AddTo : null;
+        }
+
+        public static Footer GenerateFooter(string lineBreak, string seperator) {
+            return new Footer(lineBreak, seperator);
+        }
+
+        public class Footer {
+            private string Text = "";
+            private readonly string LineBreak;
+            private readonly string Seperator;
+            private bool FirstLine = true;
+            private bool FirstItemInLine = true;
+
+            public Footer(string lineBreak, string seperator) {
+                LineBreak = lineBreak;
+                Seperator = seperator;
+            }
+
+            public Footer Item(string? text) {
+                if (text == null) return this;
+                Text += FirstItemInLine ? (FirstLine ? "" : LineBreak) : Seperator;
+                Text += text;
+                FirstLine = false;
+                FirstItemInLine = false;
+                return this;
+            }
+
+            public Footer Item(string name, string? text) {
+                return text == null ? this : Item($"{name}: {text}");
+            }
+
+            public Footer NextLine() {
+                FirstItemInLine = true;
+                return this;
+            }
+
+            public override string ToString() {
+                return Text;
+            }
+        }
+
+        public static string GetSign<T>(T number) where T : INumber<T>
+            => T.Sign(number) switch {
+                < 0 => "\u2212",  // minus
+                  0 => "\u00b1",  // plus minus
+                > 0 => "+",
+            };
+
+        public static double AggregateDeliveryPartsKmw(IEnumerable<DeliveryPart> parts)
+            => parts.Aggregate(
+                (Weight: 0, Kmw: 0.0),
+                (sum, item) => (
+                    sum.Weight + item.Weight,
+                    (sum.Kmw * sum.Weight + item.Kmw * item.Weight) / (sum.Weight + item.Weight)
+                ),
+                sum => sum.Kmw
+            );
+
+        public static string GenerateLsNr(Delivery d) => GenerateLsNr(d.Date, d.ZwstId, d.LNr);
+
+        public static string GenerateLsNr(DateOnly date, string zwstid, int lnr) => $"{date:yyyyMMdd}{zwstid}{lnr:000}";
     }
 }

Elwig/Helpers/Validator.cs

@@ -1,12 +1,11 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading.Tasks;
 using System.Windows.Controls;
 using Elwig.Models;
 
 namespace Elwig.Helpers {
-    static class Validator {
+    public static class Validator {
 
         private static readonly Dictionary<string, string[][]> PHONE_NRS = new() {
             { "43", new string[][] {
@@ -31,16 +30,16 @@ namespace Elwig.Helpers {
             { "423", Array.Empty<string[]>() },
         };
 
-        public static ValidationResult CheckNumeric(TextBox input, bool required) {
-            return CheckNumeric(input, required, -1);
+        public static ValidationResult CheckInteger(TextBox input, bool required) {
+            return CheckInteger(input, required, -1);
         }
 
-        private static ValidationResult CheckNumeric(TextBox input, bool required, int maxLen) {
+        public static ValidationResult CheckInteger(TextBox input, bool required, int maxLen) {
             string text = "";
             int pos = input.CaretIndex;
             for (int i = 0; i < input.Text.Length; i++) {
                 char ch = input.Text[i];
-                if (char.IsDigit(ch))
+                if (char.IsAsciiDigit(ch))
                     text += ch;
                 if (i == input.CaretIndex - 1)
                     pos = text.Length;
@@ -60,15 +59,80 @@ namespace Elwig.Helpers {
             return new(true, null);
         }
 
+        public static ValidationResult CheckDecimal(TextBox input, bool required) {
+            return CheckDecimal(input, required, -1, -1);
+        }
+
+        public static ValidationResult CheckDecimal(TextBox input, bool required, int maxLen, int maxDecimal) {
+            string text = "";
+            int pos = input.CaretIndex;
+            int v1 = 0, v2 = -1;
+            for (int i = 0; i < input.Text.Length; i++) {
+                char ch = input.Text[i];
+                if (char.IsAsciiDigit(ch)) {
+                    if (v2 == -1 && v1 < maxLen) {
+                        text += ch; v1++;
+                    } else if (v2 != -1 && v2 < maxDecimal) {
+                        text += ch; v2++;
+                    }
+                } else if (v2 == 0-1 && ch == ',' || ch == '.') {
+                    if (v1 == 0) { text += '0'; v1++; }
+                    text += ',';
+                    v2 = 0;
+                }
+                if (i == input.CaretIndex - 1)
+                    pos = text.Length;
+            }
+            input.Text = text;
+            input.CaretIndex = pos;
+
+            if (text.Length == 0) {
+                return required ? new(false, "Wert ist nicht optional") : new(true, null);
+            } else if (v2 == 0) {
+                return new(false, "Ungültige Kommazahl");
+            }
+
+            return new(true, null);
+        }
+
+        public static ValidationResult CheckUpperCase(TextBox input, bool required) {
+            return CheckUpperCase(input, required, -1);
+        }
+
+        public static ValidationResult CheckUpperCase(TextBox input, bool required, int maxLen) {
+            string text = "";
+            int pos = input.CaretIndex;
+            for (int i = 0; i < input.Text.Length; i++) {
+                char ch = input.Text[i];
+                if (char.IsAsciiLetter(ch))
+                    text += char.ToUpper(ch);
+                if (i == input.CaretIndex - 1)
+                    pos = text.Length;
+            }
+            input.Text = text;
+            input.CaretIndex = pos;
+
+            if (text.Length == 0) {
+                return required ? new(false, "Wert ist nicht optional") : new(true, null);
+            }
+
+            if (maxLen >= 0 && input.Text.Length > maxLen) {
+                input.Text = input.Text[..maxLen];
+                input.CaretIndex = Math.Min(pos, maxLen);
+            }
+
+            return new(true, null);
+        }
+
         public static ValidationResult CheckPlz(TextBox input, bool required, AppDbContext ctx) {
-            CheckNumeric(input, false, 4);
+            CheckInteger(input, false, 4);
             if (!required && input.Text.Length == 0) {
                 return new(true, null);
             } else if (input.Text.Length != 4) {
                 return new(false, "PLZ zu kurz");
             }
             int plz = int.Parse(input.Text);
-            if (!ctx.Postleitzahlen.Any(p => p.Plz == plz)) {
+            if (ctx.Postleitzahlen.Find(plz) == null) {
                 return new(false, "Ungültige PLZ");
             }
             return new(true, null);
@@ -77,7 +141,7 @@ namespace Elwig.Helpers {
         public static ValidationResult CheckPhoneNumber(TextBox input, bool required) {
             string text = "";
             int pos = input.CaretIndex;
-            for (int i = 0, v = 0; i < input.Text.Length && v < 30; i++) {
+            for (int i = 0, v = 0; i < input.Text.Length && v <= 15; i++) {
                 char ch = input.Text[i];
                 if (v == 0 && input.Text.Length - i >= 2 && ch == '0' && input.Text[i + 1] == '0') {
                     v++; i++;
@@ -90,21 +154,30 @@ namespace Elwig.Helpers {
                 } else if (v == 0 && ch == '+') {
                     v++;
                     text += ch;
-                } else if (v > 0 && char.IsDigit(ch)) {
+                } else if (v > 0 && (char.IsAsciiDigit(ch) || ch == ' ' || ch == '-')) {
                     if (PHONE_NRS.Any(kv => text == "+" + kv.Key))
                         text += ' ';
                     if (text.StartsWith("+43 ")) {
                         var nr = text[4..];
                         var vws = PHONE_NRS["43"];
-                        if (v >= 4 && v - 4 < vws.Length && vws[v - 4].Any(vw => nr.StartsWith(vw)))
+                        if (!text.EndsWith(" ") && v >= 4 && v - 4 < vws.Length && vws[v - 4].Any(vw => nr.StartsWith(vw))) {
                             text += ' ';
-                        else if (nr == "1")
+                        } else if (nr == "1") {
                             text += ' ';
-                        else if (v == 7 && nr.Length == 4)
+                        } else if (v == 7 && nr.Length == 4) {
                             text += ' ';
+                        }
+                        var vw = text.Split(" ");
+                        if (char.IsAsciiDigit(ch)) {
+                            v++;
+                            text += ch;
+                        } else if (char.IsAsciiDigit(text[^1]) && vw.Length > 2 && v >= 10 && (vw[1].Length - 1 >= vws.Length || !vws[vw[1].Length - 1].Any(v => vw[1].StartsWith(v)))) {
+                            text += ch;
+                        }
+                    } else {
+                        v++;
+                        text += ch;
                     }
-                    v++;
-                    text += ch;
                 }
                 if (i == input.CaretIndex - 1)
                     pos = text.Length;
@@ -118,7 +191,7 @@ namespace Elwig.Helpers {
                 return new(false, "Telefonnummer zu kurz");
             }
 
-            return new(true, null);
+            return new(char.IsAsciiDigit(text[^1]), null);
         }
 
         public static ValidationResult CheckEmailAddress(TextBox input, bool required) {
@@ -128,7 +201,7 @@ namespace Elwig.Helpers {
             for (int i = 0; i < input.Text.Length && text.Length < 256; i++) {
                 char ch = input.Text[i];
                 if (domain) {
-                    if ((char.IsAscii(ch) && char.IsLetterOrDigit(ch)) || ".-_öäüßÖÄÜẞ".Any(c => c == ch)) {
+                    if ((char.IsAsciiLetterOrDigit(ch)) || ".-_öäüßÖÄÜẞ".Any(c => c == ch)) {
                         if (!(text.Last() == '.' && ch == '.'))
                             text += char.ToLower(ch);
                     }
@@ -146,13 +219,13 @@ namespace Elwig.Helpers {
             input.CaretIndex = pos;
 
             if (text.Length == 0) {
-                return required ? new(false, "E-Mail_Adresse ist nicht optional") : new(true, null);
+                return required ? new(false, "E-Mail-Adresse ist nicht optional") : new(true, null);
             } else if (text[0] == '@' || !domain) {
                 return new(false, "E-Mail-Adresse ungültig");
             }
 
             var last = text.Split(".").Last();
-            if (last.Length < 2 || !last.All(ch => char.IsAscii(ch) && char.IsLower(ch)))
+            if (last.Length < 2 || !last.All(ch => char.IsAsciiLetterLower(ch)))
                 return new(false, "E-Mail-Adresse ungültig");
 
             return new(true, null);
@@ -164,9 +237,9 @@ namespace Elwig.Helpers {
             int v = 0;
             for (int i = 0; i < input.Text.Length && v < 34; i++) {
                 char ch = input.Text[i];
-                if (char.IsLetterOrDigit(ch) && char.IsAscii(ch)) {
-                    if (((v < 2 && char.IsLetter(ch)) || (v >= 2 && v < 4 && char.IsDigit(ch)) || v >= 4) &&
-                        ((!text.StartsWith("AT") && !text.StartsWith("DE")) || char.IsDigit(ch)))
+                if (char.IsAsciiLetterOrDigit(ch)) {
+                    if (((v < 2 && char.IsAsciiLetter(ch)) || (v >= 2 && v < 4 && char.IsAsciiDigit(ch)) || v >= 4) &&
+                        ((!text.StartsWith("AT") && !text.StartsWith("DE")) || char.IsAsciiDigit(ch)))
                     {
                         if (v != 0 && v % 4 == 0)
                             text += ' ';
@@ -191,7 +264,7 @@ namespace Elwig.Helpers {
             }
 
             var validation = (text[4..] + text[..4]).Replace(" ", "")
-                .Select(ch => char.IsDigit(ch) ? ch.ToString() : (ch - 'A' + 10).ToString())
+                .Select(ch => char.IsAsciiDigit(ch) ? ch.ToString() : (ch - 'A' + 10).ToString())
                 .Aggregate((a, b) => a + b);
             if (Utils.Modulo(validation, 97) != 1)
                 return new(false, "Prüfsumme der IBAN ist falsch");
@@ -204,10 +277,10 @@ namespace Elwig.Helpers {
             int pos = input.CaretIndex;
             for (int i = 0, v = 0; i < input.Text.Length; i++) {
                 char ch = input.Text[i];
-                if ((v < 4 || v >= 6) && char.IsAscii(ch) && char.IsLetterOrDigit(ch)) {
+                if ((v < 4 || v >= 6) && char.IsAsciiLetterOrDigit(ch)) {
                     v++;
                     text += char.ToUpper(ch);
-                } else if (v >= 4 && v < 6 && char.IsAscii(ch) && char.IsLetter(ch)) {
+                } else if (v >= 4 && v < 6 && char.IsAsciiLetter(ch)) {
                     v++;
                     text += char.ToUpper(ch);
                 }
@@ -238,7 +311,7 @@ namespace Elwig.Helpers {
         }
 
         public static ValidationResult CheckLfbisNr(TextBox input, bool required) {
-            var res = CheckNumeric(input, false, 7);
+            var res = CheckInteger(input, false, 7);
             if (!res.IsValid) {
                 return res;
             } else if (!required && input.Text.Length == 0) {
@@ -247,18 +320,77 @@ namespace Elwig.Helpers {
                 return new(false, "Betriebsnummer zu kurz");
             }
 
-            // TODO
+            // https://statistik.at/fileadmin/shared/QM/Standarddokumentationen/RW/std_r_land-forstw_register.pdf#page=41
+            int s = 0, v;
+            for (int i = 0; i < 6; i++)
+                s += (input.Text[i] - '0') * (7 - i);
+            v = (11 - (s % 11)) % 10;
 
-            return new(true, "Not implemented yet");
+            if (v != (input.Text[6] - '0'))
+                return new(false, "Prüfsumme der Betriebsnummer ist falsch");
+
+            return new(true, null);
         }
 
-        public static ValidationResult CheckUstId(TextBox input, bool required) {
-            // TODO
-            return new(true, "Not implemented yet");
+        public static ValidationResult CheckUstIdNr(TextBox input, bool required) {
+            string text = "";
+            int pos = input.CaretIndex;
+            for (int i = 0, v = 0; i < input.Text.Length; i++) {
+                char ch = input.Text[i];
+                if (v < 2 && char.IsAsciiLetter(ch)) {
+                    v++;
+                    text += char.ToUpper(ch);
+                } else if (v >= 2 && char.IsAsciiLetterOrDigit(ch)) {
+                    if (text.StartsWith("AT")) {
+                        if (v == 2 && (ch == 'u' || ch == 'U')) {
+                            v++;
+                            text += 'U';
+                        } else if (v > 2 && char.IsAsciiDigit(ch)) {
+                            v++;
+                            text += ch;
+                        }
+                    } else {
+                        v++;
+                        text += char.ToUpper(ch);
+                    }
+                }
+
+                if (i == input.CaretIndex - 1) {
+                    pos = text.Length;
+                } else if (v >= 14) {
+                    break;
+                } else if (text.StartsWith("AT") && v >= 11) {
+                    break;
+                }
+            }
+
+            input.Text = text;
+            input.CaretIndex = pos;
+
+            if (text.Length == 0)
+                return required ? new(false, "UID ist nicht optional") : new(true, null);
+
+            if (text.StartsWith("AT")) {
+                if (text.Length != 11 || text[2] != 'U')
+                    return new(false, "UID ist ungültig");
+
+                // http://www.pruefziffernberechnung.de/U/USt-IdNr.shtml
+                int s = 0, v = 0;
+                for (int i = 0; i < 7; i++)
+                    s += ((text[i + 3] - '0') * (i % 2 + 1)).ToString().Select(ch => ch - '0').Sum();
+                v = (96 - s) % 10;
+
+                if (v != (text[10] - '0'))
+                    return new(false, "Prüfsumme der UID ist falsch");
+            } else {
+                return new(false, "Not implemented yet");
+            }
+
+            return new(true, null);
         }
 
-        public static ValidationResult CheckMgNr(TextBox input, bool required, AppDbContext ctx, Member? m) {
-            var res = CheckNumeric(input, required);
+        public static ValidationResult CheckMgNr(TextBox input, bool required, AppDbContext ctx) {
+            var res = CheckInteger(input, required);
             if (!res.IsValid) {
                 return res;
             } else if (!required && input.Text.Length == 0) {
@@ -266,20 +398,56 @@ namespace Elwig.Helpers {
             }
 
             int nr = int.Parse(input.Text);
-            if (nr != m?.MgNr && Utils.MgNrExists(ctx, nr).GetAwaiter().GetResult()) {
+            if (!ctx.MgNrExists(nr).GetAwaiter().GetResult()) {
+                return new(false, "Ungültige Mitgliedsnummer");
+            }
+
+            return new(true, null);
+        }
+
+        public static ValidationResult CheckNewMgNr(TextBox input, bool required, AppDbContext ctx, Member? m) {
+            var res = CheckInteger(input, required);
+            if (!res.IsValid) {
+                return res;
+            } else if (!required && input.Text.Length == 0) {
+                return new(true, null);
+            }
+
+            int nr = int.Parse(input.Text);
+            if (nr != m?.MgNr && ctx.MgNrExists(nr).GetAwaiter().GetResult()) {
                 return new(false, "Mitgliedsnummer wird bereits verwendet");
             }
 
             return new(true, null);
         }
 
-        public static ValidationResult CheckPredecessorMgNr(TextBox input, bool required, AppDbContext ctx) {
-            var res = CheckNumeric(input, required);
+        public static ValidationResult CheckSortId(TextBox input, bool required, AppDbContext ctx) {
+            var res = CheckUpperCase(input, required, 3);
             if (!res.IsValid) {
                 return res;
             } else if (!required && input.Text.Length == 0) {
                 return new(true, null);
-            } else if (!Utils.MgNrExists(ctx, int.Parse(input.Text)).GetAwaiter().GetResult()) {
+            }
+
+            if (input.Text.Length < 2 || !ctx.SortIdExists(input.Text[0..2]).GetAwaiter().GetResult()) {
+                return new(false, "Ungültige Sorte");
+            } else if (input.Text.Length >= 3) {
+                var attr = input.Text[2..];
+                if (!ctx.AttrIdExists(attr).GetAwaiter().GetResult()) {
+                    return new(false, "Ungültiges Attribut");
+                }
+            }
+
+            return new(true, null);
+        }
+
+        public static ValidationResult CheckPredecessorMgNr(TextBox input, bool required, AppDbContext ctx) {
+            var res = CheckInteger(input, required);
+            if (!res.IsValid) {
+                return res;
+            } else if (!required && input.Text.Length == 0) {
+                return new(true, null);
+            } else if (!ctx.MgNrExists(int.Parse(input.Text)).GetAwaiter().GetResult()) {
                 return new(false, "Ein Mitglied mit dieser Mitgliedsnummer existiert nicht");
             }
 
@@ -287,17 +455,74 @@ namespace Elwig.Helpers {
         }
 
         public static ValidationResult CheckDate(TextBox input, bool required) {
-            // TODO
-            return new(true, "Not implemented yet");
+            return CheckDate(input, required, false);
         }
 
         public static ValidationResult CheckPartialDate(TextBox input, bool required) {
-            // TODO
-            return new(true, "Not implemented yet");
+            return CheckDate(input, required, true);
         }
 
-        public static ValidationResult CheckVNr(TextBox input, bool required, AppDbContext ctx, Contract? c) {
-            var res = CheckNumeric(input, required);
+        private static ValidationResult CheckDate(TextBox input, bool required, bool partial) {
+            string text = "";
+            int pos = input.CaretIndex;
+            int p = 0;
+            var parts = new string?[3];
+            parts[0] = "";
+            for (int i = 0; i < input.Text.Length; i++) {
+                char ch = input.Text[i];
+                if (ch == '.') {
+                    if (p < 2 && (parts[p]?.Length > 0 || pos == text.Length)) {
+                        if (parts[p]?.Length == 1 && ((pos != text.Length && pos != text.Length - 1) || !input.IsFocused)) {
+                            parts[p] = "0" + parts[p];
+                            text = text[..(text.Length - 1)] + "0" + text[^1];
+                        }
+                        parts[++p] = "";
+                        text += '.';
+                    }
+                } else if (char.IsAsciiDigit(ch)) {
+                    if ((partial && parts[p]?.Length < 4) || (!partial && ((p < 2 && parts[p]?.Length < 2) || (p == 2 && parts[2]?.Length < 4)))) {
+                        parts[p] += ch;
+                        text += ch;
+                    }
+                    if (p == 0 && pos == 1 && input.Text.Length >= 4 && input.Text.Length <= 9) {
+                        parts[++p] = "";
+                        text += '.';
+                        continue;  // skip caret update
+                    }
+                }
+
+                if (i == input.CaretIndex - 1) {
+                    pos = text.Length;
+                }
+            }
+
+            input.Text = text;
+            input.CaretIndex = pos;
+
+            if (text.Length == 0)
+                return required ? new(false, "Datum ist nicht optional") : new(true, null);
+
+            if (partial) {
+                if (p == 0) {
+                    // only year provided
+                    return (parts[0]?.Length == 4) ? new(true, null) : new(false, "Datum ist ungültig");
+                } else if (p == 1) {
+                    // only month and year provided
+                    int m = parts[0] != null && parts[0] != "" ? int.Parse(parts[0] ?? "0") : 0;
+                    if (parts[1]?.Length != 4 || parts[0]?.Length != 2 || m < 1 || m > 12)
+                        return new(false, "Datum ist ungültig");
+                    return new(true, null);
+                }
+            }
+
+            if (!DateOnly.TryParseExact(text, "dd.MM.yyyy", out _))
+                return new(false, "Datum ist ungültig");
+
+            return new(true, null);
+        }
+
+        public static ValidationResult CheckFbNr(TextBox input, bool required, AppDbContext ctx, AreaCom? c) {
+            var res = CheckInteger(input, required);
             if (!res.IsValid) {
                 return res;
             } else if (!required && input.Text.Length == 0) {
@@ -305,8 +530,8 @@ namespace Elwig.Helpers {
             }
 
             int nr = int.Parse(input.Text);
-            if (nr != c?.VNr && Utils.VNrExists(ctx, nr).GetAwaiter().GetResult()) {
-                return new(false, "Vertragsnummer wird bereits verwendet");
+            if (nr != c?.FbNr && ctx.FbNrExists(nr).GetAwaiter().GetResult()) {
+                return new(false, "Flächenbindungsnummer wird bereits verwendet");
             }
 
             return new(true, null);
@@ -316,5 +541,37 @@ namespace Elwig.Helpers {
             // TODO
             return new(true, "Not implemented yet");
         }
+
+        public static ValidationResult CheckGradatoinOe(TextBox input, bool required) {
+            var res = CheckInteger(input, required, 3);
+            if (!res.IsValid) {
+                return res;
+            } else if (!required && input.Text.Length == 0) {
+                return new(true, null);
+            }
+
+            var oe = double.Parse(input.Text);
+            if (oe < 10 || oe >= 300) {
+                return new(false, "Ungültiger Oechsle-Wert");
+            }
+
+            return new(true, null);
+        }
+
+        public static ValidationResult CheckGradationKmw(TextBox input, bool required) {
+            var res = CheckDecimal(input, required, 2, 1);
+            if (!res.IsValid) {
+                return res;
+            } else if (!required && input.Text.Length == 0) {
+                return new(true, null);
+            }
+
+            var kmw = double.Parse(input.Text);
+            if (kmw < 5 || kmw >= 50) {
+                return new(false, "Ungültiger KMW-Wert");
+            }
+
+            return new(true, null);
+        }
     }
 }

Elwig/Helpers/Weighing/GassnerScale.cs

@@ -0,0 +1,64 @@
+using System;
+using System.IO;
+using System.IO.Ports;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    public class GassnerScale : IScale {
+
+        protected SerialPort Serial = null;
+        protected StreamReader Reader;
+        protected StreamWriter Writer;
+
+        public string Manufacturer => "Gassner";
+        public int InternalScaleNr => 1;
+        public string Model { get; private set; }
+        public string ScaleId { get; private set; }
+        public bool IsReady { get; private set; }
+        public bool HasFillingClearance { get; private set; }
+        public int? WeightLimit { get; private set; }
+        public string? LogPath { get; private set; }
+
+        public GassnerScale(string id, string model, string connection) {
+            ScaleId = id;
+            Model = model;
+            IsReady = true;
+            HasFillingClearance = false;
+
+            if (!connection.StartsWith("serial:"))
+                throw new ArgumentException("Unsupported scheme");
+
+            Serial = Utils.OpenSerialConnection(connection);
+            Writer = new(Serial.BaseStream, Encoding.ASCII, -1, true);
+            Reader = new(Serial.BaseStream, Encoding.ASCII, false, -1, true);
+        }
+
+        public void Dispose() {
+            Writer.Close();
+            Reader.Close();
+            Serial.Close();
+            GC.SuppressFinalize(this);
+        }
+
+        public async Task<WeighingResult> Weigh(bool incIdentNr) {
+            await Writer.WriteAsync(incIdentNr ? "\x05" : "?");
+            // TODO receive response
+            return new();
+        }
+
+        public async Task<WeighingResult> GetCurrentWeight() {
+            return await Weigh(false);
+        }
+
+        public async Task<WeighingResult> Weigh() {
+            return await Weigh(true);
+        }
+
+        public async Task Empty() { }
+
+        public async Task GrantFillingClearance() { }
+
+        public async Task RevokeFillingClearance() { }
+    }
+}

Elwig/Helpers/Weighing/IScale.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    /// <summary>
+    /// Interface for controlling a industrial scale
+    /// </summary>
+    public interface IScale : IDisposable {
+        /// <summary>
+        /// Manufacturer of the scale
+        /// </summary>
+        string Manufacturer { get; }
+
+        /// <summary>
+        /// Model of the scale
+        /// </summary>
+        string Model { get; }
+
+        /// <summary>
+        /// Unique identificator of the scale
+        /// </summary>
+        string ScaleId { get; }
+
+        /// <summary>
+        /// Internal identifying number of the scale in its system
+        /// </summary>
+        int InternalScaleNr { get; }
+
+        /// <summary>
+        /// Indicates if the scale is currently processing a request or not
+        /// </summary>
+        bool IsReady { get; }
+
+        /// <summary>
+        /// Indicates if the the clearance for filling the scale container has been granted
+        /// </summary>
+        bool HasFillingClearance { get; }
+
+        /// <summary>
+        /// The maximal configured weight limit of the scale in kg
+        /// </summary>
+        int? WeightLimit { get; }
+
+        /// <summary>
+        /// Where to log the requests and responses from the scale to
+        /// </summary>
+        string? LogPath { get; }
+
+        /// <summary>
+        /// Get the current weight on the scale without performing a weighing process
+        /// </summary>
+        /// <returns>Result of the weighing process (probably without a weighing id)</returns>
+        Task<WeighingResult> GetCurrentWeight();
+
+        /// <summary>
+        /// Perform a weighing process
+        /// </summary>
+        /// <returns>Result of the weighing process (including a weighing id)</returns>
+        Task<WeighingResult> Weigh();
+
+        /// <summary>
+        /// Empty the scale container or grant clearance to do so
+        /// </summary>
+        Task Empty();
+
+        /// <summary>
+        /// Grant clearance to fill the scale container
+        /// </summary>
+        Task GrantFillingClearance();
+
+        /// <summary>
+        /// Revoke clearance to fill the scale container
+        /// </summary>
+        Task RevokeFillingClearance();
+    }
+}

Elwig/Helpers/Weighing/SchemberScale.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    // TODO implement SchemberScale
+    public class SchemberScale : IScale {
+
+        public string Manufacturer => "Schember";
+        public string Model => throw new NotImplementedException();
+        public string ScaleId => throw new NotImplementedException();
+        public int InternalScaleNr => throw new NotImplementedException();
+        public bool IsReady => throw new NotImplementedException();
+        public bool HasFillingClearance => throw new NotImplementedException();
+        public int? WeightLimit => throw new NotImplementedException();
+        public string? LogPath => throw new NotImplementedException();
+
+        public void Dispose() {
+            throw new NotImplementedException();
+        }
+
+        public Task Empty() {
+            throw new NotImplementedException();
+        }
+
+        public Task<WeighingResult> GetCurrentWeight() {
+            throw new NotImplementedException();
+        }
+
+        public Task GrantFillingClearance() {
+            throw new NotImplementedException();
+        }
+
+        public Task RevokeFillingClearance() {
+            throw new NotImplementedException();
+        }
+
+        public Task<WeighingResult> Weigh() {
+            throw new NotImplementedException();
+        }
+    }
+}

