Bump version to 0.3.2

Elwig.sln

@@ -4,22 +4,88 @@ 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("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Tests\Tests.csproj", "{30D7700A-7B0A-4E5D-B839-B4C1D95E307E}"
+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

@@ -2,32 +2,105 @@
              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

@@ -8,14 +8,41 @@ 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;
+using System.Reflection;
 
 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 IEnumerable<IScale> Scales { get; private set; }
+
+        public static int VersionMajor { get; private set; }
+        public static int VersionMinor { get; private set; }
+        public static int VersionPatch { get; private set; }
+        public static string Version {
+            get => $"{VersionMajor}.{VersionMinor}.{VersionPatch}";
+            private set {
+                var p = value.Split(".").Select(p => int.Parse(p.Trim())).ToArray();
+                VersionMajor = p.ElementAtOrDefault(0);
+                VersionMinor = p.ElementAtOrDefault(1);
+                VersionPatch = p.ElementAtOrDefault(2);
+            }
+        }
+
+        public static string ZwstId { get; private set; }
+        public static string BranchName { get; private set; }
+        public static int? BranchPlz { get; private set; }
+        public static string? BranchLocation { 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;
@@ -23,51 +50,105 @@ namespace Elwig {
 
         public App() : base() {
             System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
-            Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), "Elwig"));
+            Directory.CreateDirectory(TempPath);
             Directory.CreateDirectory(DataPath);
             MainDispatcher = Dispatcher;
             Scales = Array.Empty<IScale>();
         }
 
         protected override void OnStartup(StartupEventArgs evt) {
-            using (var ctx = new AppDbContext()) {
-                if (!ctx.Database.CanConnect()) {
-                    MessageBox.Show($"Invalid Database:\n\n{Config.DatabaseFile}", "Invalid Database", MessageBoxButton.OK, MessageBoxImage.Error);
+            var locale = new CultureInfo("de-AT");
+            locale.NumberFormat.CurrencyGroupSeparator = "\u202f";
+            locale.NumberFormat.NumberGroupSeparator = "\u202f";
+            locale.NumberFormat.PercentGroupSeparator = "\u202f";
+            Thread.CurrentThread.CurrentCulture = locale;
+            Thread.CurrentThread.CurrentUICulture = locale;
+            CultureInfo.DefaultThreadCurrentCulture = locale;
+            CultureInfo.DefaultThreadCurrentUICulture = locale;
+            FrameworkElement.LanguageProperty.OverrideMetadata(
+                typeof(FrameworkElement),
+                new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag))
+            );
+
+            Version = typeof(App).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? "";
+
+            try {
+                AppDbUpdater.CheckDb();
+            } catch (Exception e) {
+                MessageBox.Show($"Invalid Database:\n\n{e.Message}", "Invalid Database", MessageBoxButton.OK, MessageBoxImage.Error);
                 Shutdown();
+                return;
+            }
+
+            Dictionary<string, (string, string, int?, string?, string?, string?, string?, string?)> branches = new();
+            using (var ctx = new AppDbContext()) {
+                branches = ctx.Branches.ToDictionary(b => b.Name.ToLower(), b => (b.ZwstId, b.Name, b.PostalDest?.AtPlz?.Plz, b.PostalDest?.AtPlz?.Ort.Name, 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;
                 }
             }
+
             Utils.RunBackground("HTML Initialization", () => Documents.Html.Init(PrintingReadyChanged));
             Utils.RunBackground("PDF Initialization", () => Documents.Pdf.Init(PrintingReadyChanged));
 
-            Client = new();
-
-            var list = new LinkedList<IScale>();
+            var list = new List<IScale>();
             foreach (var s in Config.Scales) {
+                var id = s[0];
                 try {
-                    var scaleNr = int.Parse(s[0]);
-                    var type = s[1].ToLower();
+                    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.AddLast(new SystecScale(scaleNr, model, cnx, empty, filling, limit));
+                        list.Add(new SystecScale(id, model, cnx, empty, filling, limit, log));
                     } else {
                         throw new ArgumentException($"Invalid scale type: \"{type}\"");
                     }
                 } catch (Exception e) {
+                    list.Add(new InvalidScale(id));
                     MessageBox.Show($"Unable to create scale {s[0]}:\n\n{e.Message}", "Scale Error", MessageBoxButton.OK, MessageBoxImage.Error);
                 }
             }
             Scales = list;
 
-            base.OnStartup(evt);
+            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;
+                    BranchLocation = 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;
+                BranchLocation = 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();
             }
 
-        protected override void OnExit(ExitEventArgs evt) {
-            Utils.RunBackground("PDF Close", () => Documents.Pdf.Close());
-            base.OnExit(evt);
+            base.OnStartup(evt);
         }
 
         private void PrintingReadyChanged() {
@@ -76,7 +157,7 @@ namespace Elwig {
 
         protected void OnPrintingReadyChanged(EventArgs evt) {
             foreach (Window w in Windows) {
-                foreach (var b in Utils.FindAllChildren<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 +1,38 @@
+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(string? reason = null) {
+            InitializeComponent();
+            ReasonInput.Text = reason;
+        }
+
+        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;
+            Close();
+        }
+
+        private void UpdateButtons() {
+            ConfirmButton.IsEnabled = WeightInput.Text.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

@@ -2,7 +2,7 @@
 @inherits TemplatePage<Elwig.Documents.BusinessDocument>
 @model Elwig.Documents.BusinessDocument
 @{ Layout = "Document"; }
-
+<link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style-businessdocument.css" />
 <div class="info-wrapper">
     <div class="address-wrapper">
         <div class="sender">
@@ -13,8 +13,9 @@
         </div>
         <address>@Model.Address</address>
     </div>
-    <aside></aside>
+    <aside>@Raw(Model.Aside)</aside>
+    @if (Model.ShowDateAndLocation) {
+        <div class="date">@Model.Location, am @($"{Model.Date:dd.MM.yyyy}")</div>
+    }
 </div>
-<main>
-    @RenderBody()
-</main>
+@RenderBody()

Elwig/Documents/BusinessDocument.cshtml.cs

@@ -3,22 +3,36 @@ using Elwig.Models;
 namespace Elwig.Documents {
     public abstract class BusinessDocument : Document {
 
+        public bool ShowDateAndLocation = false;
+
         public Member Member;
         public bool IncludeSender = false;
+        public bool UseBillingAddress = false;
+        public string Aside;
+        public string? Location;
 
         public BusinessDocument(string title, Member m, bool includeSender = false) : base(title) {
             Member = m;
+            Location = App.BranchLocation;
             IncludeSender = includeSender;
+            var uid = (m.UstIdNr ?? "-") + (m.IsBuchführend ? "" : " <i>(pauschaliert)</i>");
+            Aside = $"<table><colgroup><col span='1' style='width: 22.5mm;'/><col span='1' style='width: 42.5mm;'/></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 {
                 var b = Member.BillingAddress;
-                var plz = (b == null) ? Member.PostalDest.AtPlz : b.PostalDest.AtPlz;
-                if (b != null) {
-                    return $"{b.Name}\n{b.Address}\n{plz.Plz} {plz.Dest}";
+                if (b != null && UseBillingAddress) {
+                    var plz = b.PostalDest.AtPlz;
+                    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}";
+                    var plz = Member.PostalDest.AtPlz;
+                    return $"{Member.AdministrativeName}\n{Member.Address}\n{plz.Plz} {plz.Dest}\nÖsterreich";
                 }
             }
         }

Elwig/Documents/BusinessLetter.cshtml

@@ -2,7 +2,8 @@
 @inherits TemplatePage<Elwig.Documents.BusinessLetter>
 @model Elwig.Documents.BusinessLetter
 @{ Layout = "BusinessDocument"; }
-
+<main>
 <p>Sehr geehrtes Mitglied,</p>
 <p>nein.</p>
 <p>Mit freundlichen Grüßen<br/>Ihre Winzergenossenschaft</p>
+</main>

Elwig/Documents/BusinessLetter.cshtml.cs

@@ -2,8 +2,6 @@ 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/CreditNote.cshtml