Elwig/Helpers/Weighing/SystecScale.cs

@@ -0,0 +1,231 @@
+using System;
+using System.IO;
+using System.IO.Ports;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    public class SystecScale : IScale {
+
+        protected enum Output { RTS, DTR, OUT1, OUT2 };
+
+        protected SerialPort? Serial = null;
+        protected SerialPort? ControlSerialEmpty = null, ControlSerialFilling = null;
+        protected TcpClient? Tcp = null;
+        protected Stream Stream;
+
+        protected readonly Output? EmptyMode = null;
+        protected readonly Output? FillingClearanceMode = null;
+        protected readonly int EmptyDelay;
+
+        public string Manufacturer => "SysTec";
+        public int InternalScaleNr => 1;
+        public string Model { get; private set; }
+        public string ScaleId { get; private set; }
+        public bool IsReady { get; private set; }
+        public bool HasFillingClearance { get; private set; }
+        public int? WeightLimit { get; private set; }
+        public string? LogPath { get; private set; }
+
+        public SystecScale(string id, string model, string connection, string? empty = null, string? filling = null, int? limit = null, string? log = null) {
+            ScaleId = id;
+            Model = model;
+            IsReady = true;
+            HasFillingClearance = false;
+            LogPath = log;
+
+            if (connection.StartsWith("serial:")) {
+                Serial = Utils.OpenSerialConnection(connection);
+                Stream = Serial.BaseStream;
+            } else if (connection.StartsWith("tcp:")) {
+                Tcp = Utils.OpenTcpConnection(connection);
+                Stream = Tcp.GetStream();
+            } else {
+                throw new ArgumentException("Unsupported scheme");
+            }
+
+            if (empty != null) {
+                var parts = empty.Split(':');
+                if (parts.Length == 3) {
+                    if (parts[0] != Serial?.PortName)
+                        ControlSerialEmpty = Utils.OpenSerialConnection($"serial://{parts[0]}:9600");
+                } else if (parts.Length != 2) {
+                    throw new ArgumentException("Invalid value for 'empty'");
+                }
+                EmptyMode = ConvertOutput(parts[^2]);
+                EmptyDelay = int.Parse(parts[^1]);
+            }
+
+            WeightLimit = limit;
+            if (filling != null) {
+                var parts = filling.Split(':');
+                if (parts.Length == 2) {
+                    if (parts[0] != Serial?.PortName)
+                        ControlSerialFilling = parts[0] != ControlSerialEmpty?.PortName ? Utils.OpenSerialConnection($"serial://{parts[0]}:9600") : ControlSerialEmpty;
+                } else if (parts.Length != 1) {
+                    throw new ArgumentException("Invalid value for 'filling'");
+                }
+                FillingClearanceMode = ConvertOutput(parts[^1]);
+            }
+
+            if (FillingClearanceMode != null && WeightLimit == null)
+                throw new ArgumentException("Weight limit has to be set, if filling clearance supervision is enabled");
+        }
+
+        public void Dispose() {
+            Stream.Close();
+            Serial?.Close();
+            ControlSerialEmpty?.Close();
+            ControlSerialFilling?.Close();
+            Tcp?.Close();
+            GC.SuppressFinalize(this);
+        }
+
+        protected static Output? ConvertOutput(string? value) {
+            return value switch {
+                null => null,
+                "RTS" => Output.RTS,
+                "DTR" => Output.DTR,
+                "OUT1" => Output.OUT1,
+                "OUT2" => Output.OUT2,
+                _ => throw new ArgumentException($"Invalid value for argument: '{value}'"),
+            };
+        }
+
+        protected async Task SendCommand(string command) {
+            byte[] bytes = Encoding.ASCII.GetBytes($"<{command}>");
+            await Stream.WriteAsync(bytes);
+            if (LogPath != null) await File.AppendAllTextAsync(LogPath, $"<{command}>");
+        }
+
+        protected async Task<string> ReceiveResponse() {
+            string? line = null;
+            using (var reader = new StreamReader(Stream, Encoding.ASCII, false, -1, true)) {
+                line = await reader.ReadLineAsync();
+                if (LogPath != null) await File.AppendAllTextAsync(LogPath, $"{line}\r\n");
+            }
+            if (line == null || line.Length < 4 || !line.StartsWith("<") || !line.EndsWith(">")) {
+                throw new IOException("Invalid response from scale");
+            }
+
+            var error = line[1..3];
+            if (error[0] == '0') {
+                if (error[1] != '0') {
+                    throw new IOException($"Invalid response from scale (error code {error})");
+                }
+            } else if (error[0] == '1') {
+                string msg = $"Unbekannter Fehler (Fehler code {error})";
+                switch (error[1]) {
+                    case '1': msg = "Allgemeiner Waagenfehler"; break;
+                    case '2': msg = "Waage in Überlast"; break;
+                    case '3': msg = "Waage in Bewegung"; break;
+                    case '5': msg = "Tarierungs- oder Nullsetzfehler"; break;
+                    case '6': msg = "Drucker nicht bereit"; break;
+                    case '7': msg = "Druckmuster enthält ungültiges Kommando"; break;
+                }
+                throw new IOException($"Waagenfehler {error}: {msg}");
+            } else if (error[0] == '3') {
+                string msg = $"Unbekannter Fehler (Fehler code {error})";
+                switch (error[1]) {
+                    case '1': msg = "Übertragunsfehler"; break;
+                    case '2': msg = "Ungültiger Befehl"; break;
+                    case '3': msg = "Ungültiger Parameter"; break;
+                }
+                throw new IOException($"Kommunikationsfehler {error}: {msg}");
+            } else {
+                throw new IOException($"Invalid response from scale (error code {error})");
+            }
+
+            return line[1..^1];
+        }
+
+        protected async Task<WeighingResult> Weigh(bool incIdentNr) {
+            await SendCommand(incIdentNr ? $"RN{InternalScaleNr}" : $"RM{InternalScaleNr}");
+            string record = await ReceiveResponse();
+            if (record.Length != 62)
+                throw new IOException("Invalid response from scale: Received record has invalid size");
+            var line = record[2..];
+
+            var status     = line[ 0.. 2];
+            var date       = line[ 2..10];
+            var time       = line[10..15];
+            var identNr    = line[15..19].Trim();
+            var scaleNr    = line[19..20];
+            var brutto     = line[20..28].Trim();
+            var tara       = line[28..36].Trim();
+            var netto      = line[36..44].Trim();
+            var unit       = line[44..46];
+            var taraCode   = line[46..48];
+            var zone       = line[48..49].Trim();
+            var terminalNr = line[49..52].Trim();
+            var crc16      = line[52..60].Trim();
+
+            if (Utils.CalcCrc16Modbus(record[..54]) != ushort.Parse(crc16)) {
+                throw new IOException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54]).ToString()})");
+            } else if (unit != "kg") {
+                throw new IOException($"Unsupported unit in weighing response: '{unit}'");
+            }
+
+            identNr = identNr.Length > 0 && identNr != "0" ? identNr : null;
+            var parsedDate = DateOnly.Parse(date);
+            return new() {
+                Weight = int.Parse(netto),
+                WeighingId = identNr,
+                FullWeighingId = identNr != null ? $"{parsedDate:yyyy-MM-dd}/{identNr}" : null,
+                Date = parsedDate,
+                Time = TimeOnly.Parse(time),
+            };
+        }
+
+        public async Task<WeighingResult> Weigh() {
+            return await Weigh(true);
+        }
+
+        public async Task<WeighingResult> GetCurrentWeight() {
+            return await Weigh(false);
+        }
+
+        public async Task Empty() {
+            SerialPort? p = ControlSerialEmpty ?? Serial;
+            if (EmptyMode == Output.RTS && p != null) {
+                p.RtsEnable = true;
+                await Task.Delay(EmptyDelay);
+                p.RtsEnable = false;
+            } else if (EmptyMode == Output.DTR && p != null) {
+                p.DtrEnable = true;
+                await Task.Delay(EmptyDelay);
+                p.DtrEnable = false;
+            } else if (EmptyMode == Output.OUT1 || EmptyMode == Output.OUT2) {
+                int output = EmptyMode == Output.OUT1 ? 1 : 2;
+                await SendCommand($"OS{output:00}");
+                await ReceiveResponse();
+                await Task.Delay(EmptyDelay);
+                await SendCommand($"OC{output:00}");
+                await ReceiveResponse();
+            }
+        }
+
+        protected async Task SetFillingClearance(bool status) {
+            SerialPort? p = ControlSerialFilling ?? Serial;
+            if (FillingClearanceMode == Output.RTS && p != null) {
+                p.RtsEnable = status;
+            } else if (FillingClearanceMode == Output.DTR && p != null) {
+                p.DtrEnable = status;
+            } else if (FillingClearanceMode == Output.OUT1 || FillingClearanceMode == Output.OUT2) {
+                string cmd = status ? "OS" : "OC";
+                int output = FillingClearanceMode == Output.OUT1 ? 1 : 2;
+                await SendCommand($"{cmd}{output:00}");
+                await ReceiveResponse();
+            }
+        }
+
+        public async Task GrantFillingClearance() {
+            await SetFillingClearance(true);
+        }
+
+        public async Task RevokeFillingClearance() {
+            await SetFillingClearance(false);
+        }
+    }
+}

Elwig/Helpers/Weighing/WeighingResult.cs

@@ -0,0 +1,39 @@
+using System;
+
+namespace Elwig.Helpers.Weighing {
+    /// <summary>
+    /// Result of a weighing process on an industrial scale
+    /// </summary>
+    public class WeighingResult {
+        /// <summary>
+        /// Measured net weight in kg
+        /// </summary>
+        public int? Weight = null;
+
+        /// <summary>
+        /// Weighing id (or IdentNr) provided by the scale
+        /// </summary>
+        public string? WeighingId = null;
+
+        /// <summary>
+        /// Wheighing id (or IdentNr) provided by the scale optionally combined with the current date
+        /// </summary>
+        public string? FullWeighingId = null;
+
+        /// <summary>
+        /// Date string provided by the scale
+        /// </summary>
+        public DateOnly? Date = null;
+
+        /// <summary>
+        /// Time string provided by the scale
+        /// </summary>
+        public TimeOnly? Time = null;
+
+        /// <returns>&lt;Weight/WeighingId/Date/Time&gt;</returns>
+        override public string ToString() {
+            var w = Weight != null ? $"{Weight}kg" : "";
+            return $"<{w}/{WeighingId}/{Date:yyyy-MM-dd}/{Time:HH:mm}>";
+        }
+    }
+}

Elwig/Models/AT_Gem.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -9,5 +10,11 @@ namespace Elwig.Models {
 
         [Column("name")]
         public string Name { get; private set; }
+
+        [InverseProperty("Gem")]
+        public virtual ISet<AT_Kg> Kgs { get; private set; }
+
+        [InverseProperty("AtGem")]
+        public virtual WbGem? WbGem { get; private set; }
     }
 }

Elwig/Models/AT_Kg.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -15,5 +15,8 @@ namespace Elwig.Models {
 
         [ForeignKey("Gkz")]
         public virtual AT_Gem Gem { get; private set; }
+
+        [InverseProperty("AtKg")]
+        public virtual WbKg WbKg { get; private set; }
     }
 }

Elwig/Models/AT_Ort.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {

Elwig/Models/AT_Plz.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 

Elwig/Models/AT_PlzDest.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -11,7 +11,7 @@ namespace Elwig.Models {
         public int Okz { get; private set; }
 
         [Column("country")]
-        public string CountryCode { get; private set; }
+        public int CountryNum { get; private set; }
 
         [Column("id")]
         public string Id { get; private set;  }
@@ -25,7 +25,7 @@ namespace Elwig.Models {
         [ForeignKey("Okz")]
         public virtual AT_Ort Ort { get; private set; }
 
-        [ForeignKey("CountryCode")]
+        [ForeignKey("CountryNum")]
         public virtual Country Country { get; private set; }
     }
 }

Elwig/Models/AreaCom.cs

@@ -0,0 +1,55 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("area_commitment"), PrimaryKey("FbNr")]
+    public class AreaCom {
+        [Column("fbnr")]
+        public int FbNr { get; set; }
+
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [Column("vtrgid")]
+        public string VtrgId { get; set; }
+
+        [Column("cultid")]
+        public string CultId { get; set; }
+
+        [Column("area")]
+        public int Area { get; set; }
+
+        [Column("kgnr")]
+        public int KgNr { get; set; }
+
+        [Column("gstnr")]
+        public string GstNr { get; set; }
+
+        [Column("rdnr")]
+        public int? RdNr { get; set; }
+
+        [Column("year_from")]
+        public int YearFrom { get; set; }
+
+        [Column("year_to")]
+        public int? YearTo { get; set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+
+        [ForeignKey("VtrgId")]
+        public virtual AreaComType AreaComType { get; private set; }
+
+        [ForeignKey("CultId")]
+        public virtual WineCult WineCult { get; private set; }
+
+        [ForeignKey("KgNr")]
+        public virtual WbKg Kg { get; private set; }
+
+        [ForeignKey("KgNr, RdNr")]
+        public virtual WbRd? Rd { get; private set; }
+    }
+}

Elwig/Models/AreaComType.cs

@@ -0,0 +1,51 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("area_commitment_type"), PrimaryKey("VtrgId"), Index("SortId", "AttrId1", "AttrId2", "Discriminator")]
+    public class AreaComType {
+        [Column("vtrgid")]
+        public string VtrgId { get; set; }
+
+        [Column("sortid")]
+        public string SortId { get; set; }
+
+        [Column("attrid_1")]
+        public string? AttrId1 { get; set; }
+
+        [Column("attrid_2")]
+        public string? AttrId2 { get; set; }
+
+        [Column("disc")]
+        public string? Discriminator { get; set; }
+
+        [Column("min_kg_per_ha")]
+        public int? MinKgPerHa { get; set; }
+
+        [Column("max_kg_per_ha")]
+        public int? MaxKgPerHa { get; set; }
+
+        [Column("penalty_amount")]
+        public long? PenaltyAmoutValue { get; set; }
+
+        [NotMapped]
+        public decimal? PenaltyAmount {
+            get => PenaltyAmoutValue != null ? Utils.DecFromDb(PenaltyAmoutValue.Value, 4) : null;
+            set => PenaltyAmoutValue = value != null ? Utils.DecToDb(value.Value, 4) : null;
+        }
+
+        [ForeignKey("SortId")]
+        public virtual WineVar WineVar { get; private set; }
+
+        [ForeignKey("AttrId1")]
+        public virtual WineAttr? WineAttr1 { get; private set; }
+
+        [ForeignKey("AttrId2")]
+        public virtual WineAttr? WineAttr2 { get; private set; }
+
+        [NotMapped]
+        public string DisplayName => WineVar.Name + (WineAttr1 != null ? $" {WineAttr1.Name}" : "") +
+            (WineAttr2 != null ? $" {WineAttr2.Name}" : "") + (Discriminator != null ? $" ({Discriminator})" : "");
+    }
+}

Elwig/Models/AreaCommitment.cs

@@ -1,49 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace Elwig.Models {
-    [Table("area_commitment"), PrimaryKey("VNr", "KgNr", "GstNr")]
-    public class AreaCommitment {
-        [Column("vnr")]
-        public int VNr { get; set; }
-
-        [Column("kgnr")]
-        public int KgNr { get; set; }
-
-        [Column("gstnr")]
-        public string? GstNr { get; set; }
-
-        [Column("rdnr")]
-        public int? RdNr { get; set; }
-
-        [Column("area")]
-        public int Area { get; set; }
-
-        [Column("sortid")]
-        public string SortId { get; set; }
-
-        [Column("attrid")]
-        public string? AttrId { get; set; }
-
-        [Column("cultid")]
-        public string CultId { get; set; }
-
-        [ForeignKey("KgNr")]
-        public virtual WbKg Kg { get; private set; }
-
-        [ForeignKey("KgNr, RdNr")]
-        public virtual WbRd? Rd { get; private set; }
-
-        [ForeignKey("VNr")]
-        public virtual Contract Contract { get; private set; }
-
-        [ForeignKey("SortId")]
-        public virtual WineVar WineVar { get; private set; }
-
-        [ForeignKey("AttrId")]
-        public virtual WineAttr WineAttr { get; private set; }
-
-        [ForeignKey("CultId")]
-        public virtual WineCult WineCult { get; private set; }
-    }
-}

Elwig/Models/BillingAddr.cs

@@ -1,9 +1,9 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
     [Table("member_billing_address"), PrimaryKey("MgNr")]
-    public class BillingAddress {
+    public class BillingAddr {
         [Column("mgnr")]
         public int MgNr { get; set; }
 
@@ -11,7 +11,7 @@ namespace Elwig.Models {
         public string Name { get; set; }
 
         [Column("country")]
-        public string CountryCode { get; set; }
+        public int CountryNum { get; set; }
 
         [Column("postal_dest")]
         public string PostalDestId { get; set; }
@@ -22,10 +22,10 @@ namespace Elwig.Models {
         [ForeignKey("MgNr")]
         public virtual Member Member { get; private set; }
 
-        [ForeignKey("CountryCode")]
+        [ForeignKey("CountryNum")]
         public virtual Country Country { get; private set; }
 
-        [ForeignKey("CountryCode, PostalDestId")]
+        [ForeignKey("CountryNum, PostalDestId")]
         public virtual PostalDest PostalDest { get; private set; }
     }
 }

Elwig/Models/Branch.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 
@@ -11,6 +11,30 @@ namespace Elwig.Models {
         [Column("name")]
         public string Name { get; set; }
 
+        [Column("country")]
+        public int? CountryNum { get; set; }
+
+        [Column("postal_dest")]
+        public string? PostalDestId { get; set; }
+
+        [Column("address")]
+        public string? Address { get; set; }
+
+        [ForeignKey("CountryNum")]
+        public virtual Country? Country { get; private set; }
+
+        [ForeignKey("CountryNum, PostalDestId")]
+        public virtual PostalDest? PostalDest { get; private set; }
+
+        [Column("phone_nr")]
+        public string? PhoneNr { get; set; }
+
+        [Column("fax_nr")]
+        public string? FaxNr { get; set; }
+
+        [Column("mobile_nr")]
+        public string? MobileNr { get; set; }
+
         [InverseProperty("Branch")]
         public virtual ISet<Member> Members { get; private set; }
     }

Elwig/Models/ClientParam.cs

@@ -0,0 +1,13 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("client_parameter"), PrimaryKey("Param")]
+    public class ClientParam {
+        [Column("param")]
+        public string Param { get; set; }
+
+        [Column("value")]
+        public string? Value { get; set; }
+    }
+}

Elwig/Models/Contract.cs

@@ -1,30 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.Collections.Generic;
-using System.ComponentModel.DataAnnotations.Schema;
-using System.Linq;
-
-namespace Elwig.Models {
-    [Table("contract"), PrimaryKey("VNr")]
-    public class Contract {
-        [Column("vnr")]
-        public int VNr { get; set; }
-
-        [Column("mgnr")]
-        public int MgNr { get; set; }
-
-        [Column("year_from")]
-        public int YearFrom { get; set; }
-
-        [Column("year_to")]
-        public int? YearTo { get; set; }
-
-        [ForeignKey("MgNr")]
-        public virtual Member Member { get; private set; }
-
-        [InverseProperty("Contract")]
-        public virtual ISet<AreaCommitment> AreaCommitments { get; private set; }
-
-        [NotMapped]
-        public int Area => AreaCommitments.Select(a => a.Area).Sum();
-    }
-}

Elwig/Models/Country.cs

@@ -1,18 +1,18 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
-    [Table("country"), PrimaryKey("Alpha2")]
+    [Table("country"), PrimaryKey("Num"), Index("Alpha2", IsUnique = true), Index("Alpha3", IsUnique = true)]
     public class Country {
+        [Column("num")]
+        public int Num { get; private set; }
+
         [Column("alpha2")]
         public string Alpha2 { get; private set; }
 
         [Column("alpha3")]
         public string Alpha3 { get; private set; }
 
-        [Column("num")]
-        public int Num { get; private set; }
-
         [Column("name")]
         public string Name { get; private set; }
 

Elwig/Models/Currency.cs

@@ -0,0 +1,23 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("currency"), PrimaryKey("Code")]
+    public class Currency {
+        [Column("code")]
+        public string Code { get; private set; }
+
+        [Column("name")]
+        public string Name { get; private set; }
+
+        [Column("symbol")]
+        public string? Symbol { get; private set; }
+
+        [Column("one_euro")]
+        public long? OneEuroValue { get; private set; }
+
+        [NotMapped]
+        public decimal? OneEuro => OneEuroValue != null ? Utils.DecFromDb(OneEuroValue.Value, 6) : null;
+    }
+}

Elwig/Models/Delivery.cs

@@ -0,0 +1,101 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+namespace Elwig.Models {
+    [Table("delivery"), PrimaryKey("Year", "DId"), Index("DateString", "ZwstId", "LNr", IsUnique = true), Index("LsNr", IsUnique = true)]
+    public class Delivery {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("did")]
+        public int DId { get; set; }
+
+        [Column("date")]
+        public string DateString { get; set; }
+
+        [NotMapped]
+        public DateOnly Date {
+            get {
+                return DateOnly.ParseExact(DateString, "yyyy-MM-dd");
+            }
+            set {
+                DateString = value.ToString("yyyy-MM-dd");
+            }
+        }
+
+        [Column("time")]
+        public string? TimeString { get; set; }
+
+        [NotMapped]
+        public TimeOnly? Time {
+            get {
+                return (TimeString == null) ? null : TimeOnly.ParseExact(TimeString, "HH:mm:ss");
+            }
+            set {
+                TimeString = value?.ToString("HH:mm:ss");
+            }
+        }
+
+        [NotMapped]
+        public DateTime DateTime {
+            get {
+                return Date.ToDateTime(Time ?? TimeOnly.MinValue);
+            }
+            set {
+                Date = DateOnly.FromDateTime(value);
+                Time = TimeOnly.FromDateTime(value);
+            }
+        }
+
+        [Column("zwstid")]
+        public string ZwstId { get; set; }
+
+        [ForeignKey("ZwstId")]
+        public virtual Branch Branch { get; private set; }
+
+        [Column("lnr")]
+        public int LNr { get; set; }
+
+        [Column("lsnr")]
+        public string LsNr { get; set; }
+
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [InverseProperty("Delivery")]
+        public virtual ISet<DeliveryPart> Parts { get; private set; }
+
+        public int Weight => Parts.Select(p => p.Weight).Sum();
+
+        public IEnumerable<string> SortIds => Parts
+            .GroupBy(p => p.SortId)
+            .OrderByDescending(g => g.Select(p => p.Weight).Sum())
+            .Select(g => g.Select(p => p.SortId).First());
+
+        public string SortIdString => string.Join(", ", SortIds);
+
+        public double Kmw => Utils.AggregateDeliveryPartsKmw(Parts);
+
+        public double Oe => Utils.KmwToOe(Kmw);
+
+        public int SearchScore(IEnumerable<string> keywords) {
+            var list = new string?[] {
+                LsNr, Time?.ToString("HH:mm"),
+                Member.FamilyName, Member.MiddleName, Member.GivenName, Member.BillingAddress?.Name,
+                Comment
+            }.ToList();
+            list.AddRange(Parts.Select(p => p.Comment).Distinct());
+            return Utils.GetSearchScore(list, keywords);
+        }
+    }
+}

Elwig/Models/DeliveryPart.cs

@@ -0,0 +1,112 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+namespace Elwig.Models {
+    [Table("delivery_part"), PrimaryKey("Year", "DId", "DPNr")]
+    public class DeliveryPart {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("did")]
+        public int DId { get; set; }
+
+        [ForeignKey("Year, DId")]
+        public virtual Delivery Delivery { get; private set; }
+
+        [Column("dpnr")]
+        public int DPNr { get; set; }
+
+        [Column("sortid")]
+        public string SortId { get; set; }
+
+        [ForeignKey("SortId")]
+        public virtual WineVar Variant { get; private set; }
+
+        [Column("weight")]
+        public int Weight { get; set; }
+
+        [Column("kmw")]
+        public double Kmw { get; set; }
+
+        [NotMapped]
+        public double Oe {
+            get {
+                return Utils.KmwToOe(Kmw);
+            }
+            set {
+                Kmw = Utils.OeToKmw(value);
+            }
+        }
+
+        [Column("qualid")]
+        public string QualId { get; set; }
+
+        [ForeignKey("QualId")]
+        public virtual WineQualLevel Quality { get; private set; }
+
+        [Column("hkid")]
+        public string HkId { get; set; }
+
+        [ForeignKey("HkId")]
+        public virtual WineOrigin Origin { get; private set; }
+
+        [Column("kgnr")]
+        public int? KgNr { get; set; }
+
+        [ForeignKey("KgNr")]
+        public virtual WbKg? Kg { get; private set; }
+
+        [Column("rdnr")]
+        public int? RdNr { get; set; }
+
+        [ForeignKey("KgNr, RdNr")]
+        public virtual WbRd? Rd { get; private set; }
+
+        [Column("gerebelt")]
+        public bool IsGerebelt { get; set; }
+
+        [Column("manual_weighing")]
+        public bool ManualWeighing { get; set; }
+
+        [Column("spl_check")]
+        public bool SplCheck { get; set; }
+
+        [Column("hand_picked")]
+        public bool? IsHandPicked { get; set; }
+
+        [Column("lesewagen")]
+        public bool? IsLesewagen { get; set; }
+
+        [Column("temperature")]
+        public double? Temperature { get; set; }
+
+        [Column("acid")]
+        public double? Acid { get; set; }
+
+        [Column("scale_id")]
+        public string? ScaleId { get; set; }
+
+        [Column("weighing_id")]
+        public string? WeighingId { get; set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [InverseProperty("Part")]
+        public virtual ISet<DeliveryPartAttr> PartAttributes { get; private set; }
+
+        [NotMapped]
+        public IEnumerable<WineAttr> Attributes => PartAttributes.Select(a => a.Attr);
+
+        [InverseProperty("Part")]
+        public virtual ISet<DeliveryPartModifier> PartModifiers { get; private set; }
+
+        [NotMapped]
+        public IEnumerable<Modifier> Modifiers => PartModifiers.Select(m => m.Modifier).OrderBy(m => m.Ordering);
+
+        public string OriginString => Origin.OriginString + "\n" + (Kg?.Gl != null ? $" / {Kg.Gl.Name}" : "") + (Kg != null ? $" / {Kg.AtKg.Gem.Name} / KG {Kg.AtKg.Name}" : "") + (Rd != null ? $" / Ried {Rd.Name}" : "");
+    }
+}

Elwig/Models/DeliveryPartAttr.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("delivery_part_attribute"), PrimaryKey("Year", "DId", "DPNr", "AttrId")]
+    public class DeliveryPartAttr {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("did")]
+        public int DId { get; set; }
+
+        [Column("dpnr")]
+        public int DPNr { get; set; }
+
+        [ForeignKey("Year, DId, DPNr")]
+        public virtual DeliveryPart Part { get; private set; }
+
+        [Column("attrid")]
+        public string AttrId { get; set; }
+
+        [ForeignKey("AttrId")]
+        public virtual WineAttr Attr { get; private set; }
+    }
+}

Elwig/Models/DeliveryPartModifier.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("delivery_part_modifier"), PrimaryKey("Year", "DId", "DPNr", "ModId")]
+    public class DeliveryPartModifier {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("did")]
+        public int DId { get; set; }
+
+        [Column("dpnr")]
+        public int DPNr { get; set; }
+
+        [ForeignKey("Year, DId, DPNr")]
+        public virtual DeliveryPart Part { get; private set; }
+
+        [Column("modid")]
+        public string ModId { get; set; }
+
+        [ForeignKey("Year, ModId")]
+        public virtual Modifier Modifier { get; private set; }
+    }
+}

Elwig/Models/Graph.cs

@@ -0,0 +1,123 @@
+using Newtonsoft.Json.Linq;
+using ScottPlot;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.Contracts;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Markup;
+
+namespace Elwig.Models {
+    public class Graph : ICloneable {
+
+        public string Type { get; set; }
+        public int Num { get; set; }
+        private int MinX { get; set; }
+        private int MaxX { get; set; }
+        public string Contracts { get; set; }
+        public double[] DataX { get; set; }
+        public double[] DataY { get; set; }
+
+        public Graph(int num, int minX, int maxX) {
+            Type = "oe";
+            Num = num;
+            Contracts = "";
+            MinX = minX;
+            MaxX = maxX;
+
+            DataX = DataGen.Range(MinX, MaxX + 1);
+            DataY = DataGen.Zeros(MaxX - MinX + 1);
+        }
+
+        public Graph(string type, int num, JToken graphData, string contracts, int minX, int maxX) {
+            Type = type;
+            Num = num;
+            Contracts =  contracts;
+            MinX = minX;
+            MaxX = maxX;
+
+            DataX = DataGen.Range(MinX, MaxX + 1);
+            DataY = DataGen.Zeros(MaxX - MinX + 1);
+            ParseGraphData(graphData);
+        }
+
+        public Graph(string type, int num, int minX, int maxX, string contracts, double[] dataX, double[] dataY) {
+            Type = type;
+            Num = num;
+            MinX = minX;
+            MaxX = maxX;
+            Contracts = contracts;
+            DataX = dataX;
+            DataY = dataY;
+        }
+
+        private void ParseGraphData(JToken graphData) {
+            var GraphPoints = graphData.Children().OfType<JProperty>().ToDictionary(p => int.Parse(p.Name[..^2]), p => (double)p.Value);
+
+            if (GraphPoints.Keys.Count < 1) {
+                return;
+            }
+
+            var minKey = GraphPoints.Keys.Order().First();
+            var maxKey = GraphPoints.Keys.OrderDescending().First();
+
+            if (!GraphPoints.ContainsKey(MinX)) {
+                GraphPoints.Add(MinX, GraphPoints.GetValueOrDefault(minKey));
+            }
+            if (!GraphPoints.ContainsKey(MaxX)) {
+                GraphPoints.Add(MaxX, GraphPoints.GetValueOrDefault(maxKey));
+            }
+
+            var keys = GraphPoints.Keys.Order().ToArray();
+
+            for (int i = 0; i < keys.Length; i++) {
+                double point1Value = GraphPoints[keys[i]];
+                if (i + 1 < keys.Length) {
+                    double point2Value = GraphPoints[keys[i + 1]];
+                    if (point1Value == point2Value) {
+                        for (int j = keys[i] - MinX; j < keys[i + 1] - MinX; j++) {
+                            DataY[j] = point1Value;
+                        }
+                    } else {
+                        int steps = Math.Abs(keys[i + 1] - keys[i]);
+                        double step = (point2Value - point1Value) / steps;
+
+                        DataY[keys[i] - MinX] = point1Value;
+                        DataY[keys[i + 1] - MinX] = point2Value;
+
+                        for (int j = keys[i] - MinX; j < keys[i + 1] - MinX - 1; j++) {
+                            DataY[j + 1] = Math.Round(DataY[j] + step, 4); // TODO richtig runden
+                        }
+                    }
+                }
+                else {
+                    for (int j = keys[i] - MinX; j < DataX.Length; j++) {
+                        DataY[j] = point1Value;
+                    }
+                }
+            }
+        }
+
+        public JObject ToJson() {
+            JObject graph = new();
+
+            if (DataY[0] != DataY[1]) {
+                graph.Add(new JProperty(DataX[0] + Type.ToLower(), Math.Round(DataY[0], 4)));
+            }
+            for (int i = 1; i < DataX.Length - 1; i++) {
+                if (Math.Round(DataY[i] - DataY[i - 1], 4) != Math.Round(DataY[i + 1] - DataY[i], 4)) {
+                    graph.Add(new JProperty(DataX[i] + Type.ToLower(), Math.Round(DataY[i], 4)));
+                }
+            }
+            if (DataY[^1] != DataY[^2]) {
+                graph.Add(new JProperty(DataX[^1] + Type.ToLower(), Math.Round(DataY[^1], 4)));
+            }
+            return graph;
+        }
+
+        public object Clone() {
+            return new Graph(Type, Num, MinX, MaxX, Contracts, (double[])DataX.Clone(), (double[])DataY.Clone());
+        }
+    }
+}

Elwig/Models/Member.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
@@ -34,14 +35,53 @@ namespace Elwig.Models {
         [Column("suffix")]
         public string? Suffix { get; set; }
 
+        public string Name =>
+            (Prefix != null ? Prefix + " " : "") +
+            GivenName + " " +
+            (MiddleName != null ? MiddleName + " " : "") +
+            FamilyName +
+            (Suffix != null ? " " + Suffix : "");
+
+        public string ShortName => GivenName + " " + FamilyName;
+
+        public string AdministrativeName => AdministrativeName1 + " " + AdministrativeName2;
+
+        public string AdministrativeName1 => FamilyName.ToUpper();
+
+        public string AdministrativeName2 =>
+            (Prefix != null ? Prefix + " " : "") +
+            GivenName +
+            (MiddleName != null ? " " + MiddleName : "") +
+            (Suffix != null ? " " + Suffix : "");
+
         [Column("birthday")]
         public string? Birthday { get; set; }
 