@@ -0,0 +1,85 @@
+@using RazorLight
+@inherits TemplatePage<Elwig.Documents.CreditNote>
+@model Elwig.Documents.CreditNote
+@{ Layout = "BusinessDocument"; }
+<link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style-creditnote.css"/>
+@{
+    var bucketNum = Model.BucketNames.Length;
+}
+<main>
+    <h1>@Model.Title</h1>
+    <table class="credit">
+        <colgroup>
+            <col style="width: 24mm;"/>
+            <col style="width: 6mm;"/>
+            <col style="width: 31mm;"/>
+            <col style="width: 15mm;"/>
+            <col style="width: 8mm;"/>
+            <col style="width: 10mm;"/>
+            <col style="width: 12mm;"/>
+            <col style="width: 10mm;"/>
+            <col style="width: 12mm;"/>
+            <col style="width: 15mm;"/>
+            <col style="width: 17mm;"/>
+        </colgroup>
+        <thead>
+            <tr>
+                <th rowspan="3" style="text-align: left;">Lieferschein-Nr.</th>
+                <th rowspan="3">Pos.</th>
+                <th rowspan="3" style="text-align: left;">Sorte</th>
+                <th rowspan="3" style="text-align: left;">Attribut(e)</th>
+                <th rowspan="2" colspan="2">Gradation</th>
+                <th colspan="2">Zu-/Abschläge</th>
+                <th colspan="2">@Raw(string.Join("<br/>", Model.BucketNames))</th>
+                <th rowspan="2">Betrag</th>
+            </tr>
+            <tr>
+                <th>Abs.</th>
+                <th>Rel.</th>
+                <th>Gewicht</th>
+                <th>Preis</th>
+            </tr>
+            <tr>
+                <th>[°Oe]</th>
+                <th>[°KMW]</th>
+                <th>[@Model.CurrencySymbol/kg]</th>
+                <th>[%]</th>
+                <th>[kg]</th>
+                <th>[@Model.CurrencySymbol/kg]</th>
+                <th>[@Model.CurrencySymbol]</th>
+            </tr>
+        </thead>
+        <tbody>
+            @{
+                string FormatRow(int? weight, decimal? amount) {
+                    var w = weight == null || weight == 0 ? "-" : $"{weight:N0}";
+                    return $"<td class='weight'>{w}</td><td class='amount'>{amount?.ToString("0." + string.Concat(Enumerable.Repeat('0', Model.Precision)))}</td>";
+                }
+                string? last = null;
+            }
+            @foreach (var part in Model.Parts) {
+                var pmt = part.Payment;
+                var abs = pmt?.ModAbs == null || pmt?.ModAbs == 0 ? "-" : pmt?.ModAbs.ToString("0." + string.Concat(Enumerable.Repeat('0', Model.Precision)));
+                var rel = pmt?.ModRel == null || pmt?.ModRel == 0 ? "-" : $"{pmt?.ModRel * 100:0.00##}";
+                <tr class="first @(bucketNum <= 1 ? "last" : "") @(last != null && last != part.SortId ? "new" : "")">
+                    <td rowspan="@bucketNum" class="lsnr">@part.Delivery.LsNr</td>
+                    <td rowspan="@bucketNum" class="dpnr">@part.DPNr</td>
+                    <td rowspan="@bucketNum" class="variant">@part.Variant.Name</td>
+                    <td rowspan="@bucketNum" class="attribute">@string.Join(" / ", part.PartAttributes.Select(a => a.AttrId))</td>
+                    <td rowspan="@bucketNum" class="oe">@($"{part.Oe:N0}")</td>
+                    <td rowspan="@bucketNum" class="kmw">@($"{part.Kmw:N1}")</td>
+                    <td rowspan="@bucketNum" class="abs">@abs</td>
+                    <td rowspan="@bucketNum" class="rel">@rel</td>
+                    @Raw(FormatRow(pmt?.Buckets?.ElementAtOrDefault(0), pmt?.Prices?.ElementAtOrDefault(0)))
+                    <td rowspan="@bucketNum" class="amount sum">@($"{pmt?.Amount:N2}")</td>
+                </tr>
+                @for (int i = 1; i < bucketNum; i++) {
+                    <tr class="@(i == bucketNum - 1 ? "last" : "")">
+                        @Raw(FormatRow(pmt?.Buckets?.ElementAtOrDefault(i), pmt?.Prices?.ElementAtOrDefault(i)))
+                    </tr>
+                }
+                last = part.SortId;
+            }
+        </tbody>
+    </table>
+</main>

Elwig/Documents/CreditNote.cshtml.cs

@@ -0,0 +1,40 @@
+using Elwig.Helpers;
+using Elwig.Models;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Elwig.Documents {
+    public class CreditNote : BusinessDocument {
+
+        public Credit Credit;
+        public string? Text;
+        public string CurrencySymbol;
+        public string[] BucketNames;
+        public int Precision;
+        public IEnumerable<DeliveryPart> Parts;
+
+        public CreditNote(Credit c, AppDbContext ctx) : base($"Traubengutschrift Nr. {c.TgId} – {c.Payment.Variant.Name}", c.Member) {
+            UseBillingAddress = true;
+            ShowDateAndLocation = true;
+            Credit = c;
+            Aside = Aside.Replace("</table>", "") +
+                $"<thead><tr><th colspan='2'>Gutschrift</th></tr></thead><tbody>" +
+                $"<tr><th>TG-Nr.</th><td>{c.TgId}</td></tr>" +
+                $"<tr><th>Überw. am</th><td>{c.Payment.Variant.TransferDate:dd.MM.yyyy}</td></tr>" +
+                $"<tr><th>Datum/Zeit</th><td>{c.ModifiedTimestamp:dd.MM.yyyy} / {c.ModifiedTimestamp:HH:mm}</td></tr>" +
+                $"</tbody></table>";
+            Text = App.Client.TextDeliveryNote;
+            DocumentId = $"Tr.-Gutschr. {c.TgId}";
+            CurrencySymbol = c.Payment.Variant.Season.Currency.Symbol ?? c.Payment.Variant.Season.Currency.Code;
+            BucketNames = c.Payment.Variant.BucketNames;
+            Precision = c.Payment.Variant.Season.Precision;
+            Parts = ctx.DeliveryParts.FromSql($"""
+                SELECT p.*
+                FROM v_delivery v
+                JOIN delivery_part p ON (p.year, p.did, p.dpnr) = (v.year, v.did, v.dpnr)
+                WHERE (v.year, v.mgnr) = ({c.Year}, {c.Member.MgNr})
+                ORDER BY sortid, LENGTH(attributes) DESC, attributes, kmw DESC, date, time, dpnr
+                """).ToList();
+        }
+    }}

Elwig/Documents/DeliveryJournal.cshtml

@@ -0,0 +1,67 @@
+@using RazorLight
+@inherits TemplatePage<Elwig.Documents.DeliveryJournal>
+@model Elwig.Documents.DeliveryJournal
+@{ Layout = "Document"; }
+<link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style-deliveryjournal.css"/>
+<main>
+    <h1>Lieferjournal</h1>
+    <h2>@Model.Filter</h2>
+    <table class="journal">
+        <colgroup>
+            <col style="width: 25mm;"/>
+            <col style="width: 5mm;"/>
+            <col style="width: 17mm;"/>
+            <col style="width: 10mm;"/>
+            <col style="width: 8mm;"/>
+            <col style="width: 38mm;"/>
+            <col style="width: 28mm;"/>
+            <col style="width: 10mm;"/>
+            <col style="width: 10mm;"/>
+            <col style="width: 14mm;"/>
+        </colgroup>
+        <thead>
+            <tr>
+                <th rowspan="2" style="text-align: left;">Lieferschein-Nr.</th>
+                <th rowspan="2">Pos.</th>
+                <th rowspan="2">Datum</th>
+                <th rowspan="2">Zeit</th>
+                <th colspan="2" rowspan="2" style="text-align: left;">Mitglied</th>
+                <th rowspan="2" style="text-align: left;">Sorte</th>
+                <th colspan="2">Gradation</th>
+                <th>Gewicht</th>
+            </tr>
+            <tr>
+                <th>[°Oe]</th>
+                <th>[°KMW]</th>
+                <th>[kg]</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach (var p in Model.Deliveries) {
+                <tr>
+                    <td>@p.Delivery.LsNr</td>
+                    <td>@p.DPNr</td>
+                    <td>@($"{p.Delivery.Date:dd.MM.yyyy}")</td>
+                    <td>@($"{p.Delivery.Time:HH:mm}")</td>
+                    <td class="mgnr">@p.Delivery.Member.MgNr</td>
+                    <td>@p.Delivery.Member.AdministrativeName</td>
+                    <td>@p.Variant.Name</td>
+                    <td class="grad">@($"{p.Oe:N0}")</td>
+                    <td class="grad">@($"{p.Kmw:N1}")</td>
+                    <td class="weight">@($"{p.Weight:N0}")</td>
+                </tr>
+            }
+            <tr class="sum">
+                @{
+                    var kmw = Elwig.Helpers.Utils.AggregateDeliveryPartsKmw(Model.Deliveries);
+                    var oe = Elwig.Helpers.Utils.KmwToOe(kmw);
+                }
+                <td colspan="2">Gesamt:</td>
+                <td colspan="5">(Teil-)Lieferungen: @($"{Model.Deliveries.DistinctBy(p => p.Delivery).Count():N0}") (@($"{Model.Deliveries.Count():N0}"))</td>
+                <td class="grad">@($"{oe:N0}")</td>
+                <td class="grad">@($"{kmw:N1}")</td>
+                <td class="weight">@($"{Model.Deliveries.Sum(p => p.Weight):N0}")</td>
+            </tr>
+        </tbody>
+    </table>
+</main>

Elwig/Documents/DeliveryJournal.cshtml.cs

@@ -0,0 +1,25 @@
+using Elwig.Helpers;
+using Elwig.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Elwig.Documents {
+    public class DeliveryJournal : Document {
+
+        public string Filter;
+        public IEnumerable<DeliveryPart> Deliveries;
+
+        public DeliveryJournal(string filter, IEnumerable<DeliveryPart> deliveries) : base($"Lieferjournal {filter}") {
+            Filter = filter;
+            Deliveries = deliveries;
+        }
+
+        public DeliveryJournal(AppDbContext ctx, DateOnly date) :
+            this(date.ToString("dd.MM.yyyy"), ctx.DeliveryParts
+                .Where(p => p.Delivery.DateString == date.ToString("yyy-MM-dd"))
+                .OrderBy(p => p.Delivery.LsNr)
+                .ThenBy(p => p.DPNr)
+                .ToList()) { }
+    }
+}

Elwig/Documents/DeliveryNote.cshtml

@@ -2,31 +2,178 @@
 @inherits TemplatePage<Elwig.Documents.DeliveryNote>
 @model Elwig.Documents.DeliveryNote
 @{ Layout = "BusinessDocument"; }
+<link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style-deliverynote.css" />
+<main>
+<h1>@Model.Title</h1>
+@{
+    bool displayStats = true;  // Model.Delivery.Year == Model.CurrentNextSeason
+}
+<script>
+    document.addEventListener("DOMContentLoaded", () => {
+        const hidden = document.getElementsByClassName("hidden")[0];
+        const table = document.getElementsByClassName("delivery")[0];
+        const stats = document.getElementById("delivery-stats");
+        const mm = px2mm(0, hidden.offsetTop + hidden.offsetHeight);
+        const heightTable = px2mm(table.offsetTop, hidden.offsetTop + hidden.offsetHeight);
 
-<h1>Traubenübernahmeschein Nr. @Model.Delivery.LsNr</h1>
-<table>
-<thead>
-<tr>
-    <th rowspan="2">Sorte</th>
-    <th rowspan="2">Qualitätsstufe</th>
+        if (mm >= heightA4 - heightFooter) {
+            if (heightTable + 10 >= heightMain) {
+                // force page break in table
+                const tblOff = px2mm(0, table.offsetTop);
+                let last = null;
+                for (const tr of table.getElementsByTagName("tr")) {
+                    if (!tr.classList.contains("main")) continue;
+                    const mm2 = tblOff + px2mm(0, tr.offsetTop);
+                    if (mm2 >= heightA4 - heightFooter) {
+                        last.classList.add("page-break");
+                        break;
+                    }
+                    last = tr;
+                }
+            } else {
+                // force page break
+                const hr = document.createElement("hr");
+                hr.classList.add("page-break");
+                table.before(hr);
+
+                const p = document.createElement("p");
+                p.innerText = "Siehe nächste Seite."
+                hr.before(p);
+            }
+        }
+    });
+</script>
+<table class="delivery">
+    <colgroup>
+        <col style="width: 10.00mm;"/>
+        <col style="width: 21.25mm;"/>
+        <col style="width: 21.25mm;"/>
+        <col style="width: 21.25mm;"/>
+        <col style="width: 21.25mm;"/>
+        <col style="width: 30.00mm;"/>
+        <col style="width: 12.50mm;"/>
+        <col style="width: 12.50mm;"/>
+        <col style="width: 15.00mm;"/>
+    </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>°KMW</th>
-    <th>°Oe</th>
-    <th>kg</th>
-</tr>
-</thead>
-<tbody>
-    @foreach (var part in Model.Delivery.Parts.OrderBy(p => p.DPNr)) {
+        </tr>
         <tr>
-            <td>@part.Variant.Name</td>
+            <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>@part.Kmw</td>
-            <td>@part.Oe</td>
-            <td>@part.Weight</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"))@Raw(part.WeighingReason != null ? $", <i>Begründung:</i>" : "") @part.WeighingReason
+            </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>
+    </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: 45mm;"/>
+                <col style="width: 20mm;"/>
+                <col style="width: 20mm;"/>
+                <col style="width: 20mm;"/>
+                <col style="width: 20mm;"/>
+                <col style="width: 20mm;"/>
+                <col style="width: 20mm;"/>
+            </colgroup>
+            <thead>
+                <tr>
+                    <th><b>Lese @Model.Delivery.Year</b> per @($"{Model.Date:dd.MM.yyyy}") [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();
+                    var buckets = Model.MemberBuckets.GroupBy(b => b.Item1[..2]).ToDictionary(g => g.Key, g => g.Count());
+                }
+                <tr>
+                    <th>Gesamtlieferung</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 || (sum > 0 && buckets[id[..2]] > 1 && !id.EndsWith('_'))) {
+                        <tr class="@(sortids.Contains(id[..2]) ? "" : "optional")">
+                            <th>@name</th>
+                            @Raw(FormatRow(obligation, right, sum))
+                        </tr>
+                    }
+                }
+            </tbody>
+        </table>
+    </div>
+}
+</main>
+@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

@@ -1,12 +1,27 @@
+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) : base($"Lieferschein {d.LsNr}", d.Member) {
+        public DeliveryNote(Delivery d, AppDbContext ctx) : base($"Traubenübernahmeschein Nr. {d.LsNr}", d.Member) {
+            UseBillingAddress = true;
+            ShowDateAndLocation = true;
             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

@@ -1,34 +1,40 @@
 @using RazorLight
 @inherits TemplatePage<Elwig.Documents.Document>
 @model Elwig.Documents.Document
-
 <!DOCTYPE html>
 <html lang="de-AT">
 <head>
     <title>@Model.Title</title>
+    <meta name="author" value="@Model.Author"/>
     <meta charset="UTF-8"/>
     <script>
-        window.PagedConfig = { auto: false };
-        if (!navigator.webdriver) {
-            window.addEventListener("beforeprint", async () => { await window.PagedPolyfill.preview(); });
-            window.addEventListener("afterprint", () => { location.reload(); });
+        const heightA4 = 297, widhtA4 = 210, heightFooter = 35, heightHeader = 25;
+        const heightMain = heightA4 - heightFooter - heightHeader;
+        function px2mm(px1, px2) {
+            return (px2 - px1 + 1) * 2.54 / 96 * window.devicePixelRatio * 10;
         }
     </script>
-    <script src="@Raw(Model.DataPath)\resources\paged.polyfill.js"></script>
-    <link rel="stylesheet" href="@Raw(Model.DataPath)\resources\style.css" />
+    <link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style.css"/>
+    <link rel="stylesheet" href="file:///@Raw(Model.DataPath)\resources\style-page.css"/>
 </head>
 <body>
+    @if (Model.ShowFoldMarks) {
         <div class="m1"></div>
         <div class="m2"></div>
         <div class="m3"></div>
-    <header>@Raw(Model.Header)</header>
+        <div class="m1 r"></div>
+        <div class="m2 r"></div>
+        <div class="m3 r"></div>
+    }
     <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

@@ -8,11 +8,30 @@ namespace Elwig.Documents {
 
         private TempFile? PdfFile = null;
 
+        public bool ShowFoldMarks = App.Config.Debug;
+
+        public string DataPath;
+        public int CurrentNextSeason;
+        public string? DocumentId;
+        public string Title;
+        public string Author;
+        public string Header;
+        public string Footer;
+        public DateTime Date;
+
         public Document(string title) {
+            var c = App.Client;
             DataPath = App.DataPath;
+            CurrentNextSeason = Utils.CurrentNextSeason;
             Title = title;
-            Header = $"<h1>{App.Client.Name}</h1>";
-            Footer = App.Client.NameFull;
+            Author = c.NameFull;
+            Header = $"<div class='name'>{c.Name}</div><div class='suffix'>{c.NameSuffix}</div>";
+            Footer = Utils.GenerateFooter("<br/>", " \u00b7 ")
+                .Item(c.NameFull).NextLine()
+                .Item(c.Address).Item($"{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;
         }
 
@@ -23,41 +42,35 @@ namespace Elwig.Documents {
         public void Dispose() {
             PdfFile?.Dispose();
             PdfFile = null;
+            GC.SuppressFinalize(this);
         }
 
-        public string DataPath { 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; }
-
-        private async Task<string> Render() {
+        private Task<string> Render() {
             string name;
             if (this is BusinessLetter) {
                 name = "BusinessLetter";
             } else if (this is DeliveryNote) {
                 name = "DeliveryNote";
+            } else if (this is CreditNote) {
+                name = "CreditNote";
+            } else if (this is DeliveryJournal) {
+                name = "DeliveryJournal";
             } else {
                 throw new InvalidOperationException("Invalid document object");
             }
-            return await Html.CompileRenderAsync(name, this);
+            return Render(name);
+        }
+
+        private Task<string> Render(string name) {
+            return Html.CompileRenderAsync(name, this);
         }
 
         public async Task Generate() {
             var pdf = new TempFile("pdf");
             using (var tmpHtml = new TempFile("html")) {
-                await File.WriteAllTextAsync(tmpHtml.FilePath, await Render());
+                await File.WriteAllTextAsync(tmpHtml.FilePath, await Render(), Utils.UTF8);
                 await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath);
             }
-            Pdf.UpdateMetadata(pdf.FilePath, Title, "Winzergenossenschaft für Matzen und Umgebung reg. Gen.m.b.H.");
             PdfFile = pdf;
         }
 
@@ -66,9 +79,9 @@ 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

@@ -18,6 +18,8 @@ namespace Elwig.Documents {
             await e.CompileTemplateAsync("BusinessDocument");
             await e.CompileTemplateAsync("BusinessLetter");
             await e.CompileTemplateAsync("DeliveryNote");
+            await e.CompileTemplateAsync("CreditNote");
+            await e.CompileTemplateAsync("DeliveryJournal");
 