         [Column("entry_date")]
-        public string? EntryDate { get; set; }
+        public string? EntryDateString { get; set; }
+
+        [NotMapped]
+        public DateOnly? EntryDate {
+            get {
+                return EntryDateString != null ? DateOnly.ParseExact(EntryDateString, "yyyy-MM-dd") : null;
+            }
+            set {
+                EntryDateString = value?.ToString("yyyy-MM-dd");
+            }
+        }
 
         [Column("exit_date")]
-        public string? ExitDate { get; set; }
+        public string? ExitDateString { get; set; }
+
+        [NotMapped]
+        public DateOnly? ExitDate {
+            get {
+                return ExitDateString != null ? DateOnly.ParseExact(ExitDateString, "yyyy-MM-dd") : null;
+            }
+            set {
+                ExitDateString = value?.ToString("yyyy-MM-dd");
+            }
+        }
 
         [Column("business_shares")]
         public int BusinessShares { get; set; }
@@ -55,8 +95,8 @@ namespace Elwig.Models {
         [Column("lfbis_nr")]
         public string? LfbisNr { get; set; }
 
-        [Column("ustid")]
-        public string? UstId { get; set; }
+        [Column("ustid_nr")]
+        public string? UstIdNr { get; set; }
 
         [Column("volllieferant")]
         public bool IsVollLieferant { get; set; }
@@ -70,6 +110,9 @@ namespace Elwig.Models {
         [Column("active")]
         public bool IsActive { get; set; }
 
+        [Column("deceased")]
+        public bool IsDeceased { get; set; }
+
         [Column("iban")]
         public string? Iban { get; set; }
 
@@ -77,7 +120,7 @@ namespace Elwig.Models {
         public string? Bic { get; set; }
 
         [Column("country")]
-        public string CountryCode { get; set; }
+        public int CountryNum { get; set; }
 
         [Column("postal_dest")]
         public string PostalDestId { get; set; }
@@ -88,20 +131,14 @@ namespace Elwig.Models {
         [Column("email")]
         public string? Email { get; set; }
 
-        [Column("phone_landline")]
-        public string? PhoneLandline { get; set; }
-
-        [Column("phone_mobile_1")]
-        public string? PhoneMobile1 { get; set; }
-
-        [Column("phone_mobile_2")]
-        public string? PhoneMobile2 { get; set; }
-
         [Column("default_kgnr")]
         public int? DefaultKgNr { get; set; }
 
-        [Column("default_contact")]
-        public string DefaultContact { get; set; }
+        [Column("contact_postal")]
+        public bool ContactViaPost { get; set; }
+
+        [Column("contact_email")]
+        public bool ContactViaEmail { get; set; }
 
         [Column("comment")]
         public string? Comment { get; set; }
@@ -109,10 +146,10 @@ namespace Elwig.Models {
         [ForeignKey("PredecessorMgNr")]
         public virtual Member? Predecessor { get; private set; }
 
-        [ForeignKey("CountryCode")]
+        [ForeignKey("CountryNum")]
         public virtual Country Country { get; private set; }
 
-        [ForeignKey("CountryCode, PostalDestId")]
+        [ForeignKey("CountryNum, PostalDestId")]
         public virtual PostalDest PostalDest { get; private set; }
 
         [ForeignKey("DefaultKgNr")]
@@ -122,36 +159,33 @@ namespace Elwig.Models {
         public virtual Branch? Branch { get; private set; }
 
         [InverseProperty("Member")]
-        public virtual ISet<Contract> Contracts { get; private set; }
+        public virtual ISet<AreaCom> AreaCommitments { get; private set; }
+
+        [NotMapped]
+        public IEnumerable<AreaCom> ActiveAreaCommitments => AreaCommitments
+            .Where(c => c.YearFrom <= Utils.CurrentNextSeason && (c.YearTo ?? int.MaxValue) >= Utils.CurrentNextSeason);
 
         [InverseProperty("Member")]
-        public virtual BillingAddress BillingAddress { get; private set; }
+        public virtual BillingAddr? BillingAddress { get; private set; }
+
+        [InverseProperty("Member")]
+        public virtual ISet<Delivery> Deliveries { get; private set; }
+
+        [InverseProperty("Member")]
+        public virtual ISet<MemberTelNr> TelephoneNumbers { get; private set; }
+
+        public string FullAddress => $"{Address}, {PostalDest.AtPlz.Plz} {PostalDest.AtPlz.Ort.Name}";
+
+        public int DeliveryRight => BusinessShares * App.Client.DeliveryRight;
+        public int DeliveryObligation => BusinessShares * App.Client.DeliveryObligation;
 
         public int SearchScore(IEnumerable<string> keywords) {
-            keywords = keywords.Where(s => s.Length >= 2 || (s.Length > 0 && s.All(c => char.IsDigit(c))));
-            if (!keywords.Any())
-                return 0;
-
-            string?[] check = new string?[] {
+            return Utils.GetSearchScore(new string?[] {
                 MgNr.ToString(),
-                FamilyName.ToLower(), MiddleName?.ToLower(), GivenName.ToLower(),
-                BillingAddress?.Name.ToLower(),
-                Comment?.ToLower(),
-            };
-
-            int i = 0;
-            foreach (string? c in check) {
-                if (c == null) {
-                    continue;
-                } else if (keywords.Any(f => c == f)) {
-                    i += 100;
-                } else if (keywords.Any(f => c.Split(" ").Any(a => a == f))) {
-                    i += 99;
-                } else if (keywords.Any(f => f != null && c.Contains(f))) {
-                    i += 1;
-                }
-            }
-            return i;
+                FamilyName, MiddleName, GivenName,
+                BillingAddress?.Name,
+                Comment,
+            }, keywords);
         }
     }
 }

Elwig/Models/MemberTelNr.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("member_telephone_number"), PrimaryKey("MgNr", "Nr")]
+    public class MemberTelNr {
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [Column("nr")]
+        public int Nr { get; set; }
+
+        [Column("type")]
+        public string Type { get; set; }
+
+        [Column("number")]
+        public string Number { get; set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+    }
+}

Elwig/Models/Modifier.cs

@@ -0,0 +1,58 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+namespace Elwig.Models {
+    [Table("modifier"), PrimaryKey("Year", "ModId")]
+    public class Modifier {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("modid")]
+        public string ModId { get; set; }
+
+        [Column("ordering")]
+        public int Ordering { get; set; }
+
+        [Column("name")]
+        public string Name { get; set; }
+
+        [Column("abs")]
+        public long? AbsValue { get; set; }
+
+        [NotMapped]
+        public decimal? Abs {
+            get => AbsValue != null ? Season.DecFromDb(AbsValue.Value) : null;
+            set => AbsValue = value != null ? Season.DecToDb(value.Value) : null;
+        }
+
+        [Column("rel")]
+        public double? RelValue { get; set; }
+
+        [NotMapped]
+        public decimal? Rel {
+            get => (decimal?)RelValue;
+            set => RelValue = (double?)value;
+        }
+
+        [Column("standard")]
+        public bool IsStandard { get; set; }
+
+        [Column("quick_select")]
+        public bool IsQuickSelect { get; set; }
+
+        [ForeignKey("Year")]
+        public virtual Season Season { get; private set; }
+
+        public string ValueStr =>
+            (Abs != null) ? $"{Utils.GetSign(Abs.Value)}{Math.Abs(Abs.Value).ToString("0." + string.Concat(Enumerable.Repeat('0', Season.Precision)))}\u00a0{Season.Currency.Symbol}/kg" :
+            (Rel != null) ? $"{Utils.GetSign(Rel.Value)}{(Math.Abs(Rel.Value) < 0.1m ? "\u2007" : "")}{Math.Abs(Rel.Value):0.00##\u00a0%}" :
+            "";
+
+        public override string ToString() {
+            return Name;
+        }
+    }
+}

Elwig/Models/PaymentVar.cs

@@ -0,0 +1,69 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("payment_variant"), PrimaryKey("Year", "AvNr")]
+    public class PaymentVar {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("avnr")]
+        public int AvNr { get; set; }
+
+        [Column("name")]
+        public string Name { get; set; }
+
+        [Column("date")]
+        public string DateString { get; set; }
+
+        [NotMapped]
+        public DateOnly Date {
+            get {
+                return DateOnly.ParseExact(DateString, "yyyy-MM-dd");
+            }
+            set {
+                DateString = value.ToString("yyyy-MM-dd");
+            }
+        }
+
+        [Column("test_variant")]
+        public bool TestVariant { get; set; }
+
+        [Column("calc_time")]
+        public int? CalcTime { get; set; }
+
+        [Column("bucket_1_name")]
+        public string? Bucket1Name { get; set; }
+
+        [Column("bucket_2_name")]
+        public string? Bucket2Name { get; set; }
+
+        [Column("bucket_3_name")]
+        public string? Bucket3Name { get; set; }
+
+        [Column("bucket_4_name")]
+        public string? Bucket4Name { get; set; }
+
+        [Column("bucket_5_name")]
+        public string? Bucket5Name { get; set; }
+
+        [Column("bucket_6_name")]
+        public string? Bucket6Name { get; set; }
+
+        [Column("bucket_7_name")]
+        public string? Bucket7Name { get; set; }
+
+        [Column("bucket_8_name")]
+        public string? Bucket8Name { get; set; }
+
+        [Column("bucket_9_name")]
+        public string? Bucket9Name { get; set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [Column("data")]
+        public string Data { get; set; }
+    }
+}

Elwig/Models/PostalDest.cs

@@ -1,16 +1,16 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
-    [Table("postal_dest"), PrimaryKey("CountryCode", "Id")]
+    [Table("postal_dest"), PrimaryKey("CountryNum", "Id")]
     public class PostalDest {
         [Column("country")]
-        public string CountryCode { get; private set; }
+        public int CountryNum { get; private set; }
 
         [Column("id")]
         public string Id { get; private set; }
 
-        [ForeignKey("CountryCode")]
+        [ForeignKey("CountryNum")]
         public virtual Country Country { get; private set; }
 
         [ForeignKey("Id")]

Elwig/Models/Season.cs

@@ -0,0 +1,59 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("season"), PrimaryKey("Year")]
+    public class Season {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("currency")]
+        public string CurrencyCode { get; set; }
+
+        [Column("precision")]
+        public byte Precision { get; set; }
+
+        [Column("start_date")]
+        public string? StartDateString { get; set; }
+
+        [NotMapped]
+        public DateOnly? StartDate {
+            get {
+                return StartDateString != null ? DateOnly.ParseExact(StartDateString, "yyyy-MM-dd") : null;
+            }
+            set {
+                StartDateString = value?.ToString("yyyy-MM-dd");
+            }
+        }
+
+        [Column("end_date")]
+        public string? EndDateString { get; set; }
+
+        [NotMapped]
+        public DateOnly? EndDate {
+            get {
+                return EndDateString != null ? DateOnly.ParseExact(EndDateString, "yyyy-MM-dd") : null;
+            }
+            set {
+                EndDateString = value?.ToString("yyyy-MM-dd");
+            }
+        }
+
+        [ForeignKey("CurrencyCode")]
+        public virtual Currency Currency { get; private set; }
+
+        [InverseProperty("Season")]
+        public virtual ISet<Modifier> Modifiers { get; private set; }
+
+        public decimal DecFromDb(long value) {
+            return Utils.DecFromDb(value, Precision);
+        }
+
+        public long DecToDb(decimal value) {
+            return Utils.DecToDb(value, Precision);
+        }
+    }
+}

Elwig/Models/WbGem.cs

@@ -0,0 +1,19 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("wb_gem"), PrimaryKey("Gkz")]
+    public class WbGem {
+        [Column("gkz")]
+        public int Gkz { get; private set; }
+
+        [Column("hkid")]
+        public string HkId { get; private set; }
+
+        [ForeignKey("Gkz")]
+        public virtual AT_Gem AtGem { get; private set; }
+
+        [ForeignKey("HkId")]
+        public virtual WineOrigin Origin { get; private set; }
+    }
+}

Elwig/Models/WbGl.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("wb_gl"), PrimaryKey("GlNr")]
+    public class WbGl {
+        [Column("glnr")]
+        public int GlNr { get; private set; }
+
+        [Column("name")]
+        public string Name { get; private set; }
+
+        [InverseProperty("Gl")]
+        public virtual ISet<WbKg> Kgs { get; private set; }
+    }
+}

Elwig/Models/WbKg.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -11,6 +12,18 @@ namespace Elwig.Models {
         public int? GlNr { get; set; }
 
         [ForeignKey("KgNr")]
-        public virtual AT_Kg Kg { get; private set; }
+        public virtual AT_Kg AtKg { get; private set; }
+
+        [ForeignKey("GlNr")]
+        public virtual WbGl Gl { get; private set; }
+
+        [InverseProperty("Kg")]
+        public virtual ISet<WbRd> Rds { get; private set; }
+
+        [NotMapped]
+        public WbGem Gem => AtKg.Gem.WbGem;
+
+        [NotMapped]
+        public WineOrigin Origin => Gem.Origin;
     }
 }

Elwig/Models/WbRd.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -14,6 +14,6 @@ namespace Elwig.Models {
         public string Name { get; set; }
 
         [ForeignKey("KgNr")]
-        public virtual WbKg WbKg { get; private set; }
+        public virtual WbKg Kg { get; private set; }
     }
 }

Elwig/Models/WineAttr.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -10,7 +10,13 @@ namespace Elwig.Models {
         [Column("name")]
         public string Name { get; set; }
 
-        [Column("kg_per_ha")]
-        public int KgPerHa { get; set; }
+        [Column("max_kg_per_ha")]
+        public int? MaxKgPerHa { get; set; }
+
+        [Column("active")]
+        public bool IsActive { get; set; }
+        public override string ToString() {
+            return Name;
+        }
     }
 }

Elwig/Models/WineCult.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {

Elwig/Models/WineOrigin.cs

@@ -0,0 +1,46 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+namespace Elwig.Models {
+    [Table("wine_origin"), PrimaryKey("HkId"), Index("Name", IsUnique = true)]
+    public class WineOrigin {
+        [Column("hkid")]
+        public string HkId { get; private set; }
+
+        [Column("parent_hkid")]
+        public string? ParentHkId { get; private set; }
+
+        [ForeignKey("ParentHkId")]
+        public virtual WineOrigin? Parent { get; private set; }
+
+        [Column("name")]
+        public string Name { get; private set; }
+
+        [Column("blnr")]
+        public int? BlNr { get; private set; }
+
+        [InverseProperty("Origin")]
+        public virtual ISet<WbGem> Gems { get; private set; }
+
+        [InverseProperty("Parent")]
+        public virtual ISet<WineOrigin> Children { get; private set; }
+
+        public int Level => (Parent?.Level + 1) ?? 0;
+
+        public string HkIdLevel => $"{new string(' ', Level * 2)}{HkId}";
+
+        public int TotalChildNum => 1 + Children.Select(c => c.TotalChildNum).Sum();
+
+        private int SortKey1 => (Parent?.SortKey1 ?? 0) | (TotalChildNum << ((3 - Level) * 8));
+        public int SortKey => SortKey1 | ((Level < 3) ? (-1 >>> (Level * 8 + 8)) : 0);
+
+        public override string ToString() {
+            return Name;
+        }
+
+        public string OriginString => (Parent != null ? $"{Parent.OriginString} / " : "") + Name;
+    }
+}

Elwig/Models/WineQual.cs

@@ -1,22 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace Elwig.Models {
-    [Table("wine_quality"), PrimaryKey("QualId")]
-    public class WineQual {
-        [Column("qualid")]
-        public string QualId { get; private set; }
-
-        [Column("origin_level")]
-        public int? OriginLevel { get; private set; }
-
-        [Column("name")]
-        public string Name { get; private set; }
-
-        [Column("from_kmw")]
-        public double? FromKmw { get; private set; }
-
-        [Column("to_kmw")]
-        public double? ToKmw { get; private set; }
-    }
-}

Elwig/Models/WineQualLevel.cs

@@ -0,0 +1,47 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Configuration;
+using System.Security.Cryptography.Pkcs;
+
+namespace Elwig.Models {
+    [Table("wine_quality_level"), PrimaryKey("QualId")]
+    public class WineQualLevel : IEquatable<WineQualLevel> {
+        [Column("qualid")]
+        public string QualId { get; private set; }
+
+        [Column("origin_level")]
+        public int? OriginLevel { get; private set; }
+
+        [Column("predicate")]
+        public bool IsPredicate { get; private set; }
+
+        [Column("min_kmw")]
+        public double? MinKmw { get; private set; }
+
+        [NotMapped]
+        public double? MinOe => MinKmw != null ? Utils.KmwToOe((double)MinKmw) : null;
+
+        [Column("name")]
+        public string Name { get; private set; }
+
+        public string MinKmwStr => (MinKmw == null) ? "" : $"(mind. {MinKmw:#.0}°)";
+
+        public override bool Equals(object? obj) {
+            return Equals(obj as WineQualLevel);
+        }
+
+        public bool Equals(WineQualLevel? obj) {
+            return QualId == obj?.QualId;
+        }
+
+        public static bool operator ==(WineQualLevel? q1, WineQualLevel? q2) {
+            return q1?.Equals(q2) ?? Equals(q1, q2);
+        }
+
+        public static bool operator !=(WineQualLevel? q1, WineQualLevel? q2) {
+            return !(q1?.Equals(q2) ?? Equals(q1, q2));
+        }
+    }
+}

Elwig/Models/WineVar.cs

@@ -1,4 +1,4 @@
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -15,5 +15,11 @@ namespace Elwig.Models {
 
         [Column("comment")]
         public string? Comment { get; private set; }
+
+        public string CommentFormat => (Comment != null) ? $" ({Comment})" : "";
+
+        public override string ToString() {
+            return Name;
+        }
     }
 }

Elwig/Properties/PublishProfiles/FolderProfile.pubxml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121.
+-->
+<Project>
+  <PropertyGroup>
+    <Configuration>Release</Configuration>
+    <Platform>Any CPU</Platform>
+    <PublishDir>bin\Publish</PublishDir>
+    <PublishProtocol>FileSystem</PublishProtocol>
+    <_TargetId>Folder</_TargetId>
+    <TargetFramework>net7.0-windows</TargetFramework>
+    <RuntimeIdentifier>win-x64</RuntimeIdentifier>
+    <SelfContained>true</SelfContained>
+    <PublishSingleFile>false</PublishSingleFile>
+    <PublishReadyToRun>false</PublishReadyToRun>
+  </PropertyGroup>
+</Project>

Elwig/Windows/AdministrationWindow.cs

@@ -1,47 +1,100 @@
-using Elwig.Helpers;
+using Elwig.Helpers;
 using Elwig.Models;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Threading;
+using Xceed.Wpf.Toolkit;
 
 namespace Elwig.Windows {
     public abstract class AdministrationWindow : ContextWindow {
+
         protected Control[] ExemptInputs { private get; set; }
         protected Control[] RequiredInputs { private get; set; }
+
+        private bool _IsEditing;
+        private bool _IsCreating;
+        protected bool IsEditing {
+            get { return _IsEditing; }
+            set {
+                _IsEditing = value;
+                LockContext = IsEditing;
+            }
+        }
+        protected bool IsCreating {
+            get { return _IsCreating; }
+            set {
+                _IsCreating = value;
+                LockContext = IsEditing;
+            }
+        }
+        protected bool IsClosing { get; private set; }
+
         private TextBox[] TextBoxInputs;
+        private TextBox[] PlzInputs;
         private ComboBox[] ComboBoxInputs;
+        private ComboBox[] PlzOrtInputs;
+        private CheckComboBox[] CheckComboBoxInputs;
         private CheckBox[] CheckBoxInputs;
         private RadioButton[] RadioButtonInputs;
         private readonly Dictionary<Control, bool> Valid;
         private readonly Dictionary<Control, object?> OriginalValues;
+        private readonly Dictionary<Control, object?> DefaultValues;
 
         public AdministrationWindow() : base() {
+            IsEditing = false;
+            IsCreating = false;
             ExemptInputs = Array.Empty<Control>();
             RequiredInputs = Array.Empty<Control>();
             TextBoxInputs = Array.Empty<TextBox>();
+            PlzInputs = Array.Empty<TextBox>();
             ComboBoxInputs = Array.Empty<ComboBox>();
+            CheckComboBoxInputs = Array.Empty<CheckComboBox>();
+            PlzOrtInputs = Array.Empty<ComboBox>();
             CheckBoxInputs = Array.Empty<CheckBox>();
             RadioButtonInputs = Array.Empty<RadioButton>();
             Valid = new();
             OriginalValues = new();
+            DefaultValues = new();
+            Closing += OnClosing;
             Loaded += OnLoaded;
         }
 
         private void OnLoaded(object sender, RoutedEventArgs evt) {
-            TextBoxInputs = Utils.FindVisualChilds<TextBox>(this, ExemptInputs).ToArray();
-            ComboBoxInputs = Utils.FindVisualChilds<ComboBox>(this, ExemptInputs).ToArray();
-            CheckBoxInputs = Utils.FindVisualChilds<CheckBox>(this, ExemptInputs).ToArray();
-            RadioButtonInputs = Utils.FindVisualChilds<RadioButton>(this, ExemptInputs).ToArray();
+            TextBoxInputs = ControlUtils.FindAllChildren<TextBox>(this, ExemptInputs).ToArray();
+            ComboBoxInputs = ControlUtils.FindAllChildren<ComboBox>(this, ExemptInputs).ToArray();
+            CheckBoxInputs = ControlUtils.FindAllChildren<CheckBox>(this, ExemptInputs).ToArray();
+            CheckComboBoxInputs = ControlUtils.FindAllChildren<CheckComboBox>(this, ExemptInputs).ToArray();
+            RadioButtonInputs = ControlUtils.FindAllChildren<RadioButton>(this, ExemptInputs).ToArray();
+            PlzInputs = TextBoxInputs.Where(tb => "PLZ".Equals(tb.Tag)).ToArray();
+            PlzOrtInputs = PlzInputs.Select(tb => ControlUtils.FindNextSibling<ComboBox>(tb) ?? throw new MissingMemberException()).ToArray();
             foreach (var tb in TextBoxInputs)
                 Valid[tb] = true;
+            foreach (var cb in ComboBoxInputs)
+                cb.SelectionChanged += ComboBox_SelectionChanged;
+            foreach (var cb in CheckComboBoxInputs)
+                cb.ItemSelectionChanged += ComboBox_SelectionChanged;
+        }
+
+        private void OnClosing(object? sender, CancelEventArgs evt) {
+            IsClosing = true;
+        }
+
+        private ComboBox GetPlzOrtInput(TextBox input) {
+            return PlzOrtInputs[Array.IndexOf(PlzInputs, input)];
         }
 
         abstract protected void UpdateButtons();
 
+        protected override async Task RenewContext() {
+            for (int i = 0; i < PlzInputs.Length; i++)
+                UpdatePlz(PlzInputs[i], PlzOrtInputs[i]);
+        }
+
         protected void ValidateInput(Control input, bool valid) {
             Valid[input] = valid;
         }
@@ -50,29 +103,48 @@ namespace Elwig.Windows {
             return (sender is Control c) && RequiredInputs.Contains(c);
         }
 
+        protected void FinishInputFilling() {
+            FillOriginalValues();
+            ValidateDefaultValues();
+            ValidateRequiredInputs();
+        }
+
         protected void ClearInputStates() {
             foreach (var tb in TextBoxInputs)
-                Utils.ClearInputState(tb);
+                ControlUtils.ClearInputState(tb);
             foreach (var cb in ComboBoxInputs)
-                Utils.ClearInputState(cb);
+                ControlUtils.ClearInputState(cb);
+            foreach (var ccb in CheckComboBoxInputs)
+                ControlUtils.ClearInputState(ccb);
             foreach (var cb in CheckBoxInputs)
-                Utils.ClearInputState(cb);
+                ControlUtils.ClearInputState(cb);
             foreach (var rb in RadioButtonInputs)
-                Utils.ClearInputState(rb);
+                ControlUtils.ClearInputState(rb);
         }
 
         protected void ValidateRequiredInputs() {
             foreach (var input in RequiredInputs) {
                 if (input is TextBox tb && tb.Text.Length == 0) {
-                    Utils.SetInputInvalid(input);
+                    ControlUtils.SetInputInvalid(input);
+                    Valid[input] = false;
+                } else if (input is ComboBox cb && cb.SelectedItem == null && cb.ItemsSource != null) {
+                    ControlUtils.SetInputInvalid(input);
+                } else if (input is CheckComboBox ccb && ccb.SelectedItem == null && ccb.ItemsSource != null) {
+                    ControlUtils.SetInputInvalid(input);
+                } else if (input is CheckBox ckb && ckb.IsChecked != true) {
+                    ControlUtils.SetInputInvalid(input);
+                    Valid[input] = false;
+                } else if (input is RadioButton rb && rb.IsChecked != true) {
+                    ControlUtils.SetInputInvalid(input);
                     Valid[input] = false;
-                } else if (input is ComboBox cb && cb.SelectedItem == null) {
-                    Utils.SetInputInvalid(input);
                 }
             }
-            foreach (var cb in ComboBoxInputs) {
-                if (cb.ItemsSource != null && cb.SelectedItem == null)
-                    Utils.SetInputInvalid(cb);
+        }
+
+        protected void ValidateDefaultValues() {
+            foreach (var input in DefaultValues.Keys) {
+                if (InputIsNotDefault(input))
+                    ControlUtils.SetInputNotDefault(input);
             }
         }
 
@@ -81,6 +153,8 @@ namespace Elwig.Windows {
                 tb.IsReadOnly = true;
             foreach (var cb in ComboBoxInputs)
                 cb.IsEnabled = false;
+            foreach (var ccb in CheckComboBoxInputs)
+                ccb.IsEnabled = false;
             foreach (var cb in CheckBoxInputs)
                 cb.IsEnabled = false;
             foreach (var rb in RadioButtonInputs)
@@ -92,6 +166,8 @@ namespace Elwig.Windows {
                 tb.IsReadOnly = false;
             foreach (var cb in ComboBoxInputs)
                 cb.IsEnabled = true;
+            foreach (var ccb in CheckComboBoxInputs)
+                ccb.IsEnabled = true;
             foreach (var cb in CheckBoxInputs)
                 cb.IsEnabled = true;
             foreach (var rb in RadioButtonInputs)
@@ -102,31 +178,81 @@ namespace Elwig.Windows {
             OriginalValues.Clear();
         }
 
+        protected void ClearDefaultValues() {
+            DefaultValues.Clear();
+        }
+
         protected void FillOriginalValues() {
             foreach (var tb in TextBoxInputs)
                 OriginalValues[tb] = tb.Text;
             foreach (var cb in ComboBoxInputs)
                 OriginalValues[cb] = cb.SelectedItem;
+            foreach (var ccb in CheckComboBoxInputs)
+                OriginalValues[ccb] = ccb.SelectedItems.Cast<object>().ToArray();
             foreach (var cb in CheckBoxInputs)
-                OriginalValues[cb] = (cb.IsChecked ?? false) ? bool.TrueString : null;
+                OriginalValues[cb] = cb.IsChecked?.ToString();
             foreach (var rb in RadioButtonInputs)
-                OriginalValues[rb] = (rb.IsChecked ?? false) ? bool.TrueString : null;
+                OriginalValues[rb] = rb.IsChecked?.ToString();
         }
 
-        protected void ClearInputs() {
+        protected void SetOriginalValue(Control input, object? value) {
+            OriginalValues[input] = value is bool b ? b.ToString() : value;
+            if (InputHasChanged(input)) {
+                ControlUtils.SetInputChanged(input);
+            } else {
+                ControlUtils.ClearInputState(input);
+            }
+        }
+
+        protected void SetOriginalValue(Control input) {
+            SetOriginalValue(input, ControlUtils.GetInputValue(input));
+        }
+
+        protected void UnsetOriginalValue(Control input) {
+            OriginalValues.Remove(input);
+            ControlUtils.ClearInputState(input);
+        }
+
+        protected void SetDefaultValue(Control input, object? value) {
+            DefaultValues[input] = value is bool b ? b.ToString() : value;
+            if (!InputHasChanged(input)) {
+                if (InputIsNotDefault(input)) {
+                    ControlUtils.SetInputNotDefault(input);
+                } else {
+                    ControlUtils.ClearInputState(input);
+                }
+            }
+        }
+
+        protected void SetDefaultValue(Control input) {
+            SetDefaultValue(input, ControlUtils.GetInputValue(input));
+        }
+
+        protected void UnsetDefaultValue(Control input) {
+            DefaultValues.Remove(input);
+            if (!InputHasChanged(input)) {
+                ControlUtils.ClearInputState(input);
+            }
+        }
+
+        protected void ClearInputs(bool validate = true) {
             foreach (var tb in TextBoxInputs)
                 tb.Text = "";
             foreach (var cb in ComboBoxInputs)
                 cb.SelectedItem = null;
+            foreach (var ccb in CheckComboBoxInputs)
+                ccb.SelectedItems.Clear();
             foreach (var cb in CheckBoxInputs)
                 cb.IsChecked = false;
             foreach (var rb in RadioButtonInputs)
                 rb.IsChecked = false;
-            ValidateRequiredInputs();
+            if (validate) ValidateRequiredInputs();
         }
 
-        protected bool IsValid() {
-            return Valid.All(kv => kv.Value) && ComboBoxInputs.All(cb => cb.ItemsSource == null || cb.SelectedItem != null);
+        protected bool IsValid => Valid.All(kv => kv.Value);
+
+        protected bool GetInputValid(Control input) {
+            return Valid[input];
         }
 
         protected bool InputHasChanged(Control input) {
@@ -136,83 +262,122 @@ namespace Elwig.Windows {
                 return OriginalValues[tb]?.ToString() != tb.Text;
             } else if (input is ComboBox sb) {
                 return OriginalValues[sb] != sb.SelectedItem;
+            } else if (input is CheckComboBox ccb) {
+                return !ccb.SelectedItems.Cast<object>().ToArray().SequenceEqual(((object[]?)OriginalValues[ccb]) ?? Array.Empty<object>());
             } else if (input is CheckBox cb) {
-                return (OriginalValues[cb] != null) != (cb.IsChecked ?? false);
+                return (string?)OriginalValues[cb] != cb.IsChecked?.ToString();
             } else if (input is RadioButton rb) {
-                return (OriginalValues[rb] != null) != (rb.IsChecked ?? false);
+                return (string?)OriginalValues[rb] != rb.IsChecked?.ToString();
             } else {
                 return false;
             }
         }
 