             Engine = e;
             evtHandler();

Elwig/Documents/Pdf.cs

@@ -1,62 +1,45 @@
-using System;
 using System.Threading.Tasks;
-using System.Windows;
-using PdfSharp.Pdf.IO;
-using PuppeteerSharp;
 using Elwig.Helpers;
 using Elwig.Windows;
+using System.Diagnostics;
+using Balbarak.WeasyPrint;
+using System;
+using System.IO;
 
 namespace Elwig.Documents {
     public static class Pdf {
 
-        private static readonly string Chromium = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";
-        private static IBrowser? Browser = null;
-        public static bool IsReady => Browser != null;
+        private static readonly string PdfToPrinter = App.ExePath + "PDFtoPrinter.exe";
+        private static readonly FilesManager WeasyPrintManager = new();
+        private static string? WeasyPrintPython = null;
+        private static string? WeasyPrintDir => WeasyPrintManager.FolderPath;
+        public static bool IsReady => WeasyPrintPython != null && WeasyPrintDir != null;
 
         public static async Task Init(Action evtHandler) {
-            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" },
-            });
+            if (!WeasyPrintManager.IsFilesExsited()) {
+                await WeasyPrintManager.InitFilesAsync();
+            }
+            WeasyPrintPython = Path.Combine(WeasyPrintManager.FolderPath, "python.exe");
             evtHandler();
         }
 
-        public static async Task Close() {
-            if (Browser == null) return;
-            await Browser.CloseAsync();
-            Browser = null;
-        }
-
         public static async Task Convert(string htmlPath, string pdfPath) {
-            if (Browser == null) throw new InvalidOperationException("The puppeteer engine has not been initialized yet");
-            using var page = await Browser.NewPageAsync();
-            page.Console += OnConsole;
-            await page.GoToAsync($"file://{htmlPath}");
-            await page.EvaluateFunctionAsync("async () => { await window.PagedPolyfill.preview(); }");
-            await page.PdfAsync(pdfPath, new() {
-                PreferCSSPageSize = true,
-                //Format = PaperFormat.A4,
-                DisplayHeaderFooter = false,
-                MarginOptions = new() {
-                    Top = "0mm",
-                    Right = "0mm",
-                    Bottom = "0mm",
-                    Left = "0mm",
-                },
-            });
-        }
-
-        private static void OnConsole(object sender, ConsoleEventArgs e) {
-            MessageBox.Show(e.Message.Text);
-        }
-
-        public static void UpdateMetadata(string path, string title, string author) {
-            using var doc = PdfReader.Open(path);
-            doc.Info.Title = title;
-            doc.Info.Author = author;
-            doc.Save(path);
+            var p = new Process() { StartInfo = new() {
+                FileName = WeasyPrintPython,
+                CreateNoWindow = true,
+                WorkingDirectory = WeasyPrintDir,
+                RedirectStandardError = true,
+            } };
+            p.StartInfo.EnvironmentVariables["PATH"] = "Scripts;gtk3;" + Environment.GetEnvironmentVariable("PATH");
+            p.StartInfo.ArgumentList.Add("scripts/weasyprint.exe");
+            p.StartInfo.ArgumentList.Add("-e");
+            p.StartInfo.ArgumentList.Add("utf8");
+            p.StartInfo.ArgumentList.Add(htmlPath);
+            p.StartInfo.ArgumentList.Add(pdfPath);
+            p.Start();
+            await p.WaitForExitAsync();
+            var stderr = await p.StandardError.ReadToEndAsync();
+            if (p.ExitCode != 0) throw new Exception(stderr);
         }
 
         public static void Show(TempFile file, string title) {
@@ -73,8 +56,12 @@ 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-businessdocument.css

@@ -0,0 +1,142 @@
+
+.address-wrapper, aside, main {
+    overflow: hidden;
+}
+
+.spacing {
+    height: 20mm;
+}
+
+.info-wrapper {
+    width: 100%;
+    height: 45mm;
+    margin: 0 0 2mm 0;
+    position: relative;
+}
+
+.info-wrapper .date {
+    text-align: right;
+    position: absolute;
+    right: 0;
+    bottom: -1.5em;
+}
+
+.address-wrapper {
+    height: 45mm;
+    width: 85mm;
+    margin: 0;
+    padding: 5mm;
+    position: absolute;
+    left: -5mm;
+    top: 0;
+}
+
+.address-wrapper .sender {
+    height: 4em;
+    font-size: 8pt;
+    padding: 1em 0;
+}
+
+address {
+    height: 5em;
+    white-space: pre-line;
+    font-size: 12pt;
+    font-style: normal;
+}
+
+aside {
+    height: 40mm;
+    width: 75mm;
+    margin: 0;
+    position: absolute;
+    left: 100mm;
+    top: 5mm;
+}
+
+aside table {
+    border-collapse: collapse;
+    border: 0.5pt solid #808080;
+    width: 65mm;
+    margin-right: 10mm;
+}
+
+aside table thead:not(:first-child) tr {
+    border-top: 0.5pt 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 {
+    padding: 0.25mm 0.5mm 0.25mm 1mm;
+}
+
+aside table tbody td {
+    padding: 0.25mm 0;
+}
+
+aside table tbody th {
+    font-weight: normal;
+}
+
+main {
+    margin: 2em 0 1em 0;
+}
+
+main > *:first-child {
+    margin-top: 0;
+}
+
+main h1, .main-wrapper p {
+    font-size: 12pt;
+    margin: 1em 0;
+    text-align: justify;
+}
+
+.main-wrapper p {
+    widows: 3;
+    orphans: 3;
+    hyphens: manual;
+}
+
+main h1 {
+    margin-top: 0;
+    margin-bottom: 2em;
+}
+
+.main-wrapper p.comment {
+    font-size: 10pt;
+}
+
+.main-wrapper .hidden {
+    break-before: avoid;
+}
+
+.main-wrapper .bottom {
+    bottom: 0;
+    position: absolute;
+    width: 165mm;
+}
+
+.main-wrapper .signatures {
+    width: 100%;
+    display: flex;
+    justify-content: space-around;
+    margin: 20mm 0 2mm 0;
+}
+
+.main-wrapper .signatures > * {
+    width: 50mm;
+    border-top: 0.5pt solid black;
+    padding-top: 1mm;
+    text-align: center;
+    font-size: 10pt;
+}

Elwig/Documents/style-creditnote.css

@@ -0,0 +1,64 @@
+
+table.credit {
+    font-size: 10pt;
+}
+
+table.credit th,
+table.credit td {
+    padding: 0 0.25mm;
+}
+
+table.credit thead {
+    font-size: 8pt
+}
+
+table.credit thead th {
+    font-weight: normal;
+    font-style: italic;
+    vertical-align: bottom;
+}
+
+table.credit td {
+    vertical-align: top;
+}
+
+table.credit .oe,
+table.credit .kmw {
+    text-align: center;
+}
+
+table.credit .dpnr {
+    text-align: center;
+}
+
+table.credit .amount,
+table.credit .weight {
+    text-align: right;
+}
+
+table.credit .rel,
+table.credit .abs {
+    text-align: center;
+}
+
+table.credit .amount.sum {
+    vertical-align: bottom;
+    padding-bottom: 1mm;
+}
+
+table.credit tbody tr:not(.first):not(.last) {
+    break-before: avoid;
+    break-after: avoid;
+}
+
+table.credit tbody tr.first td {
+    padding-top: 1mm;
+}
+
+table.credit tbody tr.last td {
+    padding-bottom: 1mm;
+}
+
+table.credit tbody tr.new {
+    border-top: 0.5pt solid black;
+}

Elwig/Documents/style-deliveryjournal.css

@@ -0,0 +1,47 @@
+
+h1 {
+    text-align: center;
+    font-size: 24pt;
+    margin-bottom: 2mm;
+}
+
+h2 {
+    text-align: center;
+    font-size: 14pt;
+    margin-top: 2mm;
+}
+
+table.journal {
+    font-size: 10pt;
+}
+
+table.journal thead {
+    font-size: 8pt;
+}
+
+table.journal th {
+    font-weight: normal;
+    font-style: italic;
+}
+
+table.journal td {
+    overflow: hidden;
+    white-space: nowrap;
+}
+
+table.journal .mgnr,
+table.journal .weight {
+    text-align: right;
+}
+
+table.journal .grad {
+    text-align: center;
+}
+
+table.journal tr.sum {
+    font-weight: bold;
+}
+
+table.journal tr.sum td {
+    border-top: 0.5pt solid black;
+}

Elwig/Documents/style-deliverynote.css

@@ -0,0 +1,99 @@
+
+main h1 {
+    margin-bottom: 1.5em !important;
+}
+
+table.delivery {
+    margin-bottom: 5mm;
+}
+
+table.delivery tr:not(.main) {
+    break-before: avoid;
+}
+
+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;
+}
+
+/* FIXME update version of WeasyPrint
+table.delivery tr.tight:has(+ tr:not(.tight)) td {
+padding-bottom: 0.5mm !important;
+}
+*/
+
+table.delivery tr.sum {
+    border-top: 0.5pt solid black;
+    break-before: avoid;
+}
+
+table.delivery tr.sum td {
+    padding-top: 1mm;
+}
+
+table.delivery-stats {
+    font-size: 8pt;
+    break-inside: avoid;
+    break-after: avoid;
+}
+
+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;
+}

Elwig/Documents/style-page.css

@@ -0,0 +1,71 @@
+
+.m1, .m2, .m3 {
+    height: 0;
+    width: 10mm;
+    position: fixed;
+    left: -25mm;
+    border-top: 0.5pt solid black;
+}
+.m1.r, .m2.r, .m3.r {
+    left: initial;
+    right: -20mm;
+}
+.m1 {top: 80mm;}
+.m2 {top: 123.5mm;}
+.m3 {top: 185mm;}
+
+.page-break {
+    break-before: page;
+}
+hr.page-break {
+    display: none;
+}
+
+@page {
+    size: A4;
+    margin: 25mm 20mm 35mm 25mm;
+
+    @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: 0 20mm 40mm 25mm;
+    }
+
+    .footer-wrapper {
+        position: fixed;
+        bottom: 0;
+        left: 0;
+        right: 0;
+        background: white;
+    }
+}
+
+@media print {
+    .page::after {
+        content: "Seite " counter(page) " von " counter(pages) !important;
+    }
+}

Elwig/Documents/style.css

@@ -12,170 +12,90 @@ body {
     margin: 0;
 }
 
-.m1, .m2, .m3 {
-    height: 0;
-    width: 1cm;
-    position: fixed;
-    left: 0;
-    border-top: 1pt solid black;
+table {
+    width: 100%;
+    border-collapse: collapse;
+    table-layout: fixed;
 }
 
-.m1 {top: 105mm;}
-.m2 {top: 148.5mm;}
-.m3 {top: 210mm;}
+table td,
+table th {
+    padding: 0.5mm 1mm;
+}
+
+table th {
+    text-align: center;
+}
 
 header {
     height: 45mm;
-    padding: 5mm;
+    padding: 10mm 0 0 0;
     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;
+    overflow: hidden;
 }
 
-.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;
+header .name {
+    font-size: 18pt;
+    margin-top: 10mm;
+    font-weight: bold;
 }
 
-.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;
+header .suffix {
     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;
+    font-weight: bold;
 }
 
 .footer-wrapper {
-    padding: 0 20mm 0 25mm;
     position: running(page-footer);
-    bottom: 0;
-    left: 0;
-    right: 0;
+    width: 165mm;
 }
 
 .pre-footer {
-    margin: 4.23mm 0;
+    margin: 1em 0;
     font-size: 10pt;
-    display: flex;
 }
 
-.pre-footer .date, .pre-footer .page {
-    flex: 100px 1 1;
+.pre-footer > * {
+    display: inline-block;
+    width: 33%;
 }
 
-.pre-footer .date {text-align: left;}
-.pre-footer .page {text-align: right;}
-.page::after {
+.pre-footer .date {
+    text-align: left;
+}
+
+.pre-footer .doc-id {
+    text-align: center;
+    font-style: italic;
+}
+
+.pre-footer .page {
+    text-align: right;
+    float: right;
+}
+
+.pre-footer .page::after {
     content: "Seite 1 von 1";
 }
 
 footer {
     font-size: 10pt;
-    border-top: 1pt solid black;
+    border-top: 0.5pt solid black;
     height: 25mm;
     padding-top: 1mm;
     text-align: center;
 }
 
-table {
-    width: 100%;
-    border-collapse: collapse;
+.hidden {
+    visibility: hidden;
 }
 
-@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;
-    }
+hr {
+    border: none;
+    border-top: 0.5pt solid black;
+    margin: 5mm 0;
 }

Elwig/Elwig.csproj

@@ -7,6 +7,8 @@
     <UseWPF>true</UseWPF>
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <ApplicationIcon>elwig.ico</ApplicationIcon>
+    <Version>0.3.2</Version>
+    <SatelliteResourceLanguages>de-AT</SatelliteResourceLanguages>
   </PropertyGroup>
 
   <ItemGroup>
@@ -14,16 +16,15 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Balbarak.WeasyPrint" Version="2.0.2" />
+    <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="PdfSharp" Version="1.50.5147" />
-    <PackageReference Include="PuppeteerSharp" Version="9.1.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.22" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="7.0.11" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.11" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.1938.49" />
     <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>

Elwig/Helpers/AppDbContext.cs

@@ -6,40 +6,52 @@ 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<Currency> Currencies { get; set; }
-        public DbSet<ClientParam> ClientParameters { get; set; }
-        public DbSet<Member> Members { get; set; }
-        public DbSet<BillingAddr> 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_Plz> Postleitzahlen { get; set; }
-        public DbSet<AT_PlzDest> PlzDestinations { 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<AreaCom> AreaCommitments { get; set; }
-        public DbSet<AreaComParcel> AreaCommitmentParcels { get; set; }
-        public DbSet<AreaComAttr> AreaCommitmentAttributes { get; set; }
-        public DbSet<Contract> Contracts { get; set; }
-        public DbSet<WineOrigin> WineOrigins { 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<Season> Seasons { get; set; }
-        public DbSet<Delivery> Deliveries { get; set; }
-        public DbSet<DeliveryPart> DeliveryParts { get; set; }
-        public DbSet<DeliveryPartAttr> DeliveryPartAttributes { get; set; }
-        public DbSet<DeliveryPartModifier> DeliveryPartModifiers { 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; }
+        public DbSet<PaymentMember> MemberPayments { get; private set; }
+        public DbSet<Credit> Credits { 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) {
@@ -52,10 +64,26 @@ namespace Elwig.Helpers {
                     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.DatabaseFile}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default");
+            optionsBuilder.UseSqlite(ConnectionString);
             optionsBuilder.UseLazyLoadingProxies();
             optionsBuilder.LogTo(Log, LogLevel.Information);
             base.OnConfiguring(optionsBuilder);
@@ -67,6 +95,10 @@ namespace Elwig.Helpers {
             GC.SuppressFinalize(this);
         }
 
+        private void OnSavedChanges(object? sender, SavedChangesEventArgs evt) {
+            SavedLastWriteTime = LastWriteTime;
+        }
+
         protected void Log(string msg) {
             LogFile?.WriteLine(msg);
         }
@@ -75,22 +107,125 @@ namespace Elwig.Helpers {
             return await Members.FindAsync(mgnr) != null;
         }
 
-        public async Task<bool> VNrExists(int vnr) {
-            return await Contracts.FindAsync(vnr) != 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> NextVNr() {
-            int c = await Contracts.Select(co => co.VNr).MinAsync();
-            (await Contracts.OrderBy(co => co.VNr).Select(co => co.VNr).ToListAsync())
+        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/AppDbUpdater.cs

@@ -0,0 +1,85 @@
+using Microsoft.Data.Sqlite;
+using System;
+
+namespace Elwig.Helpers {
+    public static class AppDbUpdater {
+
+        public static readonly int RequiredSchemaVersion = 2;
+
+        private static int _versionOffset = 0;
+        private static readonly Action<SqliteConnection>[] _updaters = new[] {
+            UpdateDbSchema_1_To_2, UpdateDbSchema_2_To_3
+        };
+
+        private static void ExecuteNonQuery(SqliteConnection cnx, string sql) {
+            using var cmd = cnx.CreateCommand();
+            cmd.CommandText = sql;
+            cmd.ExecuteNonQuery();
+        }
+
+        private static object? ExecuteScalar(SqliteConnection cnx, string sql) {
+            using var cmd = cnx.CreateCommand();
+            cmd.CommandText = sql;
+            return cmd.ExecuteScalar();
+        }
+
+        public static string CheckDb() {
+            using var cnx = AppDbContext.Connect();
+
+            var applId = (long?)ExecuteScalar(cnx, "PRAGMA application_id") ?? 0;
+            if (applId != 0x454C5747) throw new Exception("Invalid application_id of database");
+
+            var schemaVers = (long?)ExecuteScalar(cnx, "PRAGMA schema_version") ?? 0;
+            _versionOffset = (int)(schemaVers % 100);
+            if (_versionOffset != 0) {
+                // schema was modified manually/externally
+                // TODO issue warning
+            }
+            UpdateDbSchema(cnx, (int)(schemaVers / 100), RequiredSchemaVersion);
+
+            var userVers = (long?)ExecuteScalar(cnx, "PRAGMA user_version") ?? 0;
+            var major = userVers >> 24;
+            var minor = (userVers >> 16) & 0xFF;
+            var patch = userVers & 0xFFFF;
+
+            if (App.VersionMajor > major ||
+                (App.VersionMajor == major && App.VersionMinor > minor) ||
+                (App.VersionMajor == major && App.VersionMinor == minor && App.VersionPatch > patch))
+            {
+                long vers = (App.VersionMajor << 24) | (App.VersionMinor << 16) | App.VersionPatch;
+                ExecuteNonQuery(cnx, $"PRAGMA user_version = {vers}");
+            }
+
+            return $"{major}.{minor}.{patch}";
+        }
+
+        private static void UpdateDbSchema(SqliteConnection cnx, int fromVersion, int toVersion) {
+            if (fromVersion == toVersion) {
+                return;
+            } else if (fromVersion > toVersion) {
+                throw new Exception("schema_version of database is too new");
+            } else if (toVersion - 1 > _updaters.Length) {
+                throw new Exception("Unable to update database schema: Updater not implemented");
+            } else if (fromVersion <= 0) {
+                throw new Exception("schema_version of database is invalid");
+            }
+
+            ExecuteNonQuery(cnx, "PRAGMA locking_mode = EXCLUSIVE");
+            ExecuteNonQuery(cnx, "BEGIN EXCLUSIVE");
+            for (int i = fromVersion; i < toVersion; i++) {
+                _updaters[i - 1](cnx);
+            }
+            ExecuteNonQuery(cnx, "COMMIT");
+            ExecuteNonQuery(cnx, "VACUUM");
+            ExecuteNonQuery(cnx, $"PRAGMA schema_version = {toVersion * 100 + _versionOffset}");
+        }
+
+        private static void UpdateDbSchema_1_To_2(SqliteConnection cnx) {
+            ExecuteNonQuery(cnx, "DROP VIEW v_area_commitment");
+            ExecuteNonQuery(cnx, "ALTER TABLE delivery_part DROP COLUMN weighing_reason");
+            ExecuteNonQuery(cnx, "ALTER TABLE delivery_part ADD COLUMN weighing_reason TEXT CHECK(NOT (manual_weighing = FALSE AND weighing_reason IS NOT NULL))");
+        }
+
+        private static void UpdateDbSchema_2_To_3(SqliteConnection cnx) { }
+    }
+}