-        protected bool HasChanged() {
-            return !IsValid() ||
-                TextBoxInputs.Any(InputHasChanged) ||
-                ComboBoxInputs.Any(InputHasChanged) ||
-                CheckBoxInputs.Any(InputHasChanged) ||
-                RadioButtonInputs.Any(InputHasChanged);
+        protected bool InputIsNotDefault(Control input) {
+            if (!DefaultValues.ContainsKey(input)) {
+                return false;
+            } else if (input is TextBox tb) {
+                return DefaultValues[tb]?.ToString() != tb.Text;
+            } else if (input is ComboBox sb) {
+                return DefaultValues[sb] != sb.SelectedItem;
+            } else if (input is CheckComboBox ccb) {
+                return !ccb.SelectedItems.Cast<object>().ToArray().SequenceEqual(((object[]?)DefaultValues[ccb]) ?? Array.Empty<object>());
+            } else if (input is CheckBox cb) {
+                return (string?)DefaultValues[cb] != cb.IsChecked?.ToString();
+            } else if (input is RadioButton rb) {
+                return (string?)DefaultValues[rb] != rb.IsChecked?.ToString();
+            } else {
+                return false;
+            }
         }
 
+        protected bool HasChanged =>
+            !IsValid ||
+            TextBoxInputs.Any(InputHasChanged) ||
+            ComboBoxInputs.Any(InputHasChanged) ||
+            CheckComboBoxInputs.Any(InputHasChanged) ||
+            CheckBoxInputs.Any(InputHasChanged) ||
+            RadioButtonInputs.Any(InputHasChanged);
+
         protected void UpdatePlz(TextBox plzInput, ComboBox ortInput) {
-            if (plzInput.Text.Length == 4) {
-                int plz = int.Parse(plzInput.Text);
-                ortInput.ItemsSource = Context.Postleitzahlen.Where(p => p.Plz == plz).ToHashSet();
-            } else {
-                ortInput.ItemsSource = null;
-            }
-            ortInput.SelectedItem = null;
-            if (ortInput.ItemsSource != null) {
-                Utils.SetInputInvalid(ortInput);
-            } else {
-                Utils.ClearInputState(ortInput);
-            }
-            ValidateInput(plzInput, SenderIsRequired(plzInput) || (ortInput.ItemsSource != null));
-            UpdateButtons();
+            var plzInputValid = GetInputValid(plzInput);
+            var item = ortInput.SelectedItem;
+            var list = plzInputValid && plzInput.Text.Length == 4 ? Context.Postleitzahlen.Find(int.Parse(plzInput.Text))?.Orte.ToList() : null;
+            ControlUtils.RenewItemsSource(ortInput, list, i => (i as AT_PlzDest)?.Id);
+            if (list != null && ortInput.SelectedItem == null && list.Count == 1)
+                ortInput.SelectedItem = list[0];
+            UpdateComboBox(ortInput);
         }
 
-        protected void InputTextChanged(TextBox input, Func<TextBox, bool, ValidationResult> checker) {
-            InputTextChanged(input, (tb, required, ctx) => checker(tb, required));
+        protected static void InitializeDelayTimer(TextBox tb, Action<object, TextChangedEventArgs> handler) {
+            var timer = new DispatcherTimer {
+                Interval = TimeSpan.FromMilliseconds(250)
+            };
+            timer.Tick += (object? sender, EventArgs evt) => {
+                timer.Stop();
+                var (oSender, oEvent) = ((object, TextChangedEventArgs))timer.Tag;
+                handler(oSender, oEvent);
+            };
+            tb.TextChanged += (object sender, TextChangedEventArgs evt) => {
+                timer.Stop();
+                timer.Tag = (sender, evt);
+                timer.Start();
+            };
         }
 
-        protected void InputTextChanged(TextBox input, Func<TextBox, bool, AppDbContext, ValidationResult> checker) {
-            InputTextChanged(input, checker(input, SenderIsRequired(input), Context));
+        protected bool InputTextChanged(TextBox input) {
+            return InputTextChanged(input, new ValidationResult(true, null));
         }
 
-        protected void InputTextChanged(TextBox input, ValidationResult res) {
+        protected bool InputTextChanged(TextBox input, Func<TextBox, bool, ValidationResult> checker) {
+            return InputTextChanged(input, (tb, required, ctx) => checker(tb, required));
+        }
+
+        protected bool InputTextChanged(TextBox input, Func<TextBox, bool, AppDbContext, ValidationResult> checker) {
+            return InputTextChanged(input, checker(input, SenderIsRequired(input), Context));
+        }
+
+        protected bool InputTextChanged(TextBox input, ValidationResult res) {
             ValidateInput(input, res.IsValid);
             if (res.IsValid) {
                 if (InputHasChanged(input)) {
-                    Utils.SetInputChanged(input);
+                    ControlUtils.SetInputChanged(input);
+                } else if (InputIsNotDefault(input)) {
+                    ControlUtils.SetInputNotDefault(input);
                 } else {
-                    Utils.ClearInputState(input);
+                    ControlUtils.ClearInputState(input);
                 }
             } else {
-                Utils.SetInputInvalid(input);
+                ControlUtils.SetInputInvalid(input);
             }
             UpdateButtons();
+            return res.IsValid;
         }
 
-        protected void InputLostFocus(TextBox input, Func<TextBox, bool, ValidationResult> checker, string? msg = null) {
-            InputLostFocus(input, (tb, requiered, ctx) => checker(tb, requiered), msg);
+        protected bool InputLostFocus(TextBox input, Func<TextBox, bool, ValidationResult> checker, string? msg = null) {
+            return InputLostFocus(input, (tb, requiered, ctx) => checker(tb, requiered), msg);
         }
 
-        protected void InputLostFocus(TextBox input, Func<TextBox, bool, AppDbContext, ValidationResult> checker, string? msg = null) {
-            InputLostFocus(input, checker(input, SenderIsRequired(input), Context), msg);
+        protected bool InputLostFocus(TextBox input, Func<TextBox, bool, AppDbContext, ValidationResult> checker, string? msg = null) {
+            return InputLostFocus(input, checker(input, SenderIsRequired(input), Context), msg);
         }
 
-        protected void InputLostFocus(TextBox input, ValidationResult res, string? msg = null) {
-            if (!res.IsValid)
-                MessageBox.Show(res.ErrorContent.ToString(), msg ?? res.ErrorContent.ToString(), MessageBoxButton.OK, MessageBoxImage.Warning);
+        protected bool InputLostFocus(TextBox input, ValidationResult res, string? msg = null) {
+            if (!res.IsValid && !IsClosing && (IsEditing || IsCreating))
+                System.Windows.MessageBox.Show(res.ErrorContent.ToString(), msg ?? res.ErrorContent.ToString(), MessageBoxButton.OK, MessageBoxImage.Warning);
+            return res.IsValid;
         }
 
         protected void CheckBox_Changed(object sender, RoutedEventArgs evt) {
             var input = (CheckBox)sender;
             if (SenderIsRequired(input) && input.IsChecked != true) {
-                Utils.SetInputInvalid(input);
+                ControlUtils.SetInputInvalid(input);
             } else if (InputHasChanged(input)) {
-                Utils.SetInputChanged(input);
+                ControlUtils.SetInputChanged(input);
+            } else if (InputIsNotDefault(input)) {
+                ControlUtils.SetInputNotDefault(input);
             } else {
-                Utils.ClearInputState(input);
+                ControlUtils.ClearInputState(input);
             }
             UpdateButtons();
         }
@@ -220,11 +385,13 @@ namespace Elwig.Windows {
         protected void RadioButton_Changed(object sender, RoutedEventArgs evt) {
             var input = (RadioButton)sender;
             if (SenderIsRequired(input) && input.IsChecked != true) {
-                Utils.SetInputInvalid(input);
+                ControlUtils.SetInputInvalid(input);
             } else if (InputHasChanged(input)) {
-                Utils.SetInputChanged(input);
+                ControlUtils.SetInputChanged(input);
+            } else if (InputIsNotDefault(input)) {
+                ControlUtils.SetInputNotDefault(input);
             } else {
-                Utils.ClearInputState(input);
+                ControlUtils.ClearInputState(input);
             }
             UpdateButtons();
         }
@@ -233,29 +400,127 @@ namespace Elwig.Windows {
             var input = (TextBox)sender;
             if (SenderIsRequired(input) && input.Text.Length == 0) {
                 ValidateInput(input, false);
-                Utils.SetInputInvalid(input);
+                ControlUtils.SetInputInvalid(input);
             } else {
                 ValidateInput(input, true);
                 if (InputHasChanged(input)) {
-                    Utils.SetInputChanged(input);
+                    ControlUtils.SetInputChanged(input);
+                } else if (InputIsNotDefault(input)) {
+                    ControlUtils.SetInputNotDefault(input);
                 } else {
-                    Utils.ClearInputState(input);
+                    ControlUtils.ClearInputState(input);
                 }
             }
             UpdateButtons();
         }
 
-        protected void ComboBox_SelectionChanged(object sender, RoutedEventArgs evt) {
-            var input = (ComboBox)sender;
-            if (input.ItemsSource != null && input.SelectedItem == null) {
-                Utils.SetInputInvalid(input);
-            } else if (InputHasChanged(input)) {
-                Utils.SetInputChanged(input);
+        private void UpdateComboBox(Control input) {
+            bool valid = false;
+            if (input is ComboBox cb) {
+                valid = cb.ItemsSource == null || cb.SelectedItem != null || !RequiredInputs.Contains(input);
+            } else if (input is CheckComboBox ccb) {
+                valid = ccb.ItemsSource == null || ccb.SelectedItem != null || !RequiredInputs.Contains(input);
+            }
+            if (valid) {
+                ValidateInput(input, true);
+                if (InputHasChanged(input)) {
+                    ControlUtils.SetInputChanged(input);
+                } else if (InputIsNotDefault(input)) {
+                    ControlUtils.SetInputNotDefault(input);
+                } else {
+                    ControlUtils.ClearInputState(input);
+                }
             } else {
-                Utils.ClearInputState(input);
+                ValidateInput(input, false);
+                ControlUtils.SetInputInvalid(input);
             }
             UpdateButtons();
         }
 
+        protected void ComboBox_SelectionChanged(object sender, RoutedEventArgs evt) {
+            UpdateComboBox((Control)sender);
+        }
+
+        protected void IntegerInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckInteger);
+        }
+
+        protected void PartialDateInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckPartialDate);
+        }
+
+        protected void PartialDateInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckPartialDate);
+        }
+
+        protected void DateInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckDate);
+        }
+
+        protected void DateInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckDate);
+        }
+
+        protected void PlzInput_TextChanged(object sender, RoutedEventArgs evt) {
+            var plz = (TextBox)sender;
+            InputTextChanged(plz, Validator.CheckPlz);
+            if ("PLZ".Equals(plz.Tag))
+                UpdatePlz(plz, GetPlzOrtInput(plz));
+        }
+
+        protected void PlzInput_LostFocus(object sender, RoutedEventArgs evt) {
+            var plz = (TextBox)sender;
+            InputLostFocus(plz, Validator.CheckPlz);
+            if ("PLZ".Equals(plz.Tag))
+                UpdatePlz(plz, GetPlzOrtInput(plz));
+        }
+
+        protected void EmailAddressInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckEmailAddress);
+        }
+
+        protected void EmailAddressInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckEmailAddress);
+        }
+
+        protected void PhoneNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckPhoneNumber);
+        }
+
+        protected void PhoneNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckPhoneNumber);
+        }
+
+        protected void IbanInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckIban);
+        }
+
+        protected void IbanInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckIban);
+        }
+
+        protected void BicInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckBic);
+        }
+
+        protected void BicInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckBic);
+        }
+
+        protected void UstIdNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckUstIdNr);
+        }
+
+        protected void UstIdNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckUstIdNr);
+        }
+
+        protected void LfbisNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckLfbisNr);
+        }
+
+        protected void LfbisNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckLfbisNr);
+        }
     }
 }

Elwig/Windows/AreaComAdminWindow.xaml

@@ -0,0 +1,163 @@
+<local:AdministrationWindow x:Class="Elwig.Windows.AreaComAdminWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Windows"
+        mc:Ignorable="d"
+        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
+        Title="Flächenbindugen - Elwig" Height="480" Width="850"
+        Loaded="Window_Loaded">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="IsReadOnly" Value="True"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="ComboBox">
+            <Setter Property="IsEnabled" Value="False"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="xctk:CheckComboBox">
+            <Setter Property="IsEnabled" Value="False"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="9,3"/>
+            <Setter Property="Height" Value="27"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="19"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="330"/>
+        </Grid.ColumnDefinitions>
+
+        <Menu Grid.ColumnSpan="2" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
+            <MenuItem Header="Flächenbindugen"/>
+        </Menu>
+
+        <Grid Grid.RowSpan="2" Grid.Row="1" Grid.Column="0">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="1*"/>
+                <ColumnDefinition Width="1*"/>
+                <ColumnDefinition Width="1*"/>
+            </Grid.ColumnDefinitions>
+
+            <DataGrid x:Name="AreaCommitmentList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
+                  CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False" SelectionChanged="AreaCommitmentList_SelectionChanged" Grid.Column="0" Grid.Row="1"
+                  Margin="5,10,5,42" FontSize="14" Grid.ColumnSpan="3" Background="#e2e2e2">
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="FbNr."              Binding="{Binding FbNr}"          Width="2*"/>
+                    <DataGridTextColumn Header="Katastralgemeinde"  Binding="{Binding Kg.AtKg.Name}"  Width="6*"/>
+                    <DataGridTextColumn Header="Ried"               Binding="{Binding Rd.Name}"       Width="4*"/>
+                    <DataGridTextColumn Header="Parzelle"           Binding="{Binding GstNr}"         Width="4*"/>
+                    <DataGridTextColumn Header="Fläche"             Binding="{Binding Area, StringFormat='{}{0:N0} m²'}" Width="4*">
+                        <DataGridTextColumn.CellStyle>
+                            <Style>
+                                <Setter Property="TextBlock.TextAlignment" Value="Right"/>
+                            </Style>
+                        </DataGridTextColumn.CellStyle>
+                    </DataGridTextColumn>
+                </DataGrid.Columns>
+            </DataGrid>
+
+            <Button x:Name="NewAreaCommitmentButton" Content="Neu" Click="NewAreaCommitmentButton_Click"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0"/>
+            <Button x:Name="EditAreaCommitmentButton" Content="Bearbeiten" Click="EditAreaCommitmentButton_Click" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1"/>
+            <Button x:Name="DeleteAreaCommitmentButton" Content="Löschen" Click="DeleteAreaCommitmentButton_Click" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2"/>
+
+            <Button x:Name="AreaCommitmentSaveButton" Content="Speichern" Click="AreaCommitmentSaveButton_Click" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0"/>
+            <Button x:Name="AreaCommitmentResetButton" Content="Zurücksetzen" Click="AreaCommitmentResetButton_Click" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1"/>
+            <Button x:Name="AreaCommitmentCancelButton" Content="Abbrechen" Click="AreaCommitmentCancelButton_Click" IsEnabled="False" Visibility="Hidden" IsCancel="True"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2"/>
+        </Grid>
+
+        <GroupBox Header="Vertrag" Grid.Column="2" Grid.Row="1" Grid.RowSpan="1" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="80"/>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="50"/>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="FbNr.:" Margin="10,10,0,0" Grid.Column="0"/>
+                <TextBox x:Name="FbNrInput" Margin="0,10,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
+                         TextChanged="FbNrInput_TextChanged" LostFocus="FbNrInput_LostFocus"/>
+
+                <Label Content="MgNr.:" Margin="10,40,0,0" Grid.Column="0"/>
+                <TextBox x:Name="MgNrInput" IsEnabled="False"
+                         Margin="0,40,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"/>
+
+                <Label Content="Von:" Margin="10,10,0,0" Grid.Column="2"/>
+                <TextBox x:Name="YearFromInput" Margin="0,10,0,0" Width="41" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
+                         TextChanged="IntegerInput_TextChanged"/>
+
+                <Label Content="Bis:" Margin="10,40,0,0" Grid.Column="2"/>
+                <TextBox x:Name="YearToInput" Margin="0,40,0,0" Width="41" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
+                         TextChanged="IntegerInput_TextChanged"/>
+
+                <Label Content="Vertragsart:" Margin="10,70,0,0" Grid.Column="0" Grid.ColumnSpan="2"/>
+                <ComboBox x:Name="AreaComTypeInput" DisplayMemberPath="DisplayName" TextSearch.TextPath="DisplayName"
+                          HorizontalAlignment="Stretch" Margin="0,70,10,0" Grid.Column="1" Grid.ColumnSpan="3"/>
+
+                <Label Content="Bewirt.-Art:" Margin="10,100,0,0" Grid.Column="0" Grid.ColumnSpan="2"/>
+                <ComboBox x:Name="WineCultivationInput" DisplayMemberPath="Name" TextSearch.TextPath="Name"
+                          HorizontalAlignment="Stretch" Margin="0,100,10,0" Grid.Column="1" Grid.ColumnSpan="3"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Lage" Grid.Column="2" Grid.Row="2" Grid.RowSpan="1" Margin="5,5,5,10">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="80"/>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="KG:" Margin="10,10,0,0" Grid.Column="0"/>
+                <ComboBox x:Name="KgInput" ItemTemplate="{StaticResource KgNrTemplate}" TextSearch.TextPath="Name"
+                          HorizontalAlignment="Stretch" Margin="0,10,10,0" Grid.Column="1"
+                          SelectionChanged="KgInput_SelectionChanged"/>
+
+                <Label Content="Ried:" Margin="10,40,0,0" Grid.Column="0"/>
+                <ComboBox x:Name="RdInput" DisplayMemberPath="Name" TextSearch.TextPath="Name"
+                          HorizontalAlignment="Stretch" Margin="0,40,10,0" Grid.Column="1"/>
+
+                <Label Content="Parzelle(n):" Margin="10,70,0,0" Grid.Column="0"/>
+                <TextBox x:Name="GstNrInput" Margin="0,70,10,0" Grid.Column="1" HorizontalAlignment="Stretch"
+                         TextChanged="GstNrInput_TextChanged" LostFocus="GstNrInput_LostFocus"/>
+
+                <Label Content="Fläche:" Margin="10,100,0,0" Grid.Column="0"/>
+                <TextBox x:Name="AreaInput" Margin="0,100,0,0" Width="100" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
+                         TextChanged="IntegerInput_TextChanged"/>
+            </Grid>
+        </GroupBox>
+    </Grid>
+</local:AdministrationWindow>

Elwig/Windows/AreaComAdminWindow.xaml.cs

@@ -0,0 +1,316 @@
+using Microsoft.EntityFrameworkCore;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using Elwig.Helpers;
+using Elwig.Models;
+using System;
+using System.Threading.Tasks;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using Xceed.Wpf.Toolkit.Primitives;
+
+namespace Elwig.Windows {
+    public partial class AreaComAdminWindow : AdministrationWindow {
+        private readonly Member Member;
+
+        public AreaComAdminWindow(int mgnr) {
+            InitializeComponent();
+            Member = Context.Members.Find(mgnr) ?? throw new ArgumentException("MgNr argument has invalid value");
+            Title = $"Flächenbindungen - {Member.AdministrativeName} - Elwig";
+            ExemptInputs = new Control[] {
+                MgNrInput, AreaCommitmentList, NewAreaCommitmentButton, 
+                EditAreaCommitmentButton, DeleteAreaCommitmentButton, AreaCommitmentSaveButton,
+                AreaCommitmentResetButton, AreaCommitmentCancelButton
+            };
+            RequiredInputs = new Control[] {
+                FbNrInput, YearFromInput, KgInput,
+                GstNrInput, AreaInput, AreaComTypeInput, WineCultivationInput
+            };
+        }
+
+        private void Window_Loaded(object sender, RoutedEventArgs e) {
+            LockInputs();
+        }
+
+        private async Task RefreshAreaCommitmentList() {
+            await Context.AreaCommitments.LoadAsync();
+            await RefreshAreaCommitmentListQuery();
+        }
+
+        private async Task RefreshAreaCommitmentListQuery() {
+            List<AreaCom> areaComs = await Context.AreaCommitments.Where(a => a.MgNr == Member.MgNr).OrderBy(a => a.FbNr).ToListAsync();
+
+            ControlUtils.RenewItemsSource(AreaCommitmentList, areaComs, i => (i as AreaCom)?.FbNr);
+            if (areaComs.Count == 1)
+                AreaCommitmentList.SelectedIndex = 0;
+
+            RefreshInputs();
+        }
+
+        private void RefreshInputs(bool validate = false) {
+            ClearInputStates();
+            if (AreaCommitmentList.SelectedItem is AreaCom a) {
+                EditAreaCommitmentButton.IsEnabled = true;
+                DeleteAreaCommitmentButton.IsEnabled = true;
+                FillInputs(a);
+            } else {
+                EditAreaCommitmentButton.IsEnabled = false;
+                DeleteAreaCommitmentButton.IsEnabled = false;
+                ClearOriginalValues();
+                ClearDefaultValues();
+                ClearInputs(validate);
+                ClearInputStates();
+            }
+            GC.Collect();
+        }
+
+        private void FillInputs(AreaCom a) {
+            ClearOriginalValues();
+            ClearDefaultValues();
+
+            FbNrInput.Text = a.FbNr.ToString();
+            MgNrInput.Text = a.MgNr.ToString();
+            YearFromInput.Text = a.YearFrom.ToString();
+            YearToInput.Text = a.YearTo.ToString();
+
+            KgInput.SelectedItem = a.Kg.AtKg;
+            RdInput.SelectedItem = a.Rd;
+            GstNrInput.Text = a.GstNr;
+            AreaInput.Text = a.Area.ToString();
+
+            AreaComTypeInput.SelectedItem = a.AreaComType;
+            WineCultivationInput.SelectedItem = a.WineCult;
+
+            FinishInputFilling();
+        }
+
+        private async void InitInputs() {
+            ClearOriginalValues();
+            ClearDefaultValues();
+
+            FbNrInput.Text = (await Context.NextFbNr()).ToString();
+            MgNrInput.Text = Member.MgNr.ToString();
+
+            SetDefaultValue(FbNrInput);
+            ValidateRequiredInputs();
+        }
+
+        protected override async Task RenewContext() {
+            await base.RenewContext();
+            ControlUtils.RenewItemsSource(KgInput, await Context.WbKgs.Select(k => k.AtKg).OrderBy(k => k.Name).ToListAsync(), i => (i as AT_Kg)?.KgNr);
+            ControlUtils.RenewItemsSource(AreaComTypeInput, await Context.AreaCommitmentTypes.OrderBy(v => v.VtrgId).ToListAsync(), i => (i as AreaComType)?.VtrgId);
+            ControlUtils.RenewItemsSource(WineCultivationInput, await Context.WineCultivations.OrderBy(c => c.Name).ToListAsync(), i => (i as WineCult)?.CultId);
+            await RefreshAreaCommitmentList();
+        }
+
+        private void NewAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
+            IsCreating = true;
+            AreaCommitmentList.IsEnabled = false;
+            AreaCommitmentList.SelectedItem = null;
+            HideAreaCommitmentNewEditDeleteButtons();
+            ShowAreaCommitmentSaveResetCancelButtons();
+            UnlockInputs();
+            InitInputs();
+        }
+
+        private void EditAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
+            if (AreaCommitmentList.SelectedItem == null)
+                return;
+
+            IsEditing = true;
+            AreaCommitmentList.IsEnabled = false;
+
+            HideAreaCommitmentNewEditDeleteButtons();
+            ShowAreaCommitmentSaveResetCancelButtons();
+            UnlockInputs();
+        }
+
+        private async void DeleteAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
+            AreaCom a = (AreaCom)AreaCommitmentList.SelectedItem;
+            if (a == null) return;
+
+            var r = MessageBox.Show(
+                $"Soll die Flächenbindung {a.GstNr} ({a.Area} m²) wirklich unwiderruflich gelöscht werden?",
+                "Flächenbindung löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
+            if (r == MessageBoxResult.Yes) {
+                Context.Remove(a);
+                Context.SaveChanges();
+                await RefreshAreaCommitmentList();
+            }
+        }
+
+        private async Task<AreaCom> UpdateAreaCom(AreaCom a) {
+            int newFbNr = int.Parse(FbNrInput.Text);
+            a.MgNr = int.Parse(MgNrInput.Text);
+            a.YearFrom = int.Parse(YearFromInput.Text);
+            a.YearTo = (YearToInput.Text == "") ? null : int.Parse(YearToInput.Text);
+            a.KgNr = ((AT_Kg)KgInput.SelectedItem).KgNr;
+            a.RdNr = RdInput.SelectedItem.GetType() == typeof(NullItem) ? null : ((WbRd)RdInput.SelectedItem).RdNr;
+            a.GstNr = GstNrInput.Text;
+            a.Area = int.Parse(AreaInput.Text);
+            a.VtrgId = (AreaComTypeInput.SelectedItem as AreaComType)?.VtrgId;
+            a.CultId = (WineCultivationInput.SelectedItem as WineCult)?.CultId;
+
+            EntityEntry<AreaCom>? tr = null;
+            try {
+                if (IsEditing) {
+                    tr = Context.Update(a);
+                } else if (IsCreating) {
+                    a.FbNr = newFbNr;
+                    tr = (await Context.AddAsync(a));
+                } else {
+                    throw new Exception();
+                }
+
+                await Context.SaveChangesAsync();
+
+                if (newFbNr != a.FbNr) {
+                    await Context.Database.ExecuteSqlAsync($"UPDATE area_commitment SET fbnr = {newFbNr} WHERE fbnr = {a.FbNr}");
+                    tr.State = EntityState.Detached;
+                    await Context.SaveChangesAsync();
+                    await tr.ReloadAsync();
+                    a = await Context.AreaCommitments.FindAsync(newFbNr);
+                }
+
+            } catch (Exception exc) {
+                if (tr != null) {
+                    tr.State = EntityState.Detached;
+                    await tr.ReloadAsync();
+                }
+                var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
+                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
+                MessageBox.Show(str, "Flächenbindung aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+
+            return a;
+        }
+
+        private async void AreaCommitmentSaveButton_Click(object sender, RoutedEventArgs evt) {
+            AreaCom a = await UpdateAreaCom(IsEditing ? (AreaCom)AreaCommitmentList.SelectedItem : Context.CreateProxy<AreaCom>());
+            IsEditing = false;
+            IsCreating = false;
+            AreaCommitmentList.IsEnabled = true;
+            HideAreaCommitmentSaveResetCancelButtons();
+            ShowAreaCommitmentNewEditDeleteButtons();
+            LockInputs();
+            await RefreshAreaCommitmentList();
+            AreaCommitmentList.SelectedItem = a;
+        }
+
+        private void AreaCommitmentResetButton_Click(object sender, RoutedEventArgs evt) {
+            if (IsEditing) {
+                RefreshInputs();
+            } else if (IsCreating) {
+                InitInputs();
+            }
+            UpdateButtons();
+        }
+
+        private void AreaCommitmentCancelButton_Click(object sender, RoutedEventArgs evt) {
+            IsEditing = false;
+            IsCreating = false;
+            AreaCommitmentList.IsEnabled = true;
+            HideAreaCommitmentSaveResetCancelButtons();
+            ShowAreaCommitmentNewEditDeleteButtons();
+            RefreshInputs();
+            ClearInputStates();
+            LockInputs();
+        }
+
+        override protected void UpdateButtons() {
+            if (!IsEditing && !IsCreating) return;
+            bool ch = HasChanged, v = IsValid;
+            AreaCommitmentResetButton.IsEnabled = (ch);
+            AreaCommitmentSaveButton.IsEnabled = (ch && v);
+        }
+
+        private void DisableAreaCommitmentNewEditDeleteButtons() {
+            NewAreaCommitmentButton.IsEnabled = false;
+            EditAreaCommitmentButton.IsEnabled = false;
+            DeleteAreaCommitmentButton.IsEnabled = false;
+        }
+
+        private void EnableAreaCommitmentNewEditDeleteButtons() {
+            NewAreaCommitmentButton.IsEnabled = true;
+            EditAreaCommitmentButton.IsEnabled = AreaCommitmentList.SelectedItem != null;
+            DeleteAreaCommitmentButton.IsEnabled = AreaCommitmentList.SelectedItem != null;
+        }
+
+        private void ShowAreaCommitmentSaveResetCancelButtons() {
+            AreaCommitmentSaveButton.IsEnabled = false;
+            AreaCommitmentResetButton.IsEnabled = false;
+            AreaCommitmentCancelButton.IsEnabled = true;
+            AreaCommitmentSaveButton.Visibility = Visibility.Visible;
+            AreaCommitmentResetButton.Visibility = Visibility.Visible;
+            AreaCommitmentCancelButton.Visibility = Visibility.Visible;
+        }
+
+        private void HideAreaCommitmentSaveResetCancelButtons() {
+            AreaCommitmentSaveButton.IsEnabled = false;
+            AreaCommitmentResetButton.IsEnabled = false;
+            AreaCommitmentCancelButton.IsEnabled = false;
+            AreaCommitmentSaveButton.Visibility = Visibility.Hidden;
+            AreaCommitmentResetButton.Visibility = Visibility.Hidden;
+            AreaCommitmentCancelButton.Visibility = Visibility.Hidden;
+        }
+
+        private void ShowAreaCommitmentNewEditDeleteButtons() {
+            EnableAreaCommitmentNewEditDeleteButtons();
+            NewAreaCommitmentButton.Visibility = Visibility.Visible;
+            EditAreaCommitmentButton.Visibility = Visibility.Visible;
+            DeleteAreaCommitmentButton.Visibility = Visibility.Visible;
+        }
+
+        private void HideAreaCommitmentNewEditDeleteButtons() {
+            DisableAreaCommitmentNewEditDeleteButtons();
+            NewAreaCommitmentButton.Visibility = Visibility.Hidden;
+            EditAreaCommitmentButton.Visibility = Visibility.Hidden;
+            DeleteAreaCommitmentButton.Visibility = Visibility.Hidden;
+        }
+
+        private void AreaCommitmentList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            RefreshInputs();
+        }
+
+        private void AttributesInput_SelectionChanged(object sender, ItemSelectionChangedEventArgs evt) {
+
+        }
+
+        private async void KgInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            if (KgInput.SelectedItem is AT_Kg curr_kg) {
+                var rdList = await Context.WbRde.Where(r => r.KgNr == curr_kg.KgNr).OrderBy(r => r.Name).Cast<object>().ToListAsync();
+                rdList.Insert(0, new NullItem());
+                ControlUtils.RenewItemsSource(RdInput, rdList, i => (i as WbRd)?.RdNr);
+            } else {
+                var rdList = new object[] { new NullItem() };
+                ControlUtils.RenewItemsSource(RdInput, rdList, i => (i as WbRd)?.RdNr);
+            }
+            ComboBox_SelectionChanged(sender, evt);
+        }
+
+        protected void InputTextChanged(TextBox input, Func<TextBox, bool, AppDbContext, AreaCom?, ValidationResult> checker) {
+            InputTextChanged(input, checker(input, SenderIsRequired(input), Context, (AreaCom)AreaCommitmentList.SelectedItem));
+        }
+
+        protected void InputLostFocus(TextBox input, Func<TextBox, bool, AppDbContext, AreaCom?, ValidationResult> checker, string? msg = null) {
+            InputLostFocus(input, checker(input, SenderIsRequired(input), Context, (AreaCom)AreaCommitmentList.SelectedItem), msg);
+        }
+
+        private void FbNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckFbNr);
+        }
+
+        private void FbNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckFbNr);
+        }
+        
+        private void GstNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckGstNr);
+        }
+
+        private void GstNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckGstNr);
+        }
+    }
+}

Elwig/Windows/AreaCommAdminWindow.xaml

@@ -1,192 +0,0 @@
-<local:AdministrationWindow x:Class="Elwig.Windows.AreaCommAdminWindow"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:Elwig.Windows"
-        mc:Ignorable="d"
-        Title="Flächenbindugen - Elwig" Height="500" Width="950"
-        Loaded="Window_Loaded">
-    <Window.Resources>
-        <Style TargetType="Label">
-            <Setter Property="HorizontalAlignment" Value="Left"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="Padding" Value="2,4,2,4"/>
-            <Setter Property="Height" Value="25"/>
-        </Style>
-        <Style TargetType="TextBox">
-            <Setter Property="HorizontalAlignment" Value="Stretch"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="FontSize" Value="14"/>
-            <Setter Property="Padding" Value="2"/>
-            <Setter Property="IsReadOnly" Value="True"/>
-            <Setter Property="Height" Value="25"/>
-            <Setter Property="TextWrapping" Value="NoWrap"/>
-        </Style>
-        <Style TargetType="ComboBox">
-            <Setter Property="IsEnabled" Value="False"/>
-            <Setter Property="Height" Value="25"/>
-            <Setter Property="FontSize" Value="14"/>
-            <Setter Property="HorizontalAlignment" Value="Stretch"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-        </Style>
-        <Style TargetType="Button">
-            <Setter Property="FontSize" Value="14"/>
-            <Setter Property="Padding" Value="9,3"/>
-            <Setter Property="Height" Value="27"/>
-        </Style>
-    </Window.Resources>
-    <Grid>
-        <Grid.RowDefinitions>
-            <RowDefinition Height="19"/>
-            <RowDefinition Height="120"/>
-            <RowDefinition Height="190"/>
-            <RowDefinition Height="1*"/>
-        </Grid.RowDefinitions>
-        <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="620"/>
-            <ColumnDefinition Width="1*"/>
-        </Grid.ColumnDefinitions>
-
-        <Menu Grid.ColumnSpan="3" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
-            <MenuItem Header="Flächenbindugen"/>
-        </Menu>
-
-        <Grid Grid.RowSpan="4" Grid.Row="1">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="120"/>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="125"/>
-            </Grid.ColumnDefinitions>
-
-            <DataGrid x:Name="ContractList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
-                  CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False" SelectionChanged="ContractList_SelectionChanged" Grid.Column="0" Grid.Row="1"
-                  Margin="10,10,5,47" FontSize="14" Grid.ColumnSpan="2" Background="#e2e2e2">
-                <DataGrid.Columns>
-                    <DataGridTextColumn Header="VNr."  Binding="{Binding VNr}"       Width="*"/>
-                    <DataGridTextColumn Header="Von"   Binding="{Binding YearFrom}"  Width="*"/>
-                    <DataGridTextColumn Header="Bis"   Binding="{Binding YearTo}"    Width="*"/>
-                </DataGrid.Columns>
-            </DataGrid>
-
-
-            <Button x:Name="NewContractButton" Content="Neu" Click="NewContractButton_Click"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="10,10,0,10" Width="110" Grid.Column="0"/>
-            <Button x:Name="DeleteContractButton" Content="Löschen" Click="DeleteContractButton_Click" IsEnabled="False"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="5,10,0,10" Width="110" Grid.Column="1"/>
-
-            <Button x:Name="ContractSaveButton" Content="Speichern" Click="ContractSaveButton_Click" IsEnabled="False" Visibility="Hidden"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="10,10,0,10" Width="110" Grid.Column="0"/>
-            <Button x:Name="ContractCancelButton" Content="Abbrechen" Click="ContractCancelButton_Click" IsEnabled="False" Visibility="Hidden" IsCancel="True"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="5,10,0,10" Width="110" Grid.Column="1"/>
-
-
-
-            <Button x:Name="NewAreaCommitmentButton" Content="Neu" Click="NewAreaCommitmentButton_Click" IsEnabled="False"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="5,10,0,10" Width="110" Grid.Column="2"/>
-            <Button x:Name="EditAreaCommitmentButton" Content="Bearbeiten" Click="EditAreaCommitmentButton_Click" IsEnabled="False"
-                    HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="-5,10,0,10" Width="110" Grid.Column="3"/>
-            <Button x:Name="DeleteAreaCommitmentButton" Content="Löschen" Click="DeleteAreaCommitmentButton_Click" IsEnabled="False"
-                    HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="0,10,10,10" Width="110" Grid.Column="4"/>
-
-            <Button x:Name="AreaCommitmentSaveButton" Content="Speichern" Click="AreaCommitmentSaveButton_Click" IsEnabled="False" Visibility="Hidden"
-                    HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="10,10,0,10" Width="110" Grid.Column="2"/>
-            <Button x:Name="AreaCommitmentResetButton" Content="Zurücksetzen" Click="AreaCommitmentResetButton_Click" IsEnabled="False" Visibility="Hidden"
-                    HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="-5,10,0,10" Width="110" Grid.Column="3"/>
-            <Button x:Name="AreaCommitmentCancelButton" Content="Abbrechen" Click="AreaCommitmentCancelButton_Click" IsEnabled="False" Visibility="Hidden" IsCancel="True"
-                    HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="0,10,10,10" Width="110" Grid.Column="4"/>
-
-            <DataGrid x:Name="AreaCommitmentList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
-                  CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False" SelectionChanged="AreaCommitmentList_SelectionChanged" Grid.Column="2" Grid.Row="1"
-                  Margin="5,10,10,47" FontSize="14" Grid.ColumnSpan="3" Background="#e2e2e2">
-                <DataGrid.Columns>
-                    <DataGridTextColumn Header="Katastralgemeinde"  Binding="{Binding Kg.Kg.Name}"  Width="5*"/>
-                    <DataGridTextColumn Header="Ried"               Binding="{Binding Rd.Name}"     Width="4*"/>
-                    <DataGridTextColumn Header="Parzelle"           Binding="{Binding GstNr}"       Width="4*"/>
-                </DataGrid.Columns>
-            </DataGrid>
-
-        </Grid>
-
-        <GroupBox Header="Vertrag" Grid.Column="1" Grid.Row="1" Grid.RowSpan="1" Margin="5,5,5,5">
-            <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="60"/>
-                    <ColumnDefinition Width="70"/>
-                    <ColumnDefinition Width="50"/>
-                    <ColumnDefinition Width="100"/>
-                </Grid.ColumnDefinitions>
-
-                <Label Content="VNr.:" Margin="10,10,0,0" Grid.Column="0"/>
-                <TextBox x:Name="VNrInput" Margin="0,10,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="VNrInput_TextChanged" LostFocus="VNrInput_LostFocus"/>
-                
-                <Label Content="MgNr.:" Margin="10,40,0,0" Grid.Column="0"/>
-                <TextBox x:Name="MgNrInput" Margin="0,40,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"/>
-                
-                <Label Content="Von:" Margin="10,10,0,0" Grid.Column="2"/>
-                <TextBox x:Name="YearFromInput" Margin="0,10,0,0" Width="100" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="YearFromInput_TextChanged"/>
-                
-                <Label Content="Bis:" Margin="10,40,0,0" Grid.Column="2"/>
-                <TextBox x:Name="YearToInput" Margin="0,40,0,0" Width="100" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="YearToInput_TextChanged"/>
-            </Grid>
-        </GroupBox>
-        
-        <GroupBox Header="Lage" Grid.Column="1" Grid.Row="2" Grid.RowSpan="1" Margin="5,5,5,5">
-            <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="80"/>
-                    <ColumnDefinition Width="*"/>
-                </Grid.ColumnDefinitions>
-
-                <Label Content="Gemeinde:" Margin="10,10,0,0" Grid.Column="0"/>
-                <ComboBox x:Name="KgInput" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="KgInput_SelectionChanged"
-                          Margin="0,10,10,0" Grid.Column="1"/>
-                
-                <Label Content="Ried:" Margin="10,40,0,0" Grid.Column="0"/>
-                <ComboBox x:Name="RdInput" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="ComboBox_SelectionChanged"
-                          Margin="0,40,0,0" Grid.Column="1"/>
-                
-                <Label Content="Parzelle:" Margin="10,70,0,0" Grid.Column="0"/>
-                <TextBox x:Name="GstNrInput" Margin="0,70,0,0" Width="100" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="GstNrInput_TextChanged" LostFocus="GstNrInput_LostFocus"/>
-
-                <Label Content="Fläche (m²):" Margin="10,100,0,0" Grid.Column="0"/>
-                <TextBox x:Name="AreaInput" Margin="0,100,0,0" Width="100" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="AreaInput_TextChanged"/>
-            </Grid>
-
-        </GroupBox>
-
-        <GroupBox Header="Eigenschaften" Grid.Column="1" Grid.Row="3" Grid.RowSpan="1" Margin="5,5,5,5">
-            <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="80"/>
-                    <ColumnDefinition Width="*"/>
-                </Grid.ColumnDefinitions>
-
-                <Label Content="Sorte:" Margin="10,10,0,0" Grid.Column="0"/>
-                <ComboBox x:Name="SortInput" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="ComboBox_SelectionChanged"
-                          Margin="0,10,10,0" Grid.Column="1"/>
-
-                <Label Content="Attribut:" Margin="10,40,0,0" Grid.Column="0"/>
-                <ComboBox x:Name="AttrInput" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="ComboBox_SelectionChanged"
-                          Margin="0,40,10,0" Grid.Column="1"/>
-
-                <Label Content="Bewirt. Art:" Margin="10,70,0,0" Grid.Column="0"/>
-                <ComboBox x:Name="CultInput" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="ComboBox_SelectionChanged"
-                          Margin="0,70,10,0" Grid.Column="1"/>
-
-            </Grid>
-        </GroupBox>
-    </Grid>
-</local:AdministrationWindow>

Elwig/Windows/AreaCommAdminWindow.xaml.cs

@@ -1,481 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.Collections.Generic;
-using System.Linq;
-using System.Windows;
-using System.Windows.Controls;
-using Elwig.Helpers;
-using Elwig.Models;
-using System.Runtime.CompilerServices;
-using System;
-using System.Threading.Tasks;
-using Microsoft.EntityFrameworkCore.ChangeTracking;
-
-namespace Elwig.Windows {
-    public partial class AreaCommAdminWindow : AdministrationWindow {
-        private readonly Member member;
-        private bool IsEditing = false;
-        private bool IsCreating = false;
-
-        public AreaCommAdminWindow(Member member) {
-            InitializeComponent();
-            this.member = member;
-            Title = $"Flächenbindungen - {member.FamilyName} {member.GivenName} - Elwig";
-            ExemptInputs = new Control[] {
-                MgNrInput, ContractList, AreaCommitmentList, NewContractButton, DeleteContractButton,
-                ContractSaveButton, ContractCancelButton, NewAreaCommitmentButton, 
-                EditAreaCommitmentButton, DeleteAreaCommitmentButton, AreaCommitmentSaveButton,
-                AreaCommitmentResetButton, AreaCommitmentCancelButton
-            };
-            RequiredInputs = new Control[] {
-                VNrInput, YearFromInput, KgInput,
-                GstNrInput, AreaInput, SortInput, CultInput
-            };
-        }
-
-        private async void Window_Loaded(object sender, RoutedEventArgs e) {
-            await RefreshContractList();
-            KgInput.ItemsSource = Context.WbKgs.Select(k => k.Kg).OrderBy(k => k.Name).ToList();
-            SortInput.ItemsSource = Context.WineVarieties.OrderBy(s => s.Name).ToList();
-            AttrInput.ItemsSource = Context.WineAttributes.OrderBy(a => a.Name).ToList();
-            CultInput.ItemsSource = Context.WineCultivations.OrderBy(c => c.Name).ToList();
-        }
-
-        private async Task RefreshContractList() {
-            await Context.Contracts.LoadAsync();
-            await RefreshContractListQuery();
-        }
-
-        private async Task RefreshAreaCommitmentList() {
-            await Context.AreaCommitments.LoadAsync();
-            await RefreshAreaCommitmentListQuery();
-        }
-
-        private async Task RefreshContractListQuery() {
-            List<Contract> contracts = await Context.Contracts.Where(c => c.MgNr == member.MgNr).ToListAsync();
-
-            ContractList.ItemsSource = contracts;
-            if (contracts.Count == 1)
-                ContractList.SelectedIndex = 0;
-
-            //TODO notwendig?
-            await RefreshAreaCommitmentList();
-            RefreshInputs();
-        }
-
-        private async Task RefreshAreaCommitmentListQuery() {
-            Contract? contract = (Contract)ContractList.SelectedItem;
-            
-            if (contract == null) {
-                AreaCommitmentList.ItemsSource = null;
-                return;
-            }
-
-            List<AreaCommitment> commitments = await Context.AreaCommitments.Where(a => a.VNr == contract.VNr).ToListAsync();
-
-            AreaCommitmentList.ItemsSource = commitments;
-            if (commitments.Count == 1)
-                AreaCommitmentList.SelectedIndex = 0;
-            RefreshInputs();
-        }
-
-        private void RefreshInputs(bool validate = false) {
-            ClearInputStates();
-            Contract? c = (Contract)ContractList.SelectedItem;
-            AreaCommitment? a = (AreaCommitment)AreaCommitmentList.SelectedItem;
-
-            if (c != null) {
-                DeleteContractButton.IsEnabled = true;
-                NewAreaCommitmentButton.IsEnabled = true;
-            } else {
-                DeleteContractButton.IsEnabled = false;
-                NewAreaCommitmentButton.IsEnabled = false;
-            }
-
-            if (a != null) {
-                EditAreaCommitmentButton.IsEnabled = true;
-                DeleteAreaCommitmentButton.IsEnabled = true;
-                FillInputs(a);
-            } else {
-                EditAreaCommitmentButton.IsEnabled = false;
-                DeleteAreaCommitmentButton.IsEnabled = false;
-                ClearInputs();
-                MgNrInput.Text = "";
-            }
-            if (!validate) ClearInputStates();
-            GC.Collect();
-        }
-
-        private void FillInputs(AreaCommitment a) {
-            ClearOriginalValues();
-
-            VNrInput.Text = a.VNr.ToString();
-            MgNrInput.Text = a.Contract.MgNr.ToString();
-            YearFromInput.Text = a.Contract.YearFrom.ToString();
-            YearToInput.Text = a.Contract.YearTo.ToString();
-
-            KgInput.SelectedItem = a.Kg.Kg;
-            RdInput.SelectedItem = a.Rd;
-            GstNrInput.Text = a.GstNr;
-            AreaInput.Text = a.Area.ToString();
-
-            SortInput.SelectedItem = a.WineVar;
-            AttrInput.SelectedItem = a.WineAttr;
-            CultInput.SelectedItem = a.WineCult;
-
-            FillOriginalValues();
-        }
-
-        private void NewAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
-            IsCreating = true;
-            AreaCommitmentList.IsEnabled = false;
-            AreaCommitmentList.SelectedItem = null;
-            ContractList.IsEnabled = false;
-            HideAreaCommitmentNewEditDeleteButtons();
-            ShowAreaCommitmentSaveResetCancelButtons();
-            DisableContractNewDeleteButtons();
-            UnlockInputs();
-            VNrInput.IsReadOnly = true;
-            YearFromInput.IsReadOnly = true;
-            YearToInput.IsReadOnly = true;
-            InitInputs();
-        }
-
-        private void EditAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
-            if (AreaCommitmentList.SelectedItem == null)
-                return;
-
-            IsEditing = true;
-            AreaCommitmentList.IsEnabled = false;
-            ContractList.IsEnabled = false;
-
-            HideAreaCommitmentNewEditDeleteButtons();
-            ShowAreaCommitmentSaveResetCancelButtons();
-            DisableContractNewDeleteButtons();
-            UnlockInputs();
-        }
-
-        private async void DeleteAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
-            AreaCommitment a = (AreaCommitment)AreaCommitmentList.SelectedItem;
-            if (a == null) return;
-
-            var r = MessageBox.Show(
-                $"Soll die Flächenbindung {a.Kg.Kg.Name}{(a.Rd.Name == null ? "" : $", {a.Rd.Name}")}, {a.GstNr} wirklich unwiderruflich gelöscht werden?",
-                "Flächenbindung löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
-            if (r == MessageBoxResult.Yes) {
-                Context.Remove(a);
-                Context.SaveChanges();
-                await RefreshAreaCommitmentList();
-            }
-        }
-
-        private void NewContractButton_Click(object sender, RoutedEventArgs evt) {
-            IsCreating = true;
-            ContractList.IsEnabled = false;
-            ContractList.SelectedItem = null;
-            AreaCommitmentList.IsEnabled = false;
-            AreaCommitmentList.SelectedItem = null;
-            HideContractNewDeleteButtons();
-            ShowContractSaveCancelButtons();
-            DisableAreaCommitmentNewEditDeleteButtons();
-            UnlockInputs();
-            InitInputs();
-        }
-
-        private async void DeleteContractButton_Click(object sender, RoutedEventArgs evt) {
-            Contract c = (Contract)ContractList.SelectedItem;
-            if (c == null) return;
-
-            var r = MessageBox.Show(
-                $"Soll der Vertrag \"{c.VNr} und alle enthaltenen Flächenbindungen wirklich unwiderruflich gelöscht werden?",
-                "Vertrag löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
-            if (r == MessageBoxResult.Yes) {
-                Context.Remove(c);
-                Context.SaveChanges();
-                await RefreshContractList();
-            }
-        }
-
-        private async Task<Contract> UpdateContract(Contract c) {
-            int newVNr = int.Parse(VNrInput.Text);
-            c.MgNr = int.Parse(MgNrInput.Text);
-            c.YearFrom = int.Parse(YearFromInput.Text);
-            c.YearTo = (YearToInput.Text == "") ? null : int.Parse(YearToInput.Text);
-
-            EntityEntry<Contract>? tr = null;
-            try {
-                if (IsEditing) {
-                    tr = Context.Update(c);
-                } else if (IsCreating) {
-                    c.VNr = newVNr;
-                    tr = (await Context.AddAsync(c));
-                }
-                await Context.SaveChangesAsync();
-
-                if (newVNr != c.VNr) {
-                    await Context.Database.ExecuteSqlAsync($"UPDATE contract SET vnr = {newVNr} WHERE mgnr = {c.VNr}");
-                    await Context.Contracts.LoadAsync();
-                    c = await Context.Contracts.FindAsync(newVNr);
-                }
-            } catch (Exception exc) {
-                if (tr != null) await tr.ReloadAsync();
-                var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
-                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
-                MessageBox.Show(str, "Vertrag aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
-            }
-
-            return c;
-        }
-
-        private async Task<AreaCommitment> UpdateaAreaCommitment(AreaCommitment a) {
-            a.VNr = int.Parse(VNrInput.Text);
-            a.KgNr = ((AT_Kg)KgInput.SelectedItem).KgNr;
-            a.RdNr = ((WbRd)RdInput.SelectedItem).RdNr;
-            a.GstNr = GstNrInput.Text;
-            a.Area = int.Parse(AreaInput.Text);
-            a.SortId = ((WineVar)SortInput.SelectedItem).SortId;
-            a.AttrId = ((WineAttr)AttrInput.SelectedItem).AttrId;
-            a.CultId = ((WineCult)CultInput.SelectedItem).CultId;
-
-            EntityEntry<AreaCommitment>? tr = null;
-            try {
-                if (IsEditing) {
-                    tr = Context.Update(a);
-                } else if (IsCreating) {
-                    tr = (await Context.AddAsync(a));
-                }
-                await Context.SaveChangesAsync();
-
-            } catch (Exception exc) {
-                if (tr != null) await tr.ReloadAsync();
-                var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
-                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
-                MessageBox.Show(str, "Flächenbindung aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
-            }
-
-            return a;
-        }
-
-        private async void AreaCommitmentSaveButton_Click(object sender, RoutedEventArgs evt) {
-            Contract c = await UpdateContract((Contract)ContractList.SelectedItem);
-            AreaCommitment a = await UpdateaAreaCommitment(IsEditing ? (AreaCommitment)AreaCommitmentList.SelectedItem : Context.CreateProxy<AreaCommitment>());
-
-            IsEditing = false;
-            IsCreating = false;
-            AreaCommitmentList.IsEnabled = true;
-            ContractList.IsEnabled = true;
-            HideAreaCommitmentSaveResetCancelButtons();
-            ShowAreaCommitmentNewEditDeleteButtons();
-            EnableContractNewDeleteButtons();
-            LockInputs();
-            await RefreshContractList();
-            await RefreshAreaCommitmentList();
-            ContractList.SelectedItem = c;
-            AreaCommitmentList.SelectedItem = a;
-        }
-
-        private void AreaCommitmentResetButton_Click(object sender, RoutedEventArgs evt) {
-            if (IsEditing) {
-                RefreshInputs();
-            } else if (IsCreating) {
-                InitInputs();
-            }
-            UpdateButtons();
-        }
-
-        private void AreaCommitmentCancelButton_Click(object sender, RoutedEventArgs evt) {
-            IsEditing = false;
-            IsCreating = false;
-            AreaCommitmentList.IsEnabled = true;
-            ContractList.IsEnabled = true;
-            HideAreaCommitmentSaveResetCancelButtons();
-            ShowAreaCommitmentNewEditDeleteButtons();
-            EnableContractNewDeleteButtons();
-            RefreshInputs();
-            ClearInputStates();
-            LockInputs();
-        }
-
-        private async void ContractSaveButton_Click(object sender, RoutedEventArgs evt) {
-            Contract c = await UpdateContract(Context.CreateProxy<Contract>());
-            AreaCommitment a = await UpdateaAreaCommitment(Context.CreateProxy<AreaCommitment>());
-
-            IsEditing = false;
-            IsCreating = false;
-            AreaCommitmentList.IsEnabled = true;
-            ContractList.IsEnabled = true;
-            HideContractSaveCancelButtons();
-            ShowContractNewDeleteButtons();
-            EnableAreaCommitmentNewEditDeleteButtons();
-            LockInputs();
-            await RefreshContractList();
-            await RefreshAreaCommitmentList();
-            ContractList.SelectedItem = c;
-            AreaCommitmentList.SelectedItem = a;
-        }
-
-        private void ContractCancelButton_Click(object sender, RoutedEventArgs evt) {
-            IsEditing = false;
-            IsCreating = false;
-            ContractList.IsEnabled = true;
-            AreaCommitmentList.IsEnabled = true;
-            HideContractSaveCancelButtons();
-            ShowContractNewDeleteButtons();
-            EnableAreaCommitmentNewEditDeleteButtons();
-            RefreshInputs();
-            ClearInputStates();
-            LockInputs();
-        }
-
-        override protected void UpdateButtons() {
-            if (!IsEditing && !IsCreating) return;
-            bool ch = HasChanged(), v = IsValid();
-            ContractSaveButton.IsEnabled = (v && ch);
-            AreaCommitmentResetButton.IsEnabled = (ch);
-            AreaCommitmentSaveButton.IsEnabled = (v && ch);
-        }
-
-        private async void InitInputs() {
-            VNrInput.Text = ContractList.SelectedItem == null ? (await Utils.NextVNr(Context)).ToString() : ((Contract)ContractList.SelectedItem).VNr.ToString();
-            MgNrInput.Text = member.MgNr.ToString();
-            FillOriginalValues();
-            ValidateRequiredInputs();
-        }
-
-        private void EnableContractNewDeleteButtons() {
-            NewContractButton.IsEnabled = true;
-            DeleteContractButton.IsEnabled = ContractList.SelectedItem != null;
-        }
-
-        private void DisableContractNewDeleteButtons() {
-            NewContractButton.IsEnabled = false;
-            DeleteContractButton.IsEnabled = false;
-        }
-
-        private void DisableAreaCommitmentNewEditDeleteButtons() {
-            NewAreaCommitmentButton.IsEnabled = false;
-            EditAreaCommitmentButton.IsEnabled = false;
-            DeleteAreaCommitmentButton.IsEnabled = false;
-        }
-
-        private void EnableAreaCommitmentNewEditDeleteButtons() {
-            NewAreaCommitmentButton.IsEnabled = ContractList.SelectedItem != null;
-            EditAreaCommitmentButton.IsEnabled = AreaCommitmentList.SelectedItem != null;
-            DeleteAreaCommitmentButton.IsEnabled = AreaCommitmentList.SelectedItem != null;
-        }
-
-        private void ShowContractSaveCancelButtons() {
-            ContractSaveButton.IsEnabled = false;
-            ContractCancelButton.IsEnabled = true;
-            ContractSaveButton.Visibility = Visibility.Visible;
-            ContractCancelButton.Visibility = Visibility.Visible;
-        }
-
-        private void HideContractSaveCancelButtons() {
-            ContractSaveButton.IsEnabled = false;
-            ContractCancelButton.IsEnabled = false;
-            ContractSaveButton.Visibility = Visibility.Hidden;
-            ContractCancelButton.Visibility = Visibility.Hidden;
-        }
-
-        private void ShowContractNewDeleteButtons() {
-            EnableContractNewDeleteButtons();
-            NewContractButton.Visibility = Visibility.Visible;
-            DeleteContractButton.Visibility = Visibility.Visible;
-        }
-
-        private void HideContractNewDeleteButtons() {
-            DisableContractNewDeleteButtons();
-            NewContractButton.Visibility = Visibility.Hidden;
-            DeleteContractButton.Visibility = Visibility.Hidden;
-        }
-
-        private void ShowAreaCommitmentSaveResetCancelButtons() {
-            AreaCommitmentSaveButton.IsEnabled = false;
-            AreaCommitmentResetButton.IsEnabled = false;
-            AreaCommitmentCancelButton.IsEnabled = true;
-            AreaCommitmentSaveButton.Visibility = Visibility.Visible;
-            AreaCommitmentResetButton.Visibility = Visibility.Visible;
-            AreaCommitmentCancelButton.Visibility = Visibility.Visible;
-        }
-
-        private void HideAreaCommitmentSaveResetCancelButtons() {
-            AreaCommitmentSaveButton.IsEnabled = false;
-            AreaCommitmentResetButton.IsEnabled = false;
-            AreaCommitmentCancelButton.IsEnabled = false;
-            AreaCommitmentSaveButton.Visibility = Visibility.Hidden;
-            AreaCommitmentResetButton.Visibility = Visibility.Hidden;
-            AreaCommitmentCancelButton.Visibility = Visibility.Hidden;
-        }
-
-        private void ShowAreaCommitmentNewEditDeleteButtons() {
-            EnableAreaCommitmentNewEditDeleteButtons();
-            NewAreaCommitmentButton.Visibility = Visibility.Visible;
-            EditAreaCommitmentButton.Visibility = Visibility.Visible;
-            DeleteAreaCommitmentButton.Visibility = Visibility.Visible;
-        }
-
-        private void HideAreaCommitmentNewEditDeleteButtons() {
-            DisableAreaCommitmentNewEditDeleteButtons();
-            NewAreaCommitmentButton.Visibility = Visibility.Hidden;
-            EditAreaCommitmentButton.Visibility = Visibility.Hidden;
-            DeleteAreaCommitmentButton.Visibility = Visibility.Hidden;
-        }
-
-        private async void ContractList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
-            //await RefreshContractListQuery();
-            await RefreshAreaCommitmentList();
-        }
-
-        private void AreaCommitmentList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
-            RefreshInputs();
-        }
-
-        private void KgInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
-            AT_Kg? curr_kg = (AT_Kg)KgInput.SelectedItem;
-            if (curr_kg != null) {
-                RdInput.ItemsSource = Context.WbRde.Where(r => r.KgNr == curr_kg.KgNr).OrderBy(r => r.Name).ToList();
-            }
-            ComboBox_SelectionChanged(sender, evt);
-        }
-
-        protected void InputTextChanged(TextBox input, Func<TextBox, bool, AppDbContext, Contract?, ValidationResult> checker) {
-            InputTextChanged(input, checker(input, SenderIsRequired(input), Context, (Contract)ContractList.SelectedItem));
-        }
-
-        protected void InputLostFocus(TextBox input, Func<TextBox, bool, AppDbContext, Contract?, ValidationResult> checker, string? msg = null) {
-            InputLostFocus(input, checker(input, SenderIsRequired(input), Context, (Contract)ContractList.SelectedItem), msg);
-        }
-
-        private void NumericInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckNumeric);
-        }
-
-        private void VNrInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckVNr);
-        }
-
-        private void VNrInput_LostFocus(object sender, RoutedEventArgs evt) {
-            InputLostFocus((TextBox)sender, Validator.CheckVNr);
-        }
-
-        private void YearFromInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckNumeric);
-        }
-
-        private void YearToInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckNumeric);
-        }
-
-        private void GstNrInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckGstNr);
-        }
-
-        private void GstNrInput_LostFocus(object sender, RoutedEventArgs evt) {
-            InputLostFocus((TextBox)sender, Validator.CheckGstNr);
-        }
-
-        private void AreaInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckNumeric);
-        }
-    }
-}