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/Billing/Graph.cs

@@ -0,0 +1,119 @@
+using ScottPlot;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json.Nodes;
+
+namespace Elwig.Helpers.Billing {
+    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, JsonObject 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(JsonObject graphData) {
+            var GraphPoints = graphData.ToDictionary(p => int.Parse(p.Key[..^2]), p => (double)p.Value?.AsValue());
+
+            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 JsonObject ToJson() {
+            JsonObject graph = new();
+
+            if (DataY[0] != DataY[1]) {
+                graph.Add(new KeyValuePair<string, JsonNode?>(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 KeyValuePair<string, JsonNode?>(DataX[i] + Type.ToLower(), Math.Round(DataY[i], 4)));
+                }
+            }
+            if (DataY[^1] != DataY[^2]) {
+                graph.Add(new KeyValuePair<string, JsonNode?>(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/Helpers/Billing/Transaction.cs

@@ -0,0 +1,32 @@
+using Elwig.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Elwig.Helpers.Billing {
+    public class Transaction {
+
+        public readonly Member Member;
+        public readonly long AmountCent;
+        public readonly string Currency;
+        public readonly int Nr;
+
+        public Transaction(Member m, decimal amount, string currency, int nr) {
+            Member = m;
+            AmountCent = (long)Math.Round(amount * 100);
+            Currency = currency;
+            Nr = nr;
+        }
+
+        public static IEnumerable<Transaction> FromPaymentVariant(PaymentVar variant) {
+            var last = variant.Season.PaymentVariants.Where(v => v.TransferDate != null).OrderBy(v => v.TransferDate).LastOrDefault();
+            var dict = last?.MemberPayments.ToDictionary(m => m.MgNr, m => m.Amount) ?? new();
+            return variant.Credits
+                .OrderBy(c => c.MgNr)
+                .Select(c => new Transaction(c.Member, c.Amount, variant.Season.CurrencyCode, c.TgNr))
+                .ToList();
+        }
+
+        public static string FormatAmountCent(long cents) => $"{cents / 100}.{cents % 100:00}";
+    }
+}

Elwig/Helpers/ClientParameters.cs

@@ -1,14 +1,27 @@
 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, Winzerkeller };
+
+        public bool IsMatzen => Client == Type.Matzen;
+        public bool IsWinzerkeller => Client == Type.Winzerkeller;
+        public bool IsWolkersdorf => Client == Type.Winzerkeller && App.ZwstId == "W";
+        public bool IsHaugsdorf => Client == Type.Winzerkeller && App.ZwstId == "H";
+        public bool IsSitzendorf => Client == Type.Winzerkeller && App.ZwstId == "S";
+
         public string NameToken;
         public string NameShort;
-		public string NameShortened;
         public string Name;
-		public string NameSuffix;
-		public string NameFull => $"{Name} {NameSuffix}";
+        public string? NameSuffix;
+        public string NameType;
+        public string NameFull => NameSuffix == null ? $"{Name} {NameType}" : $"{Name}, {NameSuffix}, {NameType}";
+        public Type? Client;
 
         public PostalDest PostalDest {
             set {
@@ -16,15 +29,15 @@ namespace Elwig.Helpers {
                 Ort = value.AtPlz.Ort.Name;
             }
         }
-		public int Plz { get; private set; }
-		public string Ort { get; private set; }
+        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? UstId;
+        public string? UstIdNr;
         public string? LfbisNr;
 
         public string? PhoneNr;
@@ -32,16 +45,98 @@ namespace Elwig.Helpers {
         public string? EmailAddress;
         public string? Website;
 
-		public ClientParameters() {
-			NameToken = "WGM";
-			NameShort = "WG Matzen";
-			NameShortened = "Winzergenossenschaft f. Matzen u. Umgebung";
-			Name = "Winzergenossenschaft für Matzen und Umgebung";
-			NameSuffix = "reg. Gen.m.b.H.";
-			Plz = 2243;
-			Ort = "Matzen";
-			Address = "Schloßstraße 6";
-			Sender2 = "E Österreichische Post AG Eco Brief";
+        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.Winzerkeller; 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

@@ -1,7 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text;
 using IniParser;
 using IniParser.Model;
 
@@ -9,10 +8,12 @@ namespace Elwig.Helpers {
     public class Config {
 
         private readonly string FileName;
+        public bool Debug;
         public string DatabaseFile = App.DataPath + "database.sqlite3";
         public string? DatabaseLog = null;
-        public IEnumerable<string[]> Scales;
-        private readonly LinkedList<string[]> ScaleList = new();
+        public string? Branch = null;
+        public IList<string?[]> Scales;
+        private readonly List<string?[]> ScaleList = new();
 
         public Config(string filename) {
             FileName = filename;
@@ -24,7 +25,7 @@ namespace Elwig.Helpers {
             var parser = new FileIniDataParser();
             IniData? ini = null;
             try {
-                ini = parser.ReadFile(FileName, Encoding.UTF8);
+                ini = parser.ReadFile(FileName, Utils.UTF8);
             } catch {}
 
             if (ini == null || !ini.TryGetKey("database.file", out string db)) {
@@ -43,20 +44,43 @@ namespace Elwig.Helpers {
                 DatabaseLog = App.DataPath + log;
             }
 
+            if (ini == null || !ini.TryGetKey("general.branch", out string branch)) {
+                Branch = null;
+            } else {
+                Branch = branch;
+            }
+
+            if (ini == null || !ini.TryGetKey("general.debug", out string debug)) {
+                Debug = false;
+            } else {
+                debug = debug.ToLower();
+                Debug = debug == "1" || debug == "true" || debug == "yes" || debug == "on";
+            }
+
             ScaleList.Clear();
             Scales = ScaleList;
             if (ini != null) {
                 foreach (var s in ini.Sections.Where(s => s.SectionName.StartsWith("scale."))) {
-                    ScaleList.AddLast(new string[] {
+                    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"]
+                        s.Keys["empty"], s.Keys["filling"], s.Keys["limit"], scaleLog
                     });
                 }
             }
         }
 