Elwig/Windows/BaseDataWindow.xaml

@@ -0,0 +1,235 @@
+<local:AdministrationWindow x:Class="Elwig.Windows.BaseDataWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Windows"
+        mc:Ignorable="d"
+        Title="Stammdaten - Elwig" Height="500" MinHeight="400" Width="800" MinWidth="800"
+        Loaded="Window_Loaded">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="ComboBox">
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="9,3"/>
+            <Setter Property="Height" Value="27"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <TabControl Margin="10,10,10,42">
+            <TabItem Header="Mandant">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="130"/>
+                        <ColumnDefinition Width="*"/>
+                        <ColumnDefinition Width="90"/>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+
+                    <Label Content="Vollständiger Name:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,10,0,10"/>
+                    <TextBox x:Name="ClientNameFull" IsEnabled="False"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Grid.ColumnSpan="3" Margin="0,10,10,10"/>
+
+                    <Label Content="Name:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,40,0,10"/>
+                    <TextBox x:Name="ClientNameInput"
+                             TextChanged="ClientNames_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Grid.ColumnSpan="3" Margin="0,40,10,10"/>
+
+                    <Label Content="Namenszusatz:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,70,0,10"/>
+                    <TextBox x:Name="ClientNameSuffixInput"
+                             TextChanged="ClientNames_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Grid.ColumnSpan="3" Margin="0,70,10,10"/>
+
+                    <Label Content="Gesellschaftsform:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,100,0,10"/>
+                    <TextBox x:Name="ClientNameTypeInput"
+                             TextChanged="ClientNames_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Margin="0,100,10,10"/>
+
+                    <Label Content="Kürzel/Kurzform:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,130,0,10"/>
+                    <TextBox x:Name="ClientNameTokenInput"
+                             TextChanged="TextBox_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="1" Margin="0,130,10,10" Width="70"/>
+                    <TextBox x:Name="ClientNameShortInput"
+                                TextChanged="TextBox_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Margin="75,130,10,10"/>
+
+                    <Label Content="Adresse:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,160,0,10"/>
+                    <TextBox x:Name="ClientAddressInput"
+                             TextChanged="TextBox_TextChanged"
+                             VerticalAlignment="Top" HorizontalAlignment="Stretch" Grid.Column="1" Margin="0,160,10,10"/>
+
+                    <Label Content="PLZ/Ort:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="0" Margin="10,190,0,10"/>
+                    <TextBox x:Name="ClientPlzInput"
+                             Margin="0,190,0,0" Width="42" Grid.Column="1" HorizontalAlignment="Left"
+                             TextChanged="PlzInput_TextChanged" LostFocus="PlzInput_LostFocus"/>
+                    <TextBox x:Name="ClientOrtInput" Margin="47,190,10,0" Grid.Column="1"
+                             TextChanged="TextBox_TextChanged"/>
+
+                    <Label Content="IBAN:" Margin="10,220,0,0" Grid.Column="0"/>
+                    <TextBox x:Name="ClientIbanInput" Margin="0,220,10,0" Grid.Column="1"
+                         TextChanged="IbanInput_TextChanged" LostFocus="IbanInput_LostFocus"/>
+
+                    <Label Content="BIC:" Margin="10,250,0,0" Grid.Column="0"/>
+                    <TextBox x:Name="ClientBicInput" Margin="0,250,10,0" Grid.Column="1"
+                         TextChanged="BicInput_TextChanged" LostFocus="BicInput_LostFocus"/>
+
+                    <Label Content="UID:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,100,0,10"/>
+                    <TextBox x:Name="ClientUstIdNrInput"
+                             VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="3" Margin="0,100,10,10" Width="96"
+                             TextChanged="UstIdNrInput_TextChanged" LostFocus="UstIdNrInput_LostFocus"/>
+
+                    <Label Content="Betriebs-Nr.:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,130,0,10"/>
+                    <TextBox x:Name="ClientLfbisNrInput"
+                             VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="3" Margin="0,130,10,10" Width="64"
+                             TextChanged="LfbisNrInput_TextChanged" LostFocus="LfbisNrInput_LostFocus"/>
+
+                    <Label Content="Telefon-Nr.:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,160,0,10"/>
+                    <TextBox x:Name="ClientPhoneNrInput" Margin="0,160,10,10" Grid.Column="3"
+                             TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
+
+                    <Label Content="Fax-Nr.:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,190,0,10"/>
+                    <TextBox x:Name="ClientFaxNrInput" Margin="0,190,10,10" Grid.Column="3"
+                             TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
+
+                    <Label Content="E-Mail-Adr.:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,220,0,10"/>
+                    <TextBox x:Name="ClientEmailAddressInput" Margin="0,220,10,0" Grid.Column="3"
+                             TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
+
+                    <Label Content="Website:"
+                           VerticalAlignment="Top" HorizontalAlignment="Left" Grid.Column="2" Margin="10,250,0,10"/>
+                    <TextBox x:Name="ClientWebsiteInput" Margin="0,250,10,0" Grid.Column="3"
+                             TextChanged="TextBox_TextChanged"/>
+                </Grid>
+            </TabItem>
+            <TabItem Header="Zweigstellen">
+
+            </TabItem>
+            <TabItem Header="Sortenattribute">
+
+            </TabItem>
+            <TabItem Header="Bewirtschaftungsarten">
+
+            </TabItem>
+            <TabItem Header="Flächenbindungsverträge">
+
+            </TabItem>
+
+            <TabItem Header="Saisons">
+                <Grid>
+                    <ListBox x:Name="SeasonList" HorizontalAlignment="Left" VerticalAlignment="Stretch" Width="150" Margin="10,10,10,10"
+                             SelectionChanged="SeasonList_SelectionChanged">
+                        <ListBox.ItemTemplate>
+                            <DataTemplate>
+                                <StackPanel Orientation="Horizontal">
+                                    <TextBlock Text="{Binding Year}" Width="40"/>
+                                    <TextBlock Text="{Binding Currency.Name}" Width="60"/>
+                                    <TextBlock Text="{Binding Precision}" Width="10"/>
+                                </StackPanel>
+                            </DataTemplate>
+                        </ListBox.ItemTemplate>
+                    </ListBox>
+
+                    <GroupBox Header="Zu-/Abschläge" Margin="170,150,10,10" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
+                        <Grid>
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="400"/>
+                                <ColumnDefinition Width="70"/>
+                                <ColumnDefinition Width="*"/>
+                            </Grid.ColumnDefinitions>
+                            <ListBox x:Name="SeasonModifierList" SelectionChanged="SeasonModifierList_SelectionChanged"
+                                     HorizontalAlignment="Left" VerticalAlignment="Stretch" Width="350" Margin="10,10,10,10">
+                                <ListBox.ItemTemplate>
+                                    <DataTemplate>
+                                        <StackPanel Orientation="Horizontal">
+                                            <TextBlock Text="{Binding ModId}" Width="30"/>
+                                            <TextBlock Text="{Binding Name}" Width="200" Margin="0,0,10,0"/>
+                                            <TextBlock Text="{Binding ValueStr}"/>
+                                        </StackPanel>
+                                    </DataTemplate>
+                                </ListBox.ItemTemplate>
+                            </ListBox>
+                            <Button x:Name="SeasonModifierUpButton" Content="&#xE96D;" FontFamily="Segoe MDL2 Assets" FontSize="10" Padding="0,0,0,0" IsEnabled="False"
+                                    Click="SeasonModifierUpButton_Click"
+                                    VerticalAlignment="Center" HorizontalAlignment="Left" Width="25" Height="25" Margin="365,0,0,90"/>
+                            <Button x:Name="SeasonModifierDownButton" Content="&#xE96E;" FontFamily="Segoe MDL2 Assets" FontSize="10" Padding="0,2,0,0" IsEnabled="False"
+                                    Click="SeasonModifierDownButton_Click"
+                                    VerticalAlignment="Center" HorizontalAlignment="Left" Width="25" Height="25" Margin="365,0,0,30"/>
+                            <Button x:Name="SeasonModifierAddButton" Content="&#xF8AA;" FontFamily="Segoe MDL2 Assets" FontSize="11" Padding="0,1.5,0,0" IsEnabled="False"
+                                    Click="SeasonModifierAddButton_Click"
+                                    VerticalAlignment="Center" HorizontalAlignment="Left" Width="25" Height="25" Margin="365,30,0,0"/>
+                            <Button x:Name="SeasonModifierDeleteButton" Content="&#xF8AB;" FontFamily="Segoe MDL2 Assets" FontSize="11" Padding="0,1.5,0,0" IsEnabled="False"
+                                    Click="SeasonModifierDeleteButton_Click"
+                                    VerticalAlignment="Center" HorizontalAlignment="Left" Width="25" Height="25" Margin="365,90,0,0"/>
+
+                            <Label Content="ID:" Grid.Column="1" Margin="10,10,10,10"/>
+                            <TextBox x:Name="SeasonModifierIdInput" Grid.Column="2" Margin="0,10,10,10" Width="50" HorizontalAlignment="Left"
+                                     TextChanged="SeasonModifierIdInput_TextChanged"/>
+
+                            <Label Content="Name:" Grid.Column="1" Margin="10,40,10,10"/>
+                            <TextBox x:Name="SeasonModifierNameInput" Grid.Column="2" Margin="0,40,10,10"
+                                     TextChanged="SeasonModifierNameInput_TextChanged"/>
+
+                            <Label Content="Relativ:" Grid.Column="1" Margin="10,70,10,10"/>
+                            <TextBox x:Name="SeasonModifierRelInput" Grid.Column="2" Margin="0,70,10,10"
+                                     TextChanged="SeasonModifierRelInput_TextChanged"/>
+
+                            <Label Content="Absolut:" Grid.Column="1" Margin="10,100,10,10"/>
+                            <TextBox x:Name="SeasonModifierAbsInput" Grid.Column="2" Margin="0,100,10,10"
+                                     TextChanged="SeasonModifierAbsInput_TextChanged"/>
+                        </Grid>
+                    </GroupBox>
+                </Grid>
+            </TabItem>
+            <TabItem Header="Parameter">
+
+            </TabItem>
+            <TabItem Header="Textelemente">
+
+            </TabItem>
+        </TabControl>
+
+        <Button x:Name="EditButton" Content="Bearbeiten"
+                HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,0,0,10" Width="120"
+                Click="EditButton_Click"/>
+        <Button x:Name="SaveButton" Content="Speichern" IsEnabled="False"
+                HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,0,250,10" Width="120"
+                Click="SaveButton_Click"/>
+        <Button x:Name="ResetButton" Content="Zurücksetzen" IsEnabled="False" Visibility="Hidden"
+                HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,0,0,10" Width="120"
+                Click="ResetButton_Click"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" IsEnabled="False" IsCancel="True"
+                HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="250,0,0,10" Width="120"
+                Click="CancelButton_Click"/>
+    </Grid>
+</local:AdministrationWindow>

Elwig/Windows/BaseDataWindow.xaml.cs

@@ -0,0 +1,343 @@
+using Elwig.Helpers;
+using Elwig.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace Elwig.Windows {
+    public partial class BaseDataWindow : AdministrationWindow {
+
+        private Dictionary<string, string?>? Modifiers = null;
+        private Dictionary<Modifier, string>? ModifierIds = null;
+        private ObservableCollection<Modifier>? ModifierList = null;
+        private bool ModifiersChanged = false;
+        private bool ModifierUpdate = false;
+
+        public BaseDataWindow() {
+            InitializeComponent();
+            RequiredInputs = new Control[] {
+                ClientNameInput, ClientNameTypeInput, ClientNameTokenInput, ClientNameShortInput,
+                ClientAddressInput, ClientPlzInput, ClientOrtInput,
+            };
+            ExemptInputs = new Control[] {
+                ClientNameFull,
+                SeasonModifierIdInput, SeasonModifierNameInput, SeasonModifierRelInput, SeasonModifierAbsInput,
+            };
+        }
+
+        new protected void LockInputs() {
+            base.LockInputs();
+            SeasonModifierIdInput.IsReadOnly = true;
+            SeasonModifierNameInput.IsReadOnly = true;
+            SeasonModifierRelInput.IsReadOnly = true;
+            SeasonModifierAbsInput.IsReadOnly = true;
+        }
+
+        new protected void UnlockInputs() {
+            base.UnlockInputs();
+            SeasonModifierIdInput.IsReadOnly = false;
+            SeasonModifierNameInput.IsReadOnly = false;
+            SeasonModifierRelInput.IsReadOnly = false;
+            SeasonModifierAbsInput.IsReadOnly = false;
+        }
+
+        private void Window_Loaded(object sender, RoutedEventArgs evt) {
+            LockInputs();
+            FillInputs(App.Client);
+        }
+
+        protected override async Task RenewContext() {
+            await base.RenewContext();
+            ControlUtils.RenewItemsSource(SeasonList, await Context.Seasons.OrderByDescending(s => s.Year).ToListAsync(), s => (s as Season)?.Year, null, ControlUtils.RenewSourceDefault.First);
+            var year = (SeasonList.SelectedItem as Season)?.Year;
+            ControlUtils.RenewItemsSource(SeasonModifierList, await Context.Modifiers.Where(m => m.Year == year).OrderBy(m => m.Ordering).ToListAsync(), m => (m as Modifier)?.ModId);
+        }
+
+        protected override void UpdateButtons() {
+            if (!IsEditing && !IsCreating) return;
+            bool ch = ModifiersChanged || HasChanged, v = IsValid;
+            CancelButton.IsEnabled = true;
+            ResetButton.IsEnabled = ch;
+            SaveButton.IsEnabled = ch && v;
+            SeasonModifierUpButton.IsEnabled = SeasonModifierList.SelectedIndex >= 1;
+            SeasonModifierDownButton.IsEnabled = SeasonModifierList.SelectedIndex != -1 && SeasonModifierList.SelectedIndex < (ModifierList?.Count - 1 ?? 0);
+            SeasonModifierAddButton.IsEnabled = true;
+            SeasonModifierDeleteButton.IsEnabled = SeasonModifierList.SelectedIndex != -1;
+        }
+
+        private void ModifiersInitEditing() {
+            var year = (SeasonList.SelectedItem as Season)?.Year;
+            Context.ChangeTracker.Clear();
+            ModifierList = new(Context.Modifiers.Where(m => m.Year == year).OrderBy(m => m.Ordering).ToList());
+            Modifiers = ModifierList.ToDictionary(m => m.ModId, m => m.ModId);
+            ModifierIds = ModifierList.ToDictionary(m => m, m => m.ModId);
+            ControlUtils.RenewItemsSource(SeasonModifierList, ModifierList, m => (m as Modifier)?.ModId);
+        }
+
+        private void ModifiersFinishEditing() {
+            var year = (SeasonList.SelectedItem as Season)?.Year;
+            ControlUtils.RenewItemsSource(SeasonModifierList, Context.Modifiers.Where(m => m.Year == year).OrderBy(m => m.Ordering).ToList(), m => (m as Modifier)?.ModId);
+            ModifierList = null;
+            Modifiers = null;
+            ModifierIds = null;
+            ModifiersChanged = false;
+
+            SeasonModifierUpButton.IsEnabled = false;
+            SeasonModifierDownButton.IsEnabled = false;
+            SeasonModifierAddButton.IsEnabled = false;
+            SeasonModifierDeleteButton.IsEnabled = false;
+        }
+
+        private async Task ModifiersSave() {
+            if (!ModifiersChanged || ModifierList == null || Modifiers == null || ModifierIds == null) return;
+            int i = 0;
+            foreach (var mod in ModifierList) mod.Ordering = ++i;
+
+            var year = (SeasonList.SelectedItem as Season)?.Year;
+            foreach (var (modid, _) in Modifiers.Where(m => m.Value == null)) {
+                Context.Remove(Context.Modifiers.Find(new object?[] { year, modid }));
+            }
+            foreach (var (mod, old) in ModifierIds) {
+                mod.ModId = old;
+            }
+            foreach (var (old, modid) in Modifiers.Where(m => m.Value != null)) {
+                Context.Update(Context.Modifiers.Find(new object?[] { year, old }));
+            }
+            await Context.SaveChangesAsync();
+
+            foreach (var (old, modid) in Modifiers.Where(m => m.Value != null)) {
+                await Context.Database.ExecuteSqlAsync($"UPDATE modifier SET modid = {modid} WHERE (year, modid) = ({year}, {old})");
+            }
+            await Context.SaveChangesAsync();
+
+            foreach (var mod in ModifierList.Where(m => !ModifierIds.ContainsKey(m))) {
+                await Context.AddAsync(mod);
+            }
+            await Context.SaveChangesAsync();
+        }
+
+        private void EditButton_Click(object sender, RoutedEventArgs evt) {
+            IsEditing = true;
+            EditButton.Visibility = Visibility.Hidden;
+            ResetButton.Visibility = Visibility.Visible;
+
+            ModifiersInitEditing();
+            UnlockInputs();
+            UpdateButtons();
+        }
+
+        private void CancelButton_Click(object sender, RoutedEventArgs evt) {
+            IsEditing = false;
+            IsCreating = false;
+            EditButton.Visibility = Visibility.Visible;
+            ResetButton.Visibility = Visibility.Hidden;
+            CancelButton.IsEnabled = false;
+            SaveButton.IsEnabled = false;
+            ResetButton.IsEnabled = false;
+            ModifiersFinishEditing();
+
+            ClearInputStates();
+            FillInputs(App.Client);
+            LockInputs();
+        }
+
+        private void ResetButton_Click(object sender, RoutedEventArgs evt) {
+            ModifiersChanged = false;
+            ModifiersInitEditing();
+            ClearInputStates();
+            FillInputs(App.Client);
+            UpdateButtons();
+        }
+
+        private async void SaveButton_Click(object sender, RoutedEventArgs evt) {
+            try {
+                await UpdateClientParameters(App.Client);
+                await ModifiersSave();
+            } catch (Exception exc) {
+                var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
+                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
+                MessageBox.Show(str, "Stammdaten aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+
+            IsEditing = false;
+            IsCreating = false;
+            EditButton.Visibility = Visibility.Visible;
+            ResetButton.Visibility = Visibility.Hidden;
+            CancelButton.IsEnabled = false;
+            SaveButton.IsEnabled = false;
+            ResetButton.IsEnabled = false;
+            ModifiersFinishEditing();
+
+            ClearInputStates();
+            FillInputs(App.Client);
+            LockInputs();
+        }
+
+        private void FillInputs(ClientParameters p) {
+            ClearOriginalValues();
+            ClearDefaultValues();
+
+            ClientNameInput.Text = p.Name;
+            ClientNameSuffixInput.Text = p.NameSuffix;
+            ClientNameTypeInput.Text = p.NameType;
+            ClientNameTokenInput.Text = p.NameToken;
+            ClientNameShortInput.Text = p.NameShort;
+            ClientAddressInput.Text = p.Address;
+            ClientPlzInput.Text = p.Plz.ToString();
+            ClientOrtInput.Text = p.Ort;
+            ClientIbanInput.Text = p.Iban;
+            ClientBicInput.Text = p.Bic;
+            ClientUstIdNrInput.Text = p.UstIdNr;
+            ClientLfbisNrInput.Text = p.LfbisNr;
+            ClientPhoneNrInput.Text = p.PhoneNr;
+            ClientFaxNrInput.Text = p.FaxNr;
+            ClientEmailAddressInput.Text = p.EmailAddress;
+            ClientWebsiteInput.Text = p.Website;
+
+            FinishInputFilling();
+        }
+
+        private async Task UpdateClientParameters(ClientParameters p) {
+            p.Name = ClientNameInput.Text;
+            p.NameSuffix = ClientNameSuffixInput.Text.Length > 0 ? ClientNameSuffixInput.Text : null;
+            p.NameType = ClientNameTypeInput.Text;
+            p.NameToken = ClientNameTokenInput.Text;
+            p.NameShort = ClientNameShortInput.Text;
+            p.Address = ClientAddressInput.Text;
+            p.Plz = int.Parse(ClientPlzInput.Text);
+            p.Ort = ClientOrtInput.Text;
+            p.Iban = ClientIbanInput.Text.Length > 0 ? ClientIbanInput.Text.Replace(" ", "") : null;
+            p.Bic = ClientBicInput.Text.Length > 0 ? ClientBicInput.Text : null;
+            p.UstIdNr = ClientUstIdNrInput.Text.Length > 0 ? ClientUstIdNrInput.Text : null;
+            p.LfbisNr = ClientLfbisNrInput.Text.Length > 0 ? ClientLfbisNrInput.Text : null;
+            p.PhoneNr = ClientPhoneNrInput.Text.Length > 0 ? ClientPhoneNrInput.Text : null;
+            p.FaxNr = ClientFaxNrInput.Text.Length > 0 ? ClientFaxNrInput.Text : null;
+            p.EmailAddress = ClientEmailAddressInput.Text.Length > 0 ? ClientEmailAddressInput.Text : null;
+            p.Website = ClientWebsiteInput.Text.Length > 0 ? ClientWebsiteInput.Text : null;
+
+            await p.UpdateValues();
+        }
+
+        private void SeasonModifierUpButton_Click(object sender, RoutedEventArgs evt) {
+            if (ModifierList == null) return;
+            ModifiersChanged = true;
+            var idx = SeasonModifierList.SelectedIndex;
+            var item = ModifierList[idx];
+            ModifierList.RemoveAt(idx);
+            idx--;
+            ModifierList.Insert(idx, item);
+            SeasonModifierList.SelectedIndex = idx;
+            UpdateButtons();
+        }
+
+        private void SeasonModifierDownButton_Click(object sender, RoutedEventArgs evt) {
+            if (ModifierList == null) return;
+            ModifiersChanged = true;
+            var idx = SeasonModifierList.SelectedIndex;
+            var item = ModifierList[idx];
+            ModifierList.RemoveAt(idx);
+            idx++;
+            ModifierList.Insert(idx, item);
+            SeasonModifierList.SelectedIndex = idx;
+            UpdateButtons();
+        }
+
+        private void SeasonModifierAddButton_Click(object sender, RoutedEventArgs evt) {
+            if (ModifierList == null || SeasonList.SelectedItem is not Season s) return;
+            ModifiersChanged = true;
+            var idx = (SeasonModifierList.SelectedIndex != -1) ? SeasonModifierList.SelectedIndex + 1 : ModifierList.Count;
+            var item = Context.CreateProxy<Modifier>();
+            item.Year = s.Year;
+            ModifierList.Insert(idx, item);
+            SeasonModifierList.SelectedIndex = idx;
+            UpdateButtons();
+        }
+
+        private void SeasonModifierDeleteButton_Click(object sender, RoutedEventArgs evt) {
+            if (ModifierList == null || Modifiers == null) return;
+            ModifiersChanged = true;
+            var idx = SeasonModifierList.SelectedIndex;
+            var item = ModifierList[idx];
+            Modifiers[item.ModId] = null;
+            ModifierList.RemoveAt(idx);
+            SeasonModifierList.SelectedIndex = idx < ModifierList.Count ? idx : idx - 1;
+            UpdateButtons();
+        }
+
+
+        private void ClientNames_TextChanged(object sender, TextChangedEventArgs evt) {
+            var suffix = ClientNameSuffixInput.Text.Length > 0 ? ClientNameSuffixInput.Text : null;
+            ClientNameFull.Text = $"{ClientNameInput.Text}{(suffix != null ? $", {suffix}," : "")} {ClientNameTypeInput.Text}";
+            TextBox_TextChanged(sender, evt);
+        }
+
+        private async void SeasonList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            var year = (SeasonList.SelectedItem as Season)?.Year;
+            SeasonModifierList.ItemsSource = await Context.Modifiers.Where(m => m.Year == year).OrderBy(m => m.Ordering).ToListAsync();
+        }
+
+        private void SeasonModifierList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            UpdateButtons();
+            ModifierUpdate = true;
+            if (SeasonModifierList.SelectedItem is not Modifier mod) {
+                SeasonModifierIdInput.Text = "";
+                SeasonModifierNameInput.Text = "";
+                SeasonModifierRelInput.Text = "";
+                SeasonModifierAbsInput.Text = "";
+            } else {
+                SeasonModifierIdInput.Text = mod.ModId;
+                SeasonModifierNameInput.Text = mod.Name;
+                SeasonModifierRelInput.Text = (mod.Rel * 100)?.ToString();
+                SeasonModifierAbsInput.Text = mod.Abs?.ToString();
+            }
+            ModifierUpdate = false;
+        }
+
+        private void SeasonModifierIdInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            if ((!IsEditing && !IsCreating) || SeasonModifierList.SelectedItem is not Modifier mod || Modifiers == null || ModifierIds == null) return;
+            ModifiersChanged = ModifiersChanged || (SeasonModifierIdInput.Text ?? "") != ((SeasonModifierList.SelectedItem as Modifier)?.ModId ?? "");
+            if (ModifierUpdate) return;
+            var old = ModifierIds.GetValueOrDefault(mod);
+            var id = SeasonModifierIdInput.Text ?? "";
+            if (old != null) Modifiers[old] = id;
+            mod.ModId = id;
+            CollectionViewSource.GetDefaultView(ModifierList).Refresh();
+            UpdateButtons();
+        }
+
+        private void SeasonModifierNameInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            if ((!IsEditing && !IsCreating) || SeasonModifierList.SelectedItem is not Modifier mod) return;
+            ModifiersChanged = ModifiersChanged || (SeasonModifierNameInput.Text ?? "") != ((SeasonModifierList.SelectedItem as Modifier)?.Name ?? "");
+            if (ModifierUpdate) return;
+            mod.Name = SeasonModifierNameInput.Text ?? "";
+            CollectionViewSource.GetDefaultView(ModifierList).Refresh();
+            UpdateButtons();
+        }
+
+        private void SeasonModifierRelInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            if ((!IsEditing && !IsCreating) || SeasonModifierList.SelectedItem is not Modifier mod) return;
+            ModifiersChanged = ModifiersChanged || (SeasonModifierRelInput.Text ?? "") != ((SeasonModifierList.SelectedItem as Modifier)?.Rel?.ToString() ?? "");
+            if (ModifierUpdate) return;
+            mod.Rel = decimal.TryParse(SeasonModifierRelInput.Text, out var v) ? v / 100 : null;
+            if (mod.Rel != null) SeasonModifierAbsInput.Text = "";
+            CollectionViewSource.GetDefaultView(ModifierList).Refresh();
+            UpdateButtons();
+        }
+
+        private void SeasonModifierAbsInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            if ((!IsEditing && !IsCreating) || SeasonModifierList.SelectedItem is not Modifier mod) return;
+            ModifiersChanged = ModifiersChanged || (SeasonModifierAbsInput.Text ?? "") != ((SeasonModifierList.SelectedItem as Modifier)?.Abs?.ToString() ?? "");
+            if (ModifierUpdate) return;
+            mod.Abs = decimal.TryParse(SeasonModifierAbsInput.Text, out var v) ? v : null;
+            if (mod.Abs != null) SeasonModifierRelInput.Text = "";
+            CollectionViewSource.GetDefaultView(ModifierList).Refresh();
+            UpdateButtons();
+        }
+    }
+}

Elwig/Windows/ChartWindow.xaml

@@ -0,0 +1,188 @@
+<local:AdministrationWindow x:Class="Elwig.Windows.ChartWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Windows"
+        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
+        xmlns:ScottPlot="clr-namespace:ScottPlot;assembly=ScottPlot.WPF"
+        mc:Ignorable="d"
+        Title="Auszahlung - Elwig" Height="700" Width="1500"
+        Loaded="Window_Loaded">
+
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="IsReadOnly" Value="True"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="ComboBox">
+            <Setter Property="IsEnabled" Value="False"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="9,3"/>
+            <Setter Property="Height" Value="27"/>
+        </Style>
+    </Window.Resources>
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="19"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="330"/>
+            <ColumnDefinition Width="1*"/>
+            <ColumnDefinition Width="200"/>
+        </Grid.ColumnDefinitions>
+
+        <Grid Grid.Row="1" Margin="5,0,0,0">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="*"/>
+                <RowDefinition Height="42"/>
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            
+            <DataGrid x:Name="GraphList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
+                      CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False"
+                      SelectionChanged="GraphList_SelectionChanged"
+                      Margin="5,15,5,0" Grid.Row="0" FontSize="14" Grid.ColumnSpan="3">
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="Nr."    Binding="{Binding Num}"       Width="40">
+                        <DataGridTextColumn.ElementStyle>
+                            <Style>
+                                <Setter Property="TextBlock.TextWrapping" Value="Wrap" />
+                            </Style>
+                        </DataGridTextColumn.ElementStyle>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Header="Typ"    Binding="{Binding Type}"       Width="40"/>
+                    <DataGridTextColumn Header="Angewandte Verträge" Binding="{Binding Contracts}" Width="4*"/>
+                </DataGrid.Columns>
+            </DataGrid>
+
+            <Button x:Name="NewButton" Content="Neu"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="NewButton_Click"/>
+            <Button x:Name="EditButton" Content="Bearbeiten" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
+                    Click="EditButton_Click"/>
+            <Button x:Name="DeleteButton" Content="Löschen" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
+                    Click="DeleteButton_Click"/>
+
+            <Button x:Name="SaveButton" Content="Speichern" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="SaveButton_Click"/>
+            <Button x:Name="ResetButton" Content="Zurücksetzen" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
+                    Click="ResetButton_Click"/>
+            <Button x:Name="CancelButton" Content="Abbrechen" IsEnabled="False" Visibility="Hidden" IsCancel="True"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
+                    Click="CancelButton_Click"/>
+        </Grid>
+
+        <Grid Grid.Row="1" Grid.Column="1">
+            <ScottPlot:WpfPlot x:Name="OechslePricePlot" MouseMove="OechslePricePlot_MouseMove" MouseDown="OechslePricePlot_MouseDown" IsEnabled="False"/>
+        </Grid>
+
+        <Grid Grid.Row="1" Grid.Column="2" Margin="0,0,5,0">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="120"/>
+                <RowDefinition Height="120"/>
+                <RowDefinition Height="210"/>
+                <RowDefinition Height="110"/>
+                <RowDefinition Height="42"/>
+            </Grid.RowDefinitions>
+
+            <GroupBox Header="Graph" Grid.Row="0" Margin="0,5,5,5">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="85"/>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+
+                    <Label Content="Nummer:" Margin="10,10,0,0" Grid.Column="0"/>
+                    <TextBox x:Name="GraphNumberInput" Grid.Column="1" HorizontalAlignment="Left" Margin="0,10,0,0" Text="" Width="90" TextChanged="GraphNumberInput_TextChanged" LostFocus="GraphNumberInput_LostFocus"/>
+
+                    <Label Content="Typ:" Margin="10,45,0,0" Grid.Column="0"/>
+                    <RadioButton x:Name="OechsleGraphType_Input" GroupName="GraphType" Grid.Column="1" Margin="0,45,0,0">Oechsle</RadioButton>
+                    <RadioButton x:Name="KmwGraphType_Input" GroupName="GraphType" Grid.Column="1" Margin="0,60,0,0">KMW</RadioButton>
+                </Grid>
+            </GroupBox>
+
+            <GroupBox Header="Datenpunkt" Grid.Row="1" Margin="0,5,5,5">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="85"/>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+
+                    <Label Content="Oechsle:" Margin="10,10,0,0" Grid.Column="0"/>
+                    <TextBox x:Name="OechsleInput" Grid.Column="1" HorizontalAlignment="Left" Margin="0,10,0,0" Text="" Width="90" TextChanged="OechsleInput_TextChanged" LostFocus="OechsleInput_LostFocus"/>
+
+                    <Label Content="Preis pro kg:" Margin="10,40,0,0" Grid.Column="0"/>
+                    <TextBox x:Name="PriceInput" Grid.Column="1" HorizontalAlignment="Left" Margin="0,40,0,0" Text="" Width="90" TextChanged="PriceInput_TextChanged" LostFocus="PriceInput_LostFocus"/>
+
+                </Grid>
+            </GroupBox>
+
+            <GroupBox Header="Aktionen" Grid.Row="2" Margin="0,5,5,5">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+
+                    <Button x:Name="LeftFlatButton" Content="Links flach" Click="LeftFlatButton_Click" IsEnabled="False"
+                            HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="10,10,10,10"/>
+
+                    <Button x:Name="RightFlatButton" Content="Rechts flach" Click="RightFlatButton_Click" IsEnabled="False"
+                            HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="10,50,10,10"/>
+
+                    <Button x:Name="InterpolateButton" Content="Interpolieren" Click="InterpolateButton_Click" IsEnabled="False"
+                            HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="10,90,10,10"/>
+
+                    <Button x:Name="LinearIncreaseButton" Content="Linear wachsen" Click="LinearIncreaseButton_Click" IsEnabled="False"
+                            HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="10,130,10,10"/>
+                </Grid>
+            </GroupBox>
+
+            <GroupBox Header="Optionen" Grid.Row="3" Margin="0,5,5,5">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+
+                    <CheckBox x:Name="FreeZoomInput" Content="Freier Zoom" IsEnabled="False"
+                            Checked="FreeZoomInput_Changed" Unchecked="FreeZoomInput_Changed"
+                            HorizontalAlignment="Left" Margin="10,10,10,0" VerticalAlignment="Top"/>
+
+                    <CheckBox x:Name="GradationLinesInput" Content="Gradationslinien anzeigen" IsEnabled="False"
+                            Checked="GradationLinesInput_Changed" Unchecked="GradationLinesInput_Changed"
+                            HorizontalAlignment="Left" Margin="10,30,10,0" VerticalAlignment="Top" IsChecked="True"/>
+
+                    <CheckBox x:Name="TooltipInput" Content="Tooltips anzeigen" IsEnabled="False"
+                            HorizontalAlignment="Left" Margin="10,50,10,0" VerticalAlignment="Top" IsChecked="True"/>
+                </Grid>
+            </GroupBox>
+        </Grid>
+    </Grid>
+</local:AdministrationWindow>

Elwig/Windows/ChartWindow.xaml.cs

@@ -0,0 +1,750 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Diagnostics.Contracts;
+using System.Drawing;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using Elwig.Helpers;
+using Elwig.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using Newtonsoft.Json.Linq;
+using ScottPlot;
+using ScottPlot.Plottable;
+
+namespace Elwig.Windows {
+    public partial class ChartWindow : AdministrationWindow {
+
+        private readonly int Year = 2021;
+        private readonly int AvNr = 2;
+
+        private ScatterPlot OechslePricePlotScatter;
+        private MarkerPlot HighlightedPoint;
+        private MarkerPlot PrimaryMarkedPoint;
+        private MarkerPlot SecondaryMarkedPoint;
+        private Tooltip Tooltip;
+
+        private int LastHighlightedIndex = -1;
+        private int HighlightedIndex = -1;
+        private int PrimaryMarkedPointIndex = -1;
+        private int SecondaryMarkedPointIndex = -1;
+        private bool HoverChanged = false;
+        private bool HoverActive = false;
+
+        private const int MinOechsle = 50;
+        private const int MaxOechsle = 140;
+
+        private Graph? Graph;
+
+        public ChartWindow() {
+            InitializeComponent();
+
+            ExemptInputs = new Control[] {
+                GraphList, OechsleInput, PriceInput, FreeZoomInput, GradationLinesInput, TooltipInput
+            };
+        }
+
+        private void Window_Loaded(object sender, RoutedEventArgs evt) {
+            LockInputs();
+            OechslePricePlot.IsEnabled = false;
+        }
+
+        private async Task RefreshGraphList() {
+            await Context.PaymentVariants.LoadAsync();
+            await RefreshGraphListQuery();
+        }
+
+        private async Task RefreshGraphListQuery(bool updateSort = false) {
+            List<PaymentVar> paymentVars = await Context.PaymentVariants.Where(p => p.Year == Year && p.AvNr == AvNr).ToListAsync();
+
+            if (paymentVars.Count != 1) {
+                return;
+            }
+
+            PaymentVar paymentVar = paymentVars[0];
+            var data = JToken.Parse(paymentVar.Data);
+
+            var auszahlungsSorten = data["AuszahlungSorten"];
+            if (auszahlungsSorten == null) {
+                return;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"];
+
+            if (Graphs == null) {
+                return;
+            }
+
+            List<Graph> GraphsList = new();
+
+            int i = 1;
+            foreach (var graph in Graphs) {
+                GraphsList.Add(new Graph("Oe", i, graph, ParseContracts(auszahlungsSorten, i - 1), 50, 140));
+                i++;
+            }
+
+            ControlUtils.RenewItemsSource(GraphList, GraphsList, g => (g as Graph)?.Num);
+            if (GraphsList.Count == 1) {
+                GraphList.SelectedIndex = 0;
+            }
+
+            RefreshInputs();
+        }
+
+        private String ParseContracts(JToken auszahlungsSorten, int num) {
+            List<string> contracts = new();
+
+            foreach (var sorte in auszahlungsSorten.Children().OfType<JToken>()) {
+                if (((JProperty)sorte).Name == "Kurven") {
+                    continue;
+                }
+                foreach (var attribut in sorte.Values().OfType<JToken>()) {
+                    foreach (var bindung in attribut.Values().OfType<JProperty>()) {
+                        if ((int)(bindung).Value == num) {
+                            contracts.Add($"{((JProperty)sorte).Name}/{((JProperty)attribut).Name}/{bindung.Name}");
+                        }
+                    }
+                }
+            }
+
+            return string.Join("\n", contracts.ToArray());
+        }
+
+        private async Task<bool> RemoveGraph(int num) {
+            List<PaymentVar> paymentVars = await Context.PaymentVariants.Where(p => p.Year == Year && p.AvNr == AvNr).ToListAsync();
+
+            if (paymentVars.Count != 1) {
+                return false;
+            }
+
+            PaymentVar paymentVar = paymentVars[0];
+            var data = JToken.Parse(paymentVar.Data);
+
+            var auszahlungsSorten = data["AuszahlungSorten"];
+            if (auszahlungsSorten == null) {
+                return false;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"];
+
+            if (Graphs == null) {
+                return false;
+            }
+
+            int i = 1;
+            foreach (var graph in Graphs) {
+                if (i == num) {
+                    graph.Remove();
+                    break;
+                }
+                i++;
+            }
+
+            foreach (var sorte in auszahlungsSorten.Children().OfType<JToken>()) {
+                if (((JProperty)sorte).Name == "Kurven") {
+                    continue;
+                }
+                foreach (var attribut in sorte.Values().OfType<JToken>()) {
+                    List<JProperty> itemsToRemove = new();
+                    foreach (var bindung in attribut.Values().OfType<JProperty>()) {
+                        if ((int)bindung.Value == num - 1) {
+                            itemsToRemove.Add(bindung);
+                        } else if ((int)bindung.Value > num - 1) {
+                            bindung.Value = (int)bindung.Value - 1;
+                        }
+                    }
+                    itemsToRemove.ForEach(i => i.Remove());
+                }
+            }
+
+            EntityEntry<PaymentVar>? tr = null;
+            try {
+                paymentVar.Data = data.ToString();
+                tr = Context.Update(paymentVar);
+
+                await Context.SaveChangesAsync();
+            } catch (Exception exc) {
+                if (tr != null) await tr.ReloadAsync();
+                var str = "Der Eintrag konnte nicht in der Datenbank gelöscht werden!\n\n" + exc.Message;
+                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
+                MessageBox.Show(str, "Graph löschen", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+
+            return true;
+        }
+
+        private void RefreshInputs(bool validate = false) {
+            ResetPlot();
+            ClearInputStates();
+            if (GraphList.SelectedItem is Graph g) {
+                EditButton.IsEnabled = true;
+                DeleteButton.IsEnabled = true;
+                EnableOptionButtons();
+                FillInputs(g);
+            } else {
+                EditButton.IsEnabled = false;
+                DeleteButton.IsEnabled = false;
+                DisableOptionButtons();
+                ClearOriginalValues();
+                ClearInputs(validate);
+                ClearInputStates();
+            }
+            GC.Collect();
+        }
+
+        private void FillInputs(Graph g) {
+            ClearOriginalValues();
+
+            Graph = (Graph)g.Clone();
+            
+            GraphNumberInput.Text = Graph.Num.ToString();
+            if (Graph.Type == "oe") {
+                OechsleGraphType_Input.IsChecked = true;
+            } else if (Graph.Type == "kmw") {
+                KmwGraphType_Input.IsChecked = true;
+            }
+
+            InitPlot();
+            OechslePricePlot.IsEnabled = true;
+
+            FinishInputFilling();
+        }
+
+        private void InitInputs() {
+            GraphNumberInput.Text = (GraphList.Items.Count + 1).ToString();
+            OechsleGraphType_Input.IsChecked = true;
+            FinishInputFilling();
+        }
+
+        protected override async Task RenewContext() {
+            await base.RenewContext();
+            await RefreshGraphList();
+        }
+
+        private void InitPlot() {
+            OechslePricePlotScatter = OechslePricePlot.Plot.AddScatter(Graph.DataX, Graph.DataY);
+
+            OechslePricePlotScatter.LineColor = Color.Blue;
+            OechslePricePlotScatter.MarkerColor = Color.Blue;
+            OechslePricePlotScatter.MarkerSize = 9;
+
+            //OechslePricePlot.Plot.XAxis.ManualTickSpacing(1);
+            OechslePricePlot.Plot.YAxis.ManualTickSpacing(0.1);
+            OechslePricePlot.Plot.SetAxisLimits(MinOechsle - 1, MaxOechsle + 1, -0.1, 2);
+            
+            OechslePricePlot.Plot.Layout(padding: 0);
+            OechslePricePlot.Plot.XAxis2.Layout(padding: 0);
+            OechslePricePlot.Plot.YAxis.Layout(padding: 0);
+            OechslePricePlot.Plot.YAxis2.Layout(padding: 0);
+
+            HighlightedPoint = OechslePricePlot.Plot.AddPoint(0, 0);
+            HighlightedPoint.Color = Color.Red;
+            HighlightedPoint.MarkerSize = 10;
+            HighlightedPoint.MarkerShape = MarkerShape.openCircle;
+            HighlightedPoint.IsVisible = false;
+
+            PrimaryMarkedPoint = OechslePricePlot.Plot.AddPoint(0, 0);
+            PrimaryMarkedPoint.Color = Color.Red;
+            PrimaryMarkedPoint.MarkerSize = 6;
+            PrimaryMarkedPoint.MarkerShape = MarkerShape.filledCircle;
+            PrimaryMarkedPoint.IsVisible = false;
+
+            SecondaryMarkedPoint = OechslePricePlot.Plot.AddPoint(0, 0);
+            SecondaryMarkedPoint.Color = Color.Red;
+            SecondaryMarkedPoint.MarkerSize = 6;
+            SecondaryMarkedPoint.MarkerShape = MarkerShape.filledCircle;
+            SecondaryMarkedPoint.IsVisible = false;
+
+            OechslePricePlot.Refresh();
+
+            RefreshFreeZoom();
+            RefreshGradationLines();
+        }
+
+        private void ResetPlot() {
+            Graph = null;
+            PrimaryMarkedPointIndex = -1;
+            OechslePricePlot.Plot.Remove(OechslePricePlotScatter);
+            OechslePricePlot.Plot.Clear();
+            OechslePricePlot.Reset();
+            OechslePricePlot.Refresh();
+        }
+
+        private void ChangeMarker(MarkerPlot point, bool visible, double x = 0, double y = 0) {
+            point.X = x;
+            point.Y = y;
+            point.IsVisible = visible;
+        }
+
+        private void FlattenGraph(int begin, int end, double value) {
+            for (int i = begin; i <= end; i++) {
+                Graph.DataY[i] = value;
+            }
+            OechslePricePlot.Render();
+        }
+
+        private void LinearIncreaseGraph(int begin, int end, double inc) {
+            for (int i = begin; i < end; i++) {
+                Graph.DataY[i + 1] = Graph.DataY[i] + inc;
+            }
+            OechslePricePlot.Render();
+        }
+
+        private void EnableActionButtons() {
+            LeftFlatButton.IsEnabled = true; 
+            RightFlatButton.IsEnabled = true; 
+            LinearIncreaseButton.IsEnabled = true;
+        }
+
+        private void DisableActionButtons() {
+            LeftFlatButton.IsEnabled = false;
+            RightFlatButton.IsEnabled = false;
+            InterpolateButton.IsEnabled = false;
+            LinearIncreaseButton.IsEnabled = false;
+        }
+
+        private void FreeZoomInput_Changed(object sender, RoutedEventArgs evt) {
+            RefreshFreeZoom();
+        }
+
+        private void RefreshFreeZoom() {
+            if (FreeZoomInput.IsChecked == true) {
+                UnlockZoom();
+            } else {
+                LockZoom();
+            }
+            OechslePricePlot.Refresh();
+        }
+
+        private void LockZoom() {
+            OechslePricePlot.Plot.XAxis.SetBoundary(MinOechsle - 1, MaxOechsle + 1);
+            OechslePricePlot.Plot.YAxis.SetBoundary(-0.1, 2);
+            OechslePricePlot.Plot.XAxis.SetZoomOutLimit(MaxOechsle - MinOechsle + 2);
+            OechslePricePlot.Plot.YAxis.SetZoomOutLimit(2.1);
+            OechslePricePlot.Plot.SetAxisLimits(MinOechsle - 1, MaxOechsle + 1, -0.1, 2);
+        }
+
+        private void UnlockZoom() {
+            OechslePricePlot.Plot.XAxis.SetBoundary();
+            OechslePricePlot.Plot.YAxis.SetBoundary();
+            OechslePricePlot.Plot.XAxis.SetZoomOutLimit((MaxOechsle - MinOechsle) * 1.5);
+            OechslePricePlot.Plot.YAxis.SetZoomOutLimit(3.5);
+        }
+
+        private void EnableOptionButtons() {
+            FreeZoomInput.IsEnabled = true;
+            GradationLinesInput.IsEnabled = true;
+            TooltipInput.IsEnabled = true;
+        }
+
+        private void DisableOptionButtons() {
+            FreeZoomInput.IsEnabled = false;
+            GradationLinesInput.IsEnabled = false;
+            TooltipInput.IsEnabled = false;
+        }
+
+        private void GradationLinesInput_Changed(object sender, RoutedEventArgs evt) {
+            RefreshGradationLines();
+        }
+
+        private void RefreshGradationLines() {
+            if (GradationLinesInput.IsChecked == true) {
+                ShowGradationLines();
+                ShowLegend();
+            } else {
+                HideGradationLines();
+                HideLegend();
+            }
+            OechslePricePlot.Refresh();
+        }
+
+        private void ShowGradationLines() {
+            OechslePricePlot.Plot.AddVerticalLine(68, Color.Red, 2, label: "68 Oechsle (LDW)");
+            OechslePricePlot.Plot.AddVerticalLine(73, Color.Orange, 2, label: "73 Oechsle (QUW)");
+            OechslePricePlot.Plot.AddVerticalLine(84, Color.Green, 2, label: "84 Oechsle (KAB)");
+        }
+
+        private void HideGradationLines() {
+            OechslePricePlot.Plot.Clear(typeof(VLine));
+        }
+
+        private void ShowLegend() {
+            OechslePricePlot.Plot.Legend(true, Alignment.UpperRight);
+        }
+
+        private void HideLegend() {
+            OechslePricePlot.Plot.Legend(false, Alignment.UpperRight);
+        }
+
+        private void OechsleInput_TextChanged(object sender, RoutedEventArgs evt) {
+            IntegerInput_TextChanged(sender, evt);
+
+            bool success = int.TryParse(OechsleInput.Text, out int oechsle);
+
+            SecondaryMarkedPointIndex = -1;
+            ChangeMarker(SecondaryMarkedPoint, false);
+
+            if (success) {
+                if (oechsle >= MinOechsle && oechsle <= MaxOechsle) {
+                    PrimaryMarkedPointIndex = oechsle - MinOechsle;
+                    ChangeMarker(PrimaryMarkedPoint, true, Graph.DataX[PrimaryMarkedPointIndex], Graph.DataY[PrimaryMarkedPointIndex]);
+
+                    PriceInput.Text = Graph.DataY[PrimaryMarkedPointIndex].ToString();
+
+                    EnableActionButtons();
+                    OechslePricePlot.Render();
+                    return;
+                }
+            }
+
+            PrimaryMarkedPointIndex = -1;
+            ChangeMarker(PrimaryMarkedPoint, false);
+            DisableActionButtons();
+            PriceInput.Text = "";
+            OechslePricePlot.Render();
+        }
+
+        private void PriceInput_TextChanged(object sender, RoutedEventArgs evt) {
+            if (PrimaryMarkedPointIndex != -1) {
+                bool success = Double.TryParse(PriceInput.Text, out double price);
+
+                if (success) {
+                    Graph.DataY[PrimaryMarkedPointIndex] = price;
+                    PrimaryMarkedPoint.Y = price;
+                    SaveButton.IsEnabled = true;
+                    ResetButton.IsEnabled = true;
+                    OechslePricePlot.Refresh();
+                }
+            }
+        }
+
+        private void LeftFlatButton_Click(object sender, RoutedEventArgs evt) {
+            if (PrimaryMarkedPointIndex == -1) {
+                return;
+            }
+            FlattenGraph(0, PrimaryMarkedPointIndex, Graph.DataY[PrimaryMarkedPointIndex]);
+        }
+
+        private void RightFlatButton_Click(object sender, RoutedEventArgs evt) {
+            if (PrimaryMarkedPointIndex == -1) {
+                return;
+            }
+            FlattenGraph(PrimaryMarkedPointIndex, Graph.DataY.Length - 1, Graph.DataY[PrimaryMarkedPointIndex]);
+        }
+
+        private void InterpolateButton_Click(object sender, RoutedEventArgs evt) {
+            int steps = Math.Abs(PrimaryMarkedPointIndex - SecondaryMarkedPointIndex);
+            if (PrimaryMarkedPointIndex == -1 || SecondaryMarkedPointIndex == -1 || steps < 2) {
+                return;
+            }
+            var (lowIndex, highIndex) = PrimaryMarkedPointIndex < SecondaryMarkedPointIndex ? (PrimaryMarkedPointIndex, SecondaryMarkedPointIndex): (SecondaryMarkedPointIndex, PrimaryMarkedPointIndex);
+
+            double step = (Graph.DataY[highIndex] - Graph.DataY[lowIndex]) / steps;
+
+            for (int i = lowIndex; i < highIndex - 1; i++) {
+                Graph.DataY[i + 1] = Math.Round(Graph.DataY[i] + step, 4); // TODO richtig runden
+            }
+        }
+
+        private void LinearIncreaseButton_Click(object sender, RoutedEventArgs e) { 
+            if (PrimaryMarkedPointIndex == -1) {
+                return;
+            }
+            double? priceIncrease = Utils.ShowLinearPriceIncreaseDialog();
+            if (priceIncrease == null) {
+                return;
+            }
+            LinearIncreaseGraph(PrimaryMarkedPointIndex, Graph.DataY.Length - 1, priceIncrease.Value);
+        }
+
+        private void OechslePricePlot_MouseDown(object sender, MouseEventArgs e) {
+            if (!IsCreating && GraphList.SelectedItem == null) {
+                return;
+            }
+
+            if (HoverActive) {
+                if ((IsEditing || IsCreating) && Keyboard.IsKeyDown(Key.LeftCtrl)) {
+                    if (PrimaryMarkedPointIndex == -1) {
+                        return;
+                    }
+                    SecondaryMarkedPointIndex = HighlightedIndex;
+                    ChangeMarker(SecondaryMarkedPoint, true, Graph.DataX[SecondaryMarkedPointIndex], Graph.DataY[SecondaryMarkedPointIndex]);
+
+                    InterpolateButton.IsEnabled = true;
+
+                    return;
+                }
+
+                PrimaryMarkedPointIndex = HighlightedIndex;
+                ChangeMarker(PrimaryMarkedPoint, true, Graph.DataX[PrimaryMarkedPointIndex], Graph.DataY[PrimaryMarkedPointIndex]);
+
+                OechsleInput.Text = Graph.DataX[HighlightedIndex].ToString();
+                PriceInput.Text = Graph.DataY[HighlightedIndex].ToString();
+
+                if (IsEditing || IsCreating) {
+                    EnableActionButtons();
+                }
+            } else {
+                PrimaryMarkedPointIndex = -1;
+                SecondaryMarkedPointIndex = -1;
+                ChangeMarker(PrimaryMarkedPoint, false);
+                ChangeMarker(SecondaryMarkedPoint, false);
+
+                OechsleInput.Text = "";
+                PriceInput.Text = "";
+
+                DisableActionButtons();
+            }
+        }
+
+        private void OechslePricePlot_MouseMove(object sender, MouseEventArgs e) {
+            if (!IsCreating && GraphList.SelectedItem == null) {
+                return;
+            }
+
+            (double mouseCoordX, double mouseCoordY) = OechslePricePlot.GetMouseCoordinates();
+            double xyRatio = OechslePricePlot.Plot.XAxis.Dims.PxPerUnit / OechslePricePlot.Plot.YAxis.Dims.PxPerUnit;
+            (double pointX, double pointY, int pointIndex) = OechslePricePlotScatter.GetPointNearest(mouseCoordX, mouseCoordY, xyRatio);
+
+            (double mousePixelX, double mousePixelY) = OechslePricePlot.GetMousePixel();
+            (double pointPixelX, double pointPixelY) = OechslePricePlot.Plot.GetPixel(pointX, pointY);
+
+            HighlightedIndex = LastHighlightedIndex;
+
+            if (Math.Abs(mousePixelX - pointPixelX) < 3 && Math.Abs(mousePixelY - pointPixelY) < 3) {
+                ChangeMarker(HighlightedPoint, true, pointX, pointY);
+                HighlightedPoint.IsVisible = true;
+                HoverChanged = true ^ HoverActive;
+                HoverActive = true;
+            } else {
+                ChangeMarker(HighlightedPoint, false);
+                HoverChanged= false ^ HoverActive;
+                HoverActive= false;
+                OechslePricePlot.Plot.Remove(Tooltip);
+                OechslePricePlot.Render();
+            }
+
+            if (LastHighlightedIndex != HighlightedIndex || HoverChanged) {
+                OechslePricePlot.Plot.Remove(Tooltip);
+                if (TooltipInput.IsChecked == true) {
+                    Tooltip = OechslePricePlot.Plot.AddTooltip($"Oechsle: {pointX:N2}, Preis: {Math.Round(pointY, 4)})", pointX, pointY);
+                }
+                LastHighlightedIndex = pointIndex;
+                HoverChanged = false;
+                OechslePricePlot.Render();
+            }
+        }
+
+        override protected void UpdateButtons() {
+            if (!IsEditing && !IsCreating) return;
+            bool ch = HasChanged, v = IsValid;
+        }
+
+        private void DisableNewEditDeleteButtons() {
+            NewButton.IsEnabled = false;
+            EditButton.IsEnabled = false;
+            DeleteButton.IsEnabled = false;
+        }
+
+        private void EnableNewEditDeleteButtons() {
+            NewButton.IsEnabled = true;
+            EditButton.IsEnabled = GraphList.SelectedItem != null;
+            DeleteButton.IsEnabled = GraphList.SelectedItem != null;
+        }
+
+        private void ShowSaveResetCancelButtons() {
+            SaveButton.IsEnabled = false;
+            ResetButton.IsEnabled = false;
+            CancelButton.IsEnabled = true;
+            SaveButton.Visibility = Visibility.Visible;
+            ResetButton.Visibility = Visibility.Visible;
+            CancelButton.Visibility = Visibility.Visible;
+        }
+
+        private void HideSaveResetCancelButtons() {
+            SaveButton.IsEnabled = false;
+            ResetButton.IsEnabled = false;
+            CancelButton.IsEnabled = false;
+            SaveButton.Visibility = Visibility.Hidden;
+            ResetButton.Visibility = Visibility.Hidden;
+            CancelButton.Visibility = Visibility.Hidden;
+        }
+        private void ShowNewEditDeleteButtons() {
+            EnableNewEditDeleteButtons();
+            NewButton.Visibility = Visibility.Visible;
+            EditButton.Visibility = Visibility.Visible;
+            DeleteButton.Visibility = Visibility.Visible;
+        }
+
+        private void HideNewEditDeleteButtons() {
+            DisableNewEditDeleteButtons();
+            NewButton.Visibility = Visibility.Hidden;
+            EditButton.Visibility = Visibility.Hidden;
+            DeleteButton.Visibility = Visibility.Hidden;
+        }
+
+        private void NewButton_Click(object sender, RoutedEventArgs e) {
+            IsCreating = true;
+            GraphList.IsEnabled = false;
+            GraphList.SelectedItem = null;
+            HideNewEditDeleteButtons();
+            ShowSaveResetCancelButtons();
+            UnlockInputs();
+            PriceInput.IsReadOnly = false;
+            OechsleInput.IsReadOnly = false;
+            InitInputs();
+            FillInputs(new Graph(GraphList.Items.Count + 1, MinOechsle, MaxOechsle));
+            EnableOptionButtons();
+        }
+
+        private void EditButton_Click(object sender, RoutedEventArgs e) {
+            if (GraphList.SelectedItem == null) {
+                return;
+            }
+
+            IsEditing = true;
+            GraphList.IsEnabled = false;
+
+            HideNewEditDeleteButtons();
+            ShowSaveResetCancelButtons();
+            UnlockInputs();
+            PriceInput.IsReadOnly = false;
+            OechsleInput.IsReadOnly = false;
+            if (PrimaryMarkedPointIndex != -1) EnableActionButtons();
+        }
+
+        private async void DeleteButton_Click(object sender, RoutedEventArgs e) {
+            Graph g = (Graph)GraphList.SelectedItem;
+            if (g == null) return;
+
+            var r = MessageBox.Show(
+                $"Soll der Graph {g.Num} (verwendet in folgenden Verträgen: {g.Contracts}) wirklich unwiderruflich gelöscht werden?",
+                "Graph löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
+            if (r == MessageBoxResult.Yes) {
+                bool success = await RemoveGraph(g.Num);
+                if (!success) {
+                    MessageBox.Show("Der Graph konnte nicht gelöscht werden", "Graph löschen", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+                await RefreshGraphList();
+            }
+        }
+
+
+        private async void SaveButton_Click(object sender, RoutedEventArgs e) {
+            int? index = await UpdateGraph(Graph);
+            if (index == null) {
+                MessageBox.Show("Der Graph konnte nicht gespeichert werden", "Graph speichern", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+            IsEditing = false;
+            IsCreating = false;
+            GraphList.IsEnabled = true;
+            HideSaveResetCancelButtons();
+            ShowNewEditDeleteButtons();
+            LockInputs();
+            PriceInput.IsReadOnly = true;
+            OechsleInput.IsReadOnly = true;
+            await RefreshGraphList();
+            GraphList.SelectedIndex = index.Value;
+        }
+
+        private async Task<int?> UpdateGraph(Graph g) {
+            List<PaymentVar> paymentVars = await Context.PaymentVariants.Where(p => p.Year == Year && p.AvNr == AvNr).ToListAsync();
+
+            if (paymentVars.Count != 1) {
+                return null;
+            }
+
+            PaymentVar paymentVar = paymentVars[0];
+            var data = JToken.Parse(paymentVar.Data);
+
+            var auszahlungsSorten = data["AuszahlungSorten"];
+            if (auszahlungsSorten == null) {
+                return null;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"];
+
+            if (Graphs == null) {
+                return null;
+            }
+
+            if (IsEditing) {
+                ((JArray)Graphs)[g.Num - 1] = g.ToJson();
+            } else if(IsCreating) {
+                ((JArray)Graphs).Add(g.ToJson());
+            } else {
+                return null;
+            }
+
+            EntityEntry<PaymentVar>? tr = null;
+            try {
+                paymentVar.Data = data.ToString();
+                tr = Context.Update(paymentVar);
+
+                await Context.SaveChangesAsync();
+            } catch (Exception exc) {
+                if (tr != null) await tr.ReloadAsync();
+                var str = "Der Eintrag konnte nicht in der Datenbank gelöscht werden!\n\n" + exc.Message;
+                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
+                MessageBox.Show(str, "Graph löschen", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+
+            return g.Num - 1;
+        }
+
+        private void ResetButton_Click(object sender, RoutedEventArgs e) {
+            if (IsEditing) {
+                RefreshInputs();
+            } else if (IsCreating) {
+                InitInputs();
+            }
+            UpdateButtons();
+        }
+
+        private void CancelButton_Click(object sender, RoutedEventArgs e) {
+            IsEditing = false;
+            IsCreating = false;
+            GraphList.IsEnabled = true;
+            HideSaveResetCancelButtons();
+            ShowNewEditDeleteButtons();
+            DisableActionButtons();
+            RefreshInputs();
+            PriceInput.Text = "";
+            OechsleInput.Text = "";
+            ClearInputStates();
+            LockInputs();
+            PriceInput.IsReadOnly = true;
+            OechsleInput.IsReadOnly = true;
+        }
+
+        private void GraphList_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e) {
+            RefreshInputs();
+
+            //var x = OechslePricePlot.Plot.GetPlottables().OfType<ScatterPlot>();
+            //MessageBox.Show($"SelectionChanged\nLength: {x.ToList().Count}, Ys: {string.Join(", ", ((ScatterPlot)x.First()).Ys)}");
+        }
+
+        private void PriceInput_LostFocus(object sender, RoutedEventArgs e) {
+
+        }
+
+        private void OechsleInput_LostFocus(object sender, RoutedEventArgs e) {
+
+        }
+
+        private void GraphNumberInput_TextChanged(object sender, TextChangedEventArgs e) {
+
+        }
+
+        private void GraphNumberInput_LostFocus(object sender, RoutedEventArgs e) {
+
+        }
+    }
+}

Elwig/Windows/ContextWindow.cs

@@ -1,23 +1,43 @@
-using Elwig.Helpers;
+using Elwig.Helpers;
 using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Threading;
 
 namespace Elwig.Windows {
     public abstract class ContextWindow : Window {
-        protected readonly AppDbContext Context;
+
+        protected AppDbContext Context { get; private set; }
+        protected bool LockContext { get; set; } = false;
+
+        private readonly DispatcherTimer ContextRenewTimer;
+        private static readonly int ContextRenewSec = 10;
 
         public ContextWindow() : base() {
+            ContextRenewTimer = new DispatcherTimer();
+            ContextRenewTimer.Tick += new EventHandler(OnRenewContext);
+            ContextRenewTimer.Interval = new TimeSpan(0, 0, ContextRenewSec);
+            ContextRenewTimer.Start();
             Context = new();
+            Loaded += OnLoaded;
         }
 