         public void Write() {
-            using var file = new StreamWriter(FileName, false, Encoding.UTF8);
+            using var file = new StreamWriter(FileName, false, Utils.UTF8);
+            file.Write($"\r\n[general]\r\n");
+            if (Branch != null) file.Write($"branch = {Branch}\r\n");
+            if (Debug) file.Write("debug = true\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) {
@@ -64,6 +88,7 @@ namespace Elwig.Helpers {
                 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 +1,67 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System;
+
+namespace Elwig.Helpers.Export {
+
+    using Row = Tuple<(string?, string?, string?, string?, string, int, string, int), (string, int, string, string, string, int, string, double, double)>;
+
+    public class Bki : Csv<Row> {
+
+        private readonly string _clientData;
+
+        public Bki(string filename) : base(filename, ';', Encoding.Latin1) {
+            Header = """
+                EDV-Liste zum automatischen Einlesen in die Weindatenbank;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+                ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+                Stammdaten;;;;;;;;;;;;;;Transportschein;;;;;;;;;;;;;;;;
+                Empfänger:;;;;;;;Versender:;;;;;;;;;;;;;;;;;;;;;;;
+                Betriebsnr;Name od. Firmenname;Vorname;Straße;Hausnr;Plz;Ort;Betriebsnr;Name od. Firmenname;Vorname;Straße;Hausnr;Plz;Ort;Datum der Lieferung;Menge in kg;Art;Weiß;Rot;Sorte1;Sorte2;Sorte3;Qualitätsstufe;Jahrgang;Herkunft;°KMW;°Oe;Vollablieferer;Ha Gesamt;Ha Ertragsfähig;Flächenbindung in Ha für AMA
+                """;
+            var c = App.Client;
+            var (a1, a2) = Utils.SplitAddress(c.Address);
+            _clientData = $"{c.LfbisNr};{c.NameFull};;{a1};{a2};{c.Plz};{c.Ort}";
+        }
+
+        public async Task ExportAsync(int year) {
+            using var cnx = await AppDbContext.ConnectAsync();
+            using var cmd = cnx.CreateCommand();
+            cmd.CommandText = $"""
+                SELECT lfbis_nr, family_name, name, billing_name, address, plz, ort, area,
+                       date, weight, type, sortid, qualid, year, hkid, kmw, oe
+                FROM v_bki_delivery
+                WHERE year = {year}
+                """;
+            var r = await cmd.ExecuteReaderAsync();
+            List<Row> rows = new();
+            while (await r.ReadAsync()) {
+                rows.Add(new(
+                    (r.IsDBNull(0) ? null : r.GetString(0), r.IsDBNull(1) ? null : r.GetString(1), r.IsDBNull(2) ? null : r.GetString(2), r.IsDBNull(3) ? null : r.GetString(3), r.GetString(4), r.GetInt32(5), r.GetString(6), r.GetInt32(7)),
+                    (r.GetString(8), r.GetInt32(9), r.GetString(10), r.GetString(11), r.GetString(12), r.GetInt32(13), r.GetString(14), r.GetDouble(15), r.GetDouble(16))
+                ));
+            }
+
+            await ExportAsync(rows);
+        }
+
+        public void Export(int year) {
+            ExportAsync(year).GetAwaiter().GetResult();
+        }
+
+        public override string FormatRow(Row row) {
+            var (member, delivery) = row;
+            var (lfBisNr, familyName, name, billingName, address, plz, ort, area) = member;
+            var (date, weight, type, sortid, qualid, year, hkid, kmw, oe) = delivery;
+
+            var (n1, n2) = billingName == null ? (familyName, name) : Utils.SplitName(billingName, familyName);
+            var (a1, a2) = Utils.SplitAddress(address);
+            var memberData = $"{lfBisNr};{n1};{n2};{a1};{a2};{plz};{ort}";
+            var deliveryData = $"{string.Join(".", date.Split("-").Reverse())};{weight};TB;{(type == "W" ? "J" : "")};{(type == "R" ? "J" : "")};{sortid};;;{qualid};{year};{hkid};{kmw:0.0};{oe:0}";
+            var vollData = $"N;;;{area / 10_000.0}";
+
+            return $"{_clientData};{memberData};{deliveryData};{vollData}";
+        }
+    }
+}

Elwig/Helpers/Export/Csv.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    public abstract class Csv<T> : IExporter<T> {
+
+        public static string FileExtension => "csv";
+
+        private readonly StreamWriter _writer;
+        protected readonly char Separator;
+        protected string? Header;
+
+        public Csv(string filename, char separator = ';') : this(filename, separator, Utils.UTF8) { }
+
+        public Csv(string filename, char separator, Encoding encoding) {
+            _writer = new StreamWriter(filename, false, encoding);
+            Separator = separator;
+        }
+
+        public void Dispose() {
+            GC.SuppressFinalize(this);
+            _writer.Dispose();
+        }
+
+        public ValueTask DisposeAsync() {
+            GC.SuppressFinalize(this);
+            return _writer.DisposeAsync();
+        }
+
+        public async Task ExportAsync(IEnumerable<T> data, IProgress<double>? progress = null) {
+            progress?.Report(0.0);
+            int count = data.Count() + 2, i = 0;
+
+            if (Header != null) await _writer.WriteLineAsync(Header);
+            progress?.Report(100.0 * ++i / count);
+
+            foreach (var row in data) {
+                await _writer.WriteLineAsync(FormatRow(row));
+                progress?.Report(100.0 * ++i / count);
+            }
+
+            await _writer.FlushAsync();
+            progress?.Report(100.0);
+        }
+
+        public void Export(IEnumerable<T> data, IProgress<double>? progress = null) {
+            ExportAsync(data, progress).GetAwaiter().GetResult();
+        }
+
+        public string FormatRow(IEnumerable row) {
+            return string.Join(Separator, row);
+        }
+
+        public abstract string FormatRow(T row);
+    }
+}

Elwig/Helpers/Export/Ebics.cs

@@ -0,0 +1,109 @@
+using Elwig.Helpers.Billing;
+using Elwig.Models;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    public class Ebics : IBankingExporter {
+
+        public static string FileExtension => "xml";
+
+        private readonly StreamWriter _writer;
+        private readonly DateOnly _date;
+        private readonly int _year;
+        private readonly string _name;
+        private readonly int _nr;
+
+        public Ebics(PaymentVar variant, string filename) {
+            _writer = new(filename, false, Utils.UTF8);
+            _date = variant.TransferDate ?? DateOnly.Parse("2021-01-10"); //throw new ArgumentException("TransferDate has to be set in PaymentVar");
+            _year = variant.Year;
+            _name = variant.Name;
+            _nr = variant.AvNr;
+        }
+
+        public void Dispose() {
+            GC.SuppressFinalize(this);
+            _writer.Dispose();
+        }
+
+        public ValueTask DisposeAsync() {
+            GC.SuppressFinalize(this);
+            return _writer.DisposeAsync();
+        }
+
+        public void Export(IEnumerable<Transaction> transactions, IProgress<double>? progress = null) {
+            ExportAsync(transactions, progress).GetAwaiter().GetResult();
+        }
+
+        public async Task ExportAsync(IEnumerable<Transaction> transactions, IProgress<double>? progress = null) {
+            progress?.Report(0.0);
+            var nbOfTxs = transactions.Count();
+            int count = nbOfTxs + 2, i = 0;
+            var ctrlSum = Transaction.FormatAmountCent(transactions.Sum(tx => tx.AmountCent));
+            var msgId = $"ELWIG-{App.Client.NameToken}-{_year}-AV{_nr:00}";
+            var pmtInfId = $"{msgId}-1";
+
+            await _writer.WriteLineAsync($"""
+                <?xml version="1.0" encoding="UTF-8"?>
+                <Document xmlns="urn:iso:std:iso:20022:tech:xsd:pain.001.001.09"
+                          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                          xsi:schemaLocation="urn:iso:std:iso:20022:tech:xsd:pain.001.001.09 pain.001.001.09.xsd">
+                  <CstmrCdtTrfInitn>
+                    <GrpHdr>
+                      <MsgId>{msgId}</MsgId>
+                      <CreDtTm>{DateTime.UtcNow:o}</CreDtTm>
+                      <NbOfTxs>{nbOfTxs}</NbOfTxs>
+                      <CtrlSum>{ctrlSum}</CtrlSum>
+                      <InitgPty><Nm>{App.Client.NameFull}</Nm></InitgPty>
+                    </GrpHdr>
+                    <PmtInf>
+                      <PmtInfId>{pmtInfId}</PmtInfId>
+                      <PmtMtd>TRF</PmtMtd>
+                      <NbOfTxs>{nbOfTxs}</NbOfTxs>
+                      <CtrlSum>{ctrlSum}</CtrlSum>
+                      <ReqdExctnDt><Dt>{_date:yyyy-MM-dd}</Dt></ReqdExctnDt>
+                      <Dbtr><Nm>{App.Client.NameFull}</Nm></Dbtr>
+                      <DbtrAcct><Id><IBAN>{App.Client.Iban?.Replace(" ", "")}</IBAN></Id></DbtrAcct>
+                      <DbtrAgt><FinInstnId><BICFI>{App.Client.Bic ?? "NOTPROVIDED"}</BICFI></FinInstnId></DbtrAgt>
+                """);
+            progress?.Report(100.0 * ++i / count);
+
+            foreach (var tx in transactions) {
+                var a = (IAddress?)tx.Member.BillingAddress ?? tx.Member;
+                var (a1, a2) = Utils.SplitAddress(a.Address);
+                var id = $"ELWIG-{App.Client.NameToken}-{_year}-TG{tx.Nr:0000}";
+                var info = $"{_name} - Traubengutschrift {_year}/{tx.Nr:000}";
+                await _writer.WriteLineAsync($"""
+                          <CdtTrfTxInf>
+                            <PmtId><EndToEndId>{id}</EndToEndId></PmtId>
+                            <Amt><InstdAmt Ccy="{tx.Currency}">{Transaction.FormatAmountCent(tx.AmountCent)}</InstdAmt></Amt>
+                            <Cdtr>
+                              <Nm>{a.Name}</Nm>
+                              <PstlAdr>
+                                <StrtNm>{a1}</StrtNm><BldgNb>{a2}</BldgNb>
+                                <PstCd>{a.PostalDest.AtPlz?.Plz}</PstCd><TwnNm>{a.PostalDest.AtPlz?.Ort.Name}</TwnNm>
+                                <Ctry>{a.PostalDest.Country.Alpha2}</Ctry>
+                              </PstlAdr>
+                            </Cdtr>
+                            <CdtrAcct><Id><IBAN>{tx.Member.Iban}</IBAN></Id><CdtrAcct>
+                            <CdtrAgt><FinInstnId><BICFI>{tx.Member.Bic ?? "NOTPROVIDED"}</BICFI></FinInstnId></CdtrAgt>
+                            <RmtInf><Ustrd>{info}</Ustrd></RmtInf>
+                          </CdtTrfTxInf>
+                    """);
+                progress?.Report(100.0 * ++i / count);
+            }
+
+            await _writer.WriteLineAsync("""
+                    </PmtInf>
+                  </CstmrCdtTrfInitn>
+                </Document>
+                """);
+            await _writer.FlushAsync();
+            progress?.Report(100.0);
+        }
+    }
+}

Elwig/Helpers/Export/Elba.cs

@@ -0,0 +1,15 @@
+using Elwig.Helpers.Billing;
+using System;
+
+namespace Elwig.Helpers.Export {
+    public class Elba : Csv<Transaction>, IBankingExporter {
+
+        public static new string FileExtension => "elba";
+
+        public Elba(string filename) : base(filename) { }
+
+        public override string FormatRow(Transaction row) {
+            throw new NotImplementedException();
+        }
+    }
+}

Elwig/Helpers/Export/IBankingExporter.cs

@@ -0,0 +1,8 @@
+using Elwig.Helpers.Billing;
+
+namespace Elwig.Helpers.Export {
+    /// <summary>
+    /// Interface for exporting banking data
+    /// </summary>
+    public interface IBankingExporter : IExporter<Transaction> { }
+}

Elwig/Helpers/Export/IExporter.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Export {
+    public interface IExporter<T> : IDisposable, IAsyncDisposable {
+        /// <summary>
+        /// The default file extension of the exported files to be used (whithout a preceding ".")
+        /// </summary>
+        static abstract string FileExtension { get; }
+
+        /// <summary>
+        /// Export the given data to the given file.
+        /// </summary>
+        /// <param name="data">The data to be exported</param>
+        /// <param name="progress">The progress object to report to</param>
+        void Export(IEnumerable<T> data, IProgress<double>? progress = null);
+
+        /// <summary>
+        /// Asynchronosly export the given data to the given file.
+        /// </summary>
+        /// <param name="data">The data to be exported</param>
+        /// <param name="progress">The progress object to report to</param>
+        Task ExportAsync(IEnumerable<T> data, IProgress<double>? progress = null);
+    }
+}

Elwig/Helpers/IAddress.cs

@@ -0,0 +1,9 @@
+using Elwig.Models;
+
+namespace Elwig.Helpers {
+    public interface IAddress {
+        string Name { get; }
+        string Address { get; }
+        PostalDest PostalDest { get; }
+    }
+}

Elwig/Helpers/NullItem.cs

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

Elwig/Helpers/TempFile.cs

@@ -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

@@ -2,32 +2,88 @@ 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 System.Text.RegularExpressions;
 using System.IO.Ports;
-using PdfSharp.Charting;
 using System.Net.Sockets;
+using Elwig.Dialogs;
+using System.Text;
+using System.Numerics;
+using Elwig.Models;
 
 namespace Elwig.Helpers {
     public static partial class Utils {
 
-        public static int CurrentSeason => DateTime.Now.Year - (DateTime.Now.Month <= 3 ? 1 : 0);
+        public static readonly Encoding UTF8 = new UTF8Encoding(false, true);
+
+        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();
+        public static readonly Regex AddressRegex = GeneratedAddressRegex();
 
         [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]+)?$", RegexOptions.Compiled)]
+        [GeneratedRegex("^tcp://([A-Za-z0-9._-]+):([0-9]+)$", 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})?$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedFromToTimeRegex();
+
+        [GeneratedRegex(@"^(.*?) +([0-9].*)$", RegexOptions.Compiled)]
+        private static partial Regex GeneratedAddressRegex();
+
+        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 = Utils.SerialRegex.Match(connection);
+            var m = SerialRegex.Match(connection);
             if (!m.Success)
                 throw new ArgumentException("Invalid connection string for scheme \"serial\"");
 
@@ -45,91 +101,26 @@ namespace Elwig.Helpers {
                 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 TcpClient OpenTcpConnection(string connection) {
-            var m = Utils.TcpRegex.Match(connection);
+            var m = TcpRegex.Match(connection);
             if (!m.Success)
                 throw new ArgumentException("Invalid connection string for scheme \"tcp\"");
 
             var client = new TcpClient() {
                 SendTimeout = 250,
-                ReceiveTimeout = 250,
+                ReceiveTimeout = 11000,
             };
             client.Connect(m.Groups[1].Value, int.Parse(m.Groups[2].Value));
             return client;
         }
 
-        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 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 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 int Modulo(string a, int b) {
             if (a.Length == 0 || !a.All(char.IsAsciiDigit)) {
                 throw new ArgumentException("First argument has to be a decimal string");
@@ -139,6 +130,22 @@ namespace Elwig.Helpers {
             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 {
@@ -173,5 +180,147 @@ namespace Elwig.Helpers {
         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 searchKeywords
+                .Select(k => {
+                    k = k.ToLower();
+                    var scores = words.Select(w => {
+                        w = w?.ToLower();
+                        var p = w?.ToLower()?.Split(" ");
+                        if (w == null || p == null) {
+                            return 0;
+                        } else if (k == w) {
+                            return 4 + k.Length;
+                        } else if (p.Any(a => a == k)) {
+                            return 3 + k.Length;
+                        } else if (p.Any(a => a.StartsWith(k))) {
+                            return 2 + k.Length;
+                        } else if (w.Contains(k)) {
+                            return 1 + k.Length;
+                        } else {
+                            return 0;
+                        }
+                    });
+                    return scores.Max() + scores.Count(s => s > 0);
+                })
+                .Sum();
+        }
+
+        public static (int, string?)? ShowManualWeighingDialog(string? reason = null) {
+            var d = new ManualWeighingDialog(reason);
+            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}";
+
+        public static (string, string?) SplitAddress(string address) {
+            var m = AddressRegex.Match(address);
+            return (m.Groups[1].Value, m.Groups[2].Value);
+        }
+
+        public static (string, string?) SplitName(string fullName, string? familyName) {
+            if (familyName == null || familyName == "") return (fullName, null);
+            var p0 = fullName.ToLower().IndexOf(familyName.ToLower());
+            if (p0 == -1) return (fullName, null);
+            var p1 = fullName.IndexOf(" und ");
+            var p2 = fullName.ToLower().LastIndexOf(" und ");
+            if (p1 != p2) {
+                if (p0 > p1) {
+                    // A und B familyName [und ...]
+                    return (fullName[p0..^0], fullName[0..(p0 - 1)]);
+                } else {
+                    // familyName und ... A und B
+                    var p3 = fullName.LastIndexOf(' ', p2 - 1);
+                    return (fullName[0..p3], fullName[(p3 + 1)..^0]);
+                }
+            } else {
+                return (familyName, fullName.Replace(familyName, "").Replace("  ", " ").Trim());
+            }
+        }
     }
 }

Elwig/Helpers/Validator.cs

@@ -59,6 +59,71 @@ 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 && (maxLen == -1 || v1 < maxLen)) {
+                        text += ch; v1++;
+                    } else if (v2 != -1 && (maxDecimal == -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) {
             CheckInteger(input, false, 4);
             if (!required && input.Text.Length == 0) {
@@ -67,7 +132,7 @@ namespace Elwig.Helpers {
                 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);
@@ -76,7 +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++;
@@ -89,21 +154,30 @@ namespace Elwig.Helpers {
                 } else if (v == 0 && ch == '+') {
                     v++;
                     text += ch;
-                } else if (v > 0 && char.IsAsciiDigit(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;
+                    }
                 }
                 if (i == input.CaretIndex - 1)
                     pos = text.Length;
@@ -117,7 +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) {
@@ -258,7 +332,7 @@ namespace Elwig.Helpers {
             return new(true, null);
         }
 
-        public static ValidationResult CheckUstId(TextBox input, bool required) {
+        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++) {
@@ -315,7 +389,23 @@ namespace Elwig.Helpers {
             return new(true, null);
         }
 
-        public static ValidationResult CheckMgNr(TextBox input, bool required, AppDbContext ctx, Member? m) {
+        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) {
+                return new(true, null);
+            }
+
+            int nr = int.Parse(input.Text);
+            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;
@@ -331,6 +421,26 @@ namespace Elwig.Helpers {
             return new(true, null);
         }
 
+        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);
+            }
+
+            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) {
@@ -411,7 +521,7 @@ namespace Elwig.Helpers {
             return new(true, null);
         }
 
-        public static ValidationResult CheckVNr(TextBox input, bool required, AppDbContext ctx, Contract? c) {
+        public static ValidationResult CheckFbNr(TextBox input, bool required, AppDbContext ctx, AreaCom? c) {
             var res = CheckInteger(input, required);
             if (!res.IsValid) {
                 return res;
@@ -420,8 +530,8 @@ namespace Elwig.Helpers {
             }
 
             int nr = int.Parse(input.Text);
-            if (nr != c?.VNr && ctx.VNrExists(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);
@@ -431,5 +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

@@ -14,13 +14,14 @@ namespace Elwig.Helpers.Weighing {
         public string Manufacturer => "Gassner";
         public int InternalScaleNr => 1;
         public string Model { get; private set; }
-        public int ScaleNr { 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(int scaleNr, string model, string connection) {
-            ScaleNr = scaleNr;
+        public GassnerScale(string id, string model, string connection) {