-        protected override void OnClosing(CancelEventArgs evt) {
+        private void OnRenewContext(object? sender, EventArgs evt) {
+            if (LockContext || !Context.HasBackendChanged) return;
             Context.Dispose();
-            base.OnClosing(evt);
+            Context = new();
+            RenewContext().GetAwaiter().GetResult();
         }
+
+        private void OnLoaded(object sender, RoutedEventArgs evt) {
+            RenewContext().GetAwaiter().GetResult();
+        }
+
+        protected override void OnClosed(EventArgs evt) {
+            base.OnClosed(evt);
+            Context.Dispose();
+        }
+
+        abstract protected Task RenewContext();
     }
 }

Elwig/Windows/DeliveryAdminWindow.xaml

@@ -0,0 +1,427 @@
+<local:AdministrationWindow x:Class="Elwig.Windows.DeliveryAdminWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Elwig.Windows"
+        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
+        Title="Lieferungsverwaltung - Elwig" Height="720" Width="1100" MinHeight="700" MinWidth="1000"
+        Loaded="Window_Loaded">
+    <Window.Resources>
+        <Style TargetType="Label">
+            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="Padding" Value="2,4,2,4"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+        <Style TargetType="TextBox">
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="2"/>
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="TextWrapping" Value="NoWrap"/>
+        </Style>
+        <Style TargetType="ComboBox">
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="xctk:CheckComboBox">
+            <Setter Property="Height" Value="25"/>
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="HorizontalAlignment" Value="Stretch"/>
+            <Setter Property="VerticalAlignment" Value="Top"/>
+        </Style>
+        <Style TargetType="Button">
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="9,3"/>
+            <Setter Property="Height" Value="27"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="19"/>
+            <RowDefinition Height="0.625*"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="24"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="1*" MinWidth="400"/>
+            <ColumnDefinition Width="1*"/>
+            <ColumnDefinition Width="1*"/>
+        </Grid.ColumnDefinitions>
+
+        <Menu Grid.ColumnSpan="3" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
+            <MenuItem Header="Lieferung">
+            </MenuItem>
+            <MenuItem Header="Drucken">
+                <MenuItem x:Name="Menu_Print_ShowDeliveryNote" Header="Lieferschein anzeigen" IsEnabled="False"
+                          Click="Menu_Print_ShowDeliveryNote_Click"/>
+                <MenuItem x:Name="Menu_Print_PrintDeliveryNote" Header="Lieferschein drucken" IsEnabled="False"
+                          Click="Menu_Print_PrintDeliveryNote_Click"/>
+            </MenuItem>
+            <MenuItem Header="Exportieren">
+                <MenuItem x:Name="Menu_Export_Bki" Header="Traubentransportscheinliste (BKI)"
+                          Click="Menu_Export_Bki_Click"/>
+            </MenuItem>
+            <MenuItem Header="Werkzeuge">
+                <MenuItem Header="Alle Lieferscheine überprüfen"/>
+            </MenuItem>
+        </Menu>
+
+        <Grid Grid.RowSpan="4" Grid.Row="1" Margin="5,0,5,0">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="42"/>
+                <RowDefinition Height="*"/>
+                <RowDefinition Height="42"/>
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+
+            <TextBox x:Name="SearchInput" Grid.ColumnSpan="3" Margin="5,10,161,0" IsReadOnly="False"
+                     TextChanged="SearchInput_TextChanged"/>
+            <xctk:IntegerUpDown Name="SeasonInput" Grid.ColumnSpan="3" Height="25" Width="56" FontSize="14" Minimum="1000" Maximum="9999"
+                                Margin="0,10,100,0" VerticalAlignment="Top" HorizontalAlignment="Right"
+                                ValueChanged="SeasonInput_ValueChanged"/>
+            <CheckBox x:Name="TodayOnlyInput" Content="Nur heute"
+                      HorizontalAlignment="Right" Margin="0,7,18,0" VerticalAlignment="Top" Grid.Column="1" Grid.ColumnSpan="2"
+                      Checked="TodayOnlyInput_Changed" Unchecked="TodayOnlyInput_Changed"/>
+            <CheckBox x:Name="AllSeasonsInput" Content="Jede Saison" IsEnabled="False"
+                      HorizontalAlignment="Right" Margin="0,24,10,0" VerticalAlignment="Top" Grid.Column="1" Grid.ColumnSpan="2"
+                      Checked="AllSeasonsInput_Changed" Unchecked="AllSeasonsInput_Changed"/>
+            <DataGrid x:Name="DeliveryList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
+                      SelectionChanged="DeliveryList_SelectionChanged"
+                      CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False"
+                      Margin="5,0,5,0" Grid.Row="1" FontSize="14" Grid.ColumnSpan="3">
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="MgNr."   Binding="{Binding MgNr}" Width="70"/>
+                    <DataGridTextColumn Header="Datum"   Binding="{Binding Date, StringFormat='dd.MM.yy'}" Width="70"/>
+                    <DataGridTextColumn Header="Zeit"    Binding="{Binding Time, StringFormat='HH:mm'}" Width="70"/>
+                    <DataGridTextColumn Header="Sorte"   Binding="{Binding SortIdString}" Width="60"/>
+                    <DataGridTextColumn Header="Gewicht" Binding="{Binding Weight, StringFormat='{}{0:N0} kg'}"  Width="70">
+                        <DataGridTextColumn.CellStyle>
+                            <Style>
+                                <Setter Property="TextBlock.TextAlignment" Value="Right"/>
+                            </Style>
+                        </DataGridTextColumn.CellStyle>
+                    </DataGridTextColumn>
+                </DataGrid.Columns>
+            </DataGrid>
+
+            <Button x:Name="FinishButton" Content="Abschließen" IsEnabled="False" Visibility="Hidden"
+                    ToolTip="Übernahme abschließen und Lieferschein drucken"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="FinishButton_Click"/>
+            <Button x:Name="NewDeliveryPartButton" Content="Neue Teil-Lfrg." IsEnabled="False" Visibility="Hidden"
+                    ToolTip="Neue Teillieferung auf selben Lieferschein hinzufügen"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
+                    Click="NewDeliveryPartButton_Click"/>
+            <Button x:Name="CancelCreatingButton" Content="Abbrechen" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
+                    Click="CancelCreatingButton_Click"/>
+
+            <Button x:Name="NewDeliveryButton" Content="Neu" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="NewDeliveryButton_Click"/>
+            <Button x:Name="AbwertenButton" Content="Abwerten" IsEnabled="False" 
+                    ToolTip="Ausgewählte Teillieferung vollständig oder teilweise abwerten"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="AbwertenButton_Click"/>
+            <Button x:Name="EditDeliveryButton" Content="Bearbeiten" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
+                    Click="EditDeliveryButton_Click"/>
+            <Button x:Name="DeleteDeliveryButton" Content="Löschen" IsEnabled="False"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
+                    Click="DeleteDeliveryButton_Click"/>
+
+            <Button x:Name="SaveButton" Content="Speichern" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
+                    Click="SaveButton_Click"/>
+            <Button x:Name="ResetButton" Content="Zurücksetzen" IsEnabled="False" Visibility="Hidden"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
+                    Click="ResetButton_Click"/>
+            <Button x:Name="CancelButton" Content="Abbrechen" IsEnabled="False" Visibility="Hidden" IsCancel="True"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
+                    Click="CancelButton_Click"/>
+        </Grid>
+
+        <GroupBox Header="Mitglied" Grid.Column="1" Grid.Row="1" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="70"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="Mitglied:" Margin="10,10,0,0" Grid.Column="0"/>
+                <TextBox x:Name="MgNrInput" Width="48" Grid.Row="1" Grid.Column="1" Margin="0,10,0,0" HorizontalAlignment="Left" TextAlignment="Right"
+                         TextChanged="MgNrInput_TextChanged" LostFocus="MgNrInput_LostFocus"/>
+                <ComboBox x:Name="MemberInput" Grid.Column="1" Margin="53,10,10,10" IsEditable="True"
+                          ItemTemplate="{StaticResource MemberAdminNameTemplate}" TextSearch.TextPath="AdministrativeName"
+                          SelectionChanged="MemberInput_SelectionChanged"/>
+
+                <Label Content="Wohnort:" Margin="10,38,0,0" Grid.Column="0"/>
+                <TextBox x:Name="MemberAddressField" Grid.Column="1" Margin="0,40,10,10" FontSize="12" Height="22"
+                         IsReadOnly="True" IsTabStop="False"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Lieferung" Grid.Column="1" Grid.Row="2" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="100"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="LieferscheinNr.:" Margin="10,10,0,0" Grid.Column="0"/>
+                <TextBox x:Name="LsNrInput" Width="126" Grid.Column="1" HorizontalAlignment="Left" Margin="0,10,0,0"
+                         IsReadOnly="True" IsTabStop="False"/>
+
+                <Label Content="Datum/Uhrzeit:" Margin="10,40,0,0" Grid.Column="0"/>
+                <TextBox x:Name="DateInput" Width="77" Grid.Column="1" HorizontalAlignment="Left" Margin="0,40,0,0"
+                         IsReadOnly="True" IsTabStop="False"
+                         TextChanged="DateInput_TextChanged"/>
+                <TextBox x:Name="TimeInput" Width="44" Grid.Column="1" HorizontalAlignment="Left" Margin="82,40,0,0"
+                         IsReadOnly="True" IsTabStop="False"/>
+
+                <Label Content="Zweigstelle:" Margin="10,70,0,0" Grid.Column="0"/>
+                <ComboBox x:Name="BranchInput" Width="126" Margin="0,70,10,0" Grid.Column="1" HorizontalAlignment="Left"
+                          IsEnabled="False"
+                          DisplayMemberPath="Name" TextSearch.TextPath="Name"/>
+
+                <Label Content="Anmerkung:" Margin="10,100,0,10"/>
+                <TextBox x:Name="CommentInput" Grid.Column="1" Margin="0,100,10,10"
+                         TextChanged="TextBox_TextChanged"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Sorte" Grid.Column="2" Grid.Row="1" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="70"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="Sorte:" Margin="10,10,0,0" Grid.Column="0"/>
+                <TextBox x:Name="SortIdInput" Width="36" Grid.Row="1" Grid.Column="1" Margin="0,10,0,0" HorizontalAlignment="Left"
+                         TextChanged="SortIdInput_TextChanged" LostFocus="SortIdInput_LostFocus"/>
+                <ComboBox x:Name="WineVarietyInput" Grid.Row="1" Grid.Column="1" Margin="41,10,10,10"
+                          ItemTemplate="{StaticResource WineVarietyTemplate}" TextSearch.TextPath="Name" 
+                          SelectionChanged="WineVarietyInput_SelectionChanged"/>
+
+                <Label Content="Attribute:" Margin="10,40,0,0" Grid.Column="0"/>
+                <xctk:CheckComboBox x:Name="AttributesInput" Grid.Row="1" Grid.Column="1" Margin="0,40,10,10"
+                                    DisplayMemberPath="Name" Delimiter=", " AllItemsSelectedContent="Alle"
+                                    ItemSelectionChanged="AttributesInput_SelectionChanged"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Gradation" Grid.Column="2" Grid.Row="2" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="100"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+                <Label Content="Gradation:" Margin="10,10,10,10"/>
+                <Grid Grid.Column="1" Width="54" Height="25" Margin="0,10,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
+                    <TextBox x:Name="GradationOeInput"  TextAlignment="Right" Padding="2,2,23,2"
+                             TextChanged="GradationOeInput_TextChanged" LostFocus="GradationOeInput_LostFocus"/>
+                    <Label Content="°Oe" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10"/>
+                </Grid>
+                <Label Content="=" Margin="60,10,10,10" Grid.Column="1"/>
+                <Grid Grid.Column="1" Width="68" Height="25" Margin="78,10,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
+                    <TextBox x:Name="GradationKmwInput" TextAlignment="Right" Padding="2,2,34,2" SnapsToDevicePixels="True"
+                             TextChanged="GradationKmwInput_TextChanged" LostFocus="GradationKmwInput_LostFocus"/>
+                    <Label Content="°KMW" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10"/>
+                </Grid>
+
+                <Label Content="Qualitätsstufe:" Margin="10,40,10,10"/>
+                <ComboBox x:Name="WineQualityLevelInput" Width="146" Margin="0,40,10,10" Grid.Column="1" HorizontalAlignment="Left"
+                          ItemTemplate="{StaticResource WineQualityLevelTemplate}"
+                          SelectionChanged="WineQualityLevelInput_SelectionChanged"/>
+
+                <CheckBox x:Name="AbgewertetInput" Content="Abgewertet" IsEnabled="False"
+                          VerticalAlignment="Top" HorizontalAlignment="Left" Margin="0,75,10,10" Grid.Column="1"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Gewicht" Grid.Column="2" Grid.Row="3" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="70"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="Gewicht:" Margin="10,10,10,10"/>
+                <Grid Grid.Column="1" Width="70" Height="25" Margin="0,10,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
+                    <TextBox x:Name="WeightInput" TextAlignment="Right" Padding="2,2,17,2" IsReadOnly="True"
+                             TextChanged="WeightInput_TextChanged"/>
+                    <Label Content="kg" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10"/>
+                </Grid>
+
+                <CheckBox x:Name="ManualWeighingInput" Content="Handwiegung" IsEnabled="False"
+                          VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,45,10,10" Grid.Column="0" Grid.ColumnSpan="2"
+                          Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"/>
+
+                <CheckBox x:Name="GerebeltGewogenInput" Content="Gerebelt gewogen"
+                          VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,75,10,10" Grid.Column="0" Grid.ColumnSpan="2"
+                          Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"/>
+
+                <Button x:Name="WeighingManualButton" Content="Handwiegung" Width="120"
+                        Click="WeighingManualButton_Click"
+                        VerticalAlignment="Top" HorizontalAlignment="Right" Margin="10,10,10,10" Grid.Column="2"/>
+                <Button x:Name="WeighingAButton" Content="Wiegen A" Width="120"
+                        Click="WeighingButton_Click"
+                        VerticalAlignment="Top" HorizontalAlignment="Right" Margin="10,42,10,10" Grid.Column="2"/>
+                <Button x:Name="WeighingBButton" Content="Wiegen B" Width="120"
+                        Click="WeighingButton_Click"
+                        VerticalAlignment="Top" HorizontalAlignment="Right" Margin="10,74,10,10" Grid.Column="2"/>
+                <Button x:Name="WeighingCButton" Content="Wiegen C" Width="120"
+                        Click="WeighingButton_Click"
+                        VerticalAlignment="Top" HorizontalAlignment="Right" Margin="10,106,10,10" Grid.Column="2"/>
+                <Button x:Name="WeighingDButton" Content="Wiegen D" Width="120"
+                        Click="WeighingButton_Click"
+                        VerticalAlignment="Top" HorizontalAlignment="Right" Margin="10,138,10,10" Grid.Column="2"/>
+
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Sonstiges" Grid.Column="2" Grid.Row="4" Margin="5,5,5,10">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="100"/>
+                    <ColumnDefinition Width="65"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="Zu-/Abschläge:" Margin="10,10,0,10"/>
+                <xctk:CheckComboBox x:Name="ModifiersInput" Margin="0,10,10,10" Grid.Column="1" Grid.ColumnSpan="2"
+                                    ItemTemplate="{StaticResource ModifierTemplate}" Delimiter=", " AllItemsSelectedContent="Alle"
+                                    ItemSelectionChanged="ModifiersInput_SelectionChanged"/>
+
+                <Label Content="Anmerkung:" Margin="10,40,0,10"/>
+                <TextBox x:Name="PartCommentInput" Grid.Column="1" Margin="0,40,10,10" Grid.ColumnSpan="2"
+                         TextChanged="TextBox_TextChanged"/>
+
+                <Label Content="Temperatur:" Margin="10,70,0,10"/>
+                <Grid Grid.Column="1" Height="25" Margin="0,70,10,10" VerticalAlignment="Top">
+                    <TextBox x:Name="TemperatureInput" TextAlignment="Right" Padding="2,2,16,2"
+                             TextChanged="TemperatureAcidInput_TextChanged" LostFocus="TemperatureAcidInput_LostFocus"/>
+                    <Label Content="°C" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10"/>
+                </Grid>
+
+                <Label Content="Säure:" Margin="10,100,0,10"/>
+                <Grid Grid.Column="1" Height="25" Margin="0,100,10,10" VerticalAlignment="Top">
+                    <TextBox x:Name="AcidInput" TextAlignment="Right" Padding="2,2,19,2"
+                             TextChanged="TemperatureAcidInput_TextChanged" LostFocus="TemperatureAcidInput_LostFocus"/>
+                    <Label Content="g/l" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10"/>
+                </Grid>
+
+                <CheckBox x:Name="LesewagenInput" Content="Lesewagen" Margin="10,75,0,0" Grid.Column="2"
+                          VerticalAlignment="Top" HorizontalAlignment="Left"
+                          Checked="LesewagenInput_Changed" Unchecked="LesewagenInput_Changed"/>
+                <CheckBox x:Name="HandPickedInput" Content="Handlese" Margin="10,105,0,0" Grid.Column="2" IsThreeState="True"
+                          VerticalAlignment="Top" HorizontalAlignment="Left"
+                          Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Teillieferungen" Grid.Column="1" Grid.Row="3" Margin="5,5,5,5">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+                <ListBox x:Name="DeliveryPartList" Margin="5,5,5,38" Grid.ColumnSpan="2"
+                         SelectionChanged="DeliveryPartList_SelectionChanged">
+                    <ListBox.ItemTemplate>
+                        <DataTemplate>
+                            <StackPanel Orientation="Horizontal">
+                                <TextBlock Text="{Binding DPNr}" Width="20"/>
+                                <TextBlock Text="{Binding SortId}" Width="30"/>
+                                <TextBlock Text="{Binding Kmw, StringFormat='{}{0:0.0}°'}" Width="40" TextAlignment="Right" Padding="0,0,10,0"/>
+                                <TextBlock Text="{Binding QualId}" Width="30"/>
+                                <TextBlock Text="{Binding Weight, StringFormat='{}{0:N0} kg'}" Width="60" TextAlignment="Right"/>
+                            </StackPanel>
+                        </DataTemplate>
+                    </ListBox.ItemTemplate>
+                </ListBox>
+
+                <Button x:Name="ExtractDeliveryPartButton" Content="Extrahieren" IsEnabled="False"
+                        ToolTip="Ausgewählte Teillieferung aus aktueller Lieferung entfernen und entweder anderer oder neuer Lieferung zuordnen"
+                        HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,10,2.5,5" Grid.Column="0" Grid.Row="2"
+                        Click="ExtractDeliveryPartButton_Click"/>
+                <Button x:Name="DeleteDeliveryPartButton" Content="Löschen" IsEnabled="False"
+                        HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,10,5,5" Grid.Column="1" Grid.Row="2"
+                        Click="DeleteDeliveryPartButton_Click"/>
+            </Grid>
+        </GroupBox>
+
+        <GroupBox Header="Herkunft" Grid.Column="1" Grid.Row="4" Margin="5,5,5,10">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="100"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+
+                <Label Content="Weinbaugebiet:" Margin="10,10,0,10" Grid.Column="0"/>
+                <ComboBox x:Name="WineOriginInput" Margin="0,10,10,10" Grid.Column="1"
+                          ItemTemplate="{StaticResource WineOriginTemplate}"/>
+
+                <Label Content="Weinbau-KG:" Margin="10,40,0,10" Grid.Column="0"/>
+                <ComboBox x:Name="WineKgInput" Margin="0,40,10,10" Grid.Column="1"
+                          DisplayMemberPath="Name"
+                          SelectionChanged="WineKgInput_SelectionChanged"/>
+
+                <Label Content="Ried:" Margin="10,70,0,10" Grid.Column="0"/>
+                <ComboBox x:Name="WineRdInput" Margin="0,70,10,10" Grid.Column="1"
+                          DisplayMemberPath="Name"/>
+            </Grid>
+        </GroupBox>
+
+        <StatusBar Grid.Row="5" Grid.ColumnSpan="3" BorderThickness="0,1,0,0" BorderBrush="Gray">
+            <StatusBar.ItemsPanel>
+                <ItemsPanelTemplate>
+                    <Grid>
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="2*"/>
+                            <ColumnDefinition Width="Auto"/>
+                            <ColumnDefinition Width="150"/>
+                            <ColumnDefinition Width="Auto"/>
+                            <ColumnDefinition Width="2*"/>
+                            <ColumnDefinition Width="Auto"/>
+                            <ColumnDefinition Width="3*"/>
+                            <ColumnDefinition Width="Auto"/>
+                            <ColumnDefinition Width="3*"/>
+                        </Grid.ColumnDefinitions>
+                    </Grid>
+                </ItemsPanelTemplate>
+            </StatusBar.ItemsPanel>
+            <StatusBarItem>
+                <TextBlock Name="StatusMembers" Text="Mitglieder: -"/>
+            </StatusBarItem>
+            <Separator Grid.Column="1"/>
+            <StatusBarItem Grid.Column="2">
+                <TextBlock Name="StatusDeliveries" Text="Lieferungen: -"/>
+            </StatusBarItem>
+            <Separator Grid.Column="3"/>
+            <StatusBarItem Grid.Column="4">
+                <TextBlock Name="StatusVarieties" Text="Sorten: -"/>
+            </StatusBarItem>
+            <Separator Grid.Column="5"/>
+            <StatusBarItem Grid.Column="6">
+                <TextBlock Name="StatusWeight" Text="Gewicht: -"/>
+            </StatusBarItem>
+            <Separator Grid.Column="7"/>
+            <StatusBarItem Grid.Column="8">
+                <TextBlock Name="StatusGradation" Text="Gradation: -"/>
+            </StatusBarItem>
+        </StatusBar>
+    </Grid>
+</local:AdministrationWindow>

Elwig/Windows/DeliveryReceptionWindow.xaml

@@ -1,12 +0,0 @@
-<Window x:Class="Elwig.Windows.DeliveryReceptionWindow"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:Elwig.Windows"
-        mc:Ignorable="d"
-        Title="Übernahme" Height="450" Width="800">
-    <Grid>
-        
-    </Grid>
-</Window>

Elwig/Windows/DeliveryReceptionWindow.xaml.cs

@@ -1,9 +0,0 @@
-using System.Windows;
-
-namespace Elwig.Windows {
-    public partial class DeliveryReceptionWindow : Window {
-        public DeliveryReceptionWindow() {
-            InitializeComponent();
-        }
-    }
-}

Elwig/Windows/DocumentViewerWindow.xaml

@@ -1,4 +1,4 @@
-<Window x:Class="Elwig.Windows.DocumentViewerWindow"
+<Window x:Class="Elwig.Windows.DocumentViewerWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
@@ -7,7 +7,7 @@
         xmlns:local="clr-namespace:Elwig.Windows"
         mc:Ignorable="d"
         Closed="OnClosed"
-        Title="PDF Ansicht"
+        Title="PDF Ansicht - Elwig"
         MinHeight="600" MinWidth="420" Height="750" Width="525">
     <Grid>
         <wv2:WebView2 Name="WebView"/>

Elwig/Windows/DocumentViewerWindow.xaml.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Windows;
 using Elwig.Helpers;
 
@@ -6,11 +6,21 @@ namespace Elwig.Windows {
     public partial class DocumentViewerWindow : Window {
 
         private TempFile? PdfFile = null;
+        private string? PdfPath = null;
 
         public DocumentViewerWindow(string title, string path) {
             InitializeComponent();
-            Title = Title + " - " + title;
-            WebView.Source = new($"file://{path}#view=FitH");
+            Title = $"{title} - {Title}";
+            PdfPath = path;
+            InitializeWebView();
+        }
+
+        public async void InitializeWebView() {
+            WebView.CreationProperties = new() {
+                UserDataFolder = App.TempPath,
+            };
+            await WebView.EnsureCoreWebView2Async();
+            WebView.Source = new($"file://{PdfPath}#view=FitH");
         }
 
         public DocumentViewerWindow(string title, TempFile file) : this(title, file.FilePath) {
@@ -22,6 +32,7 @@ namespace Elwig.Windows {
             WebView.Dispose();
             PdfFile?.Dispose();
             PdfFile = null;
+            PdfPath = null;
         }
     }
 }

Elwig/Windows/MainWindow.xaml

@@ -1,15 +1,63 @@
-<Window x:Class="Elwig.Windows.MainWindow"
+<Window x:Class="Elwig.Windows.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:Elwig.Windows"
-        mc:Ignorable="d"
-        Title="Elwig" Height="450" Width="800" ResizeMode="CanResize" SizeToContent="Manual"
+        Title="Elwig" MinHeight="400" MinWidth="325" Height="450" Width="800" ResizeMode="CanResize"
         Loaded="Window_Loaded">
+    <Window.Resources>
+        <Style TargetType="Button">
+            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Padding" Value="9,3"/>
+            <Setter Property="Height" Value="32"/>
+            <Setter Property="Width" Value="200"/>
+        </Style>
+    </Window.Resources>
     <Grid>
-        <Button x:Name="Button2" Content="Mitgliederverwaltung" Margin="472,182,178,0" VerticalAlignment="Top" Click="Button2_Click"/>
-        <Button x:Name="Button3" Content="Mitgliederliste" Margin="472,217,178,0" VerticalAlignment="Top" Click="Button3_Click"/>
-        <Button x:Name="Button4" Content="Generate" Margin="425,300,225,0" VerticalAlignment="Top" Click="Button4_Click" Tag="Print"/>
+        <Menu BorderThickness="0,0,0,1" VerticalAlignment="Top" Height="19" BorderBrush="LightGray" Background="White">
+            <MenuItem Header="Datenbank">
+                <MenuItem Header="Backup erstellen"/>
+            </MenuItem>
+            <MenuItem Header="Hilfe">
+                <MenuItem Header="Über"/>
+            </MenuItem>
+        </Menu>
+        <Grid Height="100" VerticalAlignment="Top" Margin="0,25,0,0">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="100"/>
+                <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            <Image Source="/elwig.png" RenderOptions.BitmapScalingMode="HighQuality" Grid.Column="0"
+                   HorizontalAlignment="Left" Margin="5,5,5,5" VerticalAlignment="Top"/>
+            <Label Grid.Column="1" Content="Elwig" FontSize="32"
+                   HorizontalAlignment="Left" Margin="0,10,0,0" VerticalAlignment="Top"/>
+            <Label Grid.Column="1" Content="Elektonische Winzer-"
+                   HorizontalAlignment="Left" Margin="0,55,0,0" VerticalAlignment="Top"/>
+            <Label Grid.Column="1" Content="genossenschaftsverwaltung"
+                   HorizontalAlignment="Left" Margin="0,70,0,0" VerticalAlignment="Top"/>
+        </Grid>
+
+        <Button x:Name="MemberAdminButton" Content="Mitgliederverwaltung" Click="MemberAdminButton_Click"
+                Margin="50,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="MemberListButton" Content="Mitgliederliste" Click="MemberListButton_Click"
+                Margin="50,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="ReceiptButton" Content="Übernahme" Click="ReceiptButton_Click"
+                Margin="50,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="DeliveryAdminButton" Content="Lieferungsverwaltung" Click="DeliveryAdminButton_Click"
+                Margin="50,280,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="DeliveryListButton" Content="Lieferungungen" Click="DeliveryListButton_Click" IsEnabled="False"
+                Margin="50,320,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+
+        <Button x:Name="BaseDataButton" Content="Stammdaten" Click="BaseDataButton_Click"
+                Margin="260,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="PdfButton" Content="PDF Erzeugen" Click="PdfButton_Click" Tag="Print"
+                Margin="260,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="TestWindowButton" Content="Test Fenster" Click="TestWindowButton_Click"
+                Margin="260,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="QueryWindowButton" Content="Datenbankabfragen" Click="QueryWindowButton_Click"
+                Margin="260,280,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="PaymentWindowButton" Content="Auszahlung" Click="PaymentWindowButton_Click"
+                Margin="260,320,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
     </Grid>
 </Window>

Elwig/Windows/MainWindow.xaml.cs

@@ -1,48 +1,70 @@
-using Microsoft.EntityFrameworkCore;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
 using System.Linq;
-using System.Runtime.Intrinsics.X86;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows;
 using Elwig.Documents;
 using Elwig.Helpers;
 
 namespace Elwig.Windows {
     public partial class MainWindow : Window {
-        private readonly AppDbContext Context = new();
 
         public MainWindow() {
             InitializeComponent();
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs evt) {
-            Button4.IsEnabled = App.IsPrintingReady;
+            PdfButton.IsEnabled = App.IsPrintingReady;
         }
 
-        protected override void OnClosing(CancelEventArgs evt) {
-            Context.Dispose();
-            base.OnClosing(evt);
-        }
-
-        private void Button2_Click(object sender, RoutedEventArgs evt) {
+        private void MemberAdminButton_Click(object sender, RoutedEventArgs evt) {
             var w = new MemberAdminWindow();
             w.Show();
         }
 
-        private void Button3_Click(object sender, RoutedEventArgs evt) {
+        private void MemberListButton_Click(object sender, RoutedEventArgs evt) {
             var w = new MemberListWindow();
             w.Show();
         }
 
-        private void Button4_Click(object sender, RoutedEventArgs evt) {
+        private void ReceiptButton_Click(object sender, RoutedEventArgs evt) {
+            var w = new DeliveryAdminWindow(true);
+            w.Show();
+        }
+
+        private void DeliveryAdminButton_Click(object sender, RoutedEventArgs evt) {
+            var w = new DeliveryAdminWindow();
+            w.Show();
+        }
+
+        private void DeliveryListButton_Click(object sender, RoutedEventArgs evt) {
+            // TODO
+        }
+
+        private void PdfButton_Click(object sender, RoutedEventArgs evt) {
             Utils.RunBackground("PDF Generation", async () => {
-                using var letter = new BusinessLetter("Test Dokument", Context.Members.First());
-                await letter.Generate();
-                letter.Show();
+                using var ctx = new AppDbContext();
+                using var doc = new DeliveryNote(ctx.Deliveries.OrderBy(d => d.Parts.Count).ThenBy(d => d.Year).ThenBy(d => d.DId).Last(), ctx);
+                await doc.Generate();
+                doc.Show();
             });
         }
+
+        private void TestWindowButton_Click(object sender, RoutedEventArgs evt) {
+            var w = new TestWindow();
+            w.Show();
+        }
+
+        private void QueryWindowButton_Click(object sender, RoutedEventArgs evt) {
+            var w = new QueryWindow();
+            w.Show();
+        }
+
+        private void BaseDataButton_Click(object sender, RoutedEventArgs evt) {
+            var w = new BaseDataWindow();
+            w.Show();
+        }
+
+        private void PaymentWindowButton_Click(object sender, RoutedEventArgs e) {
+            var w = new ChartWindow();
+            w.Show();
+        }
     }
 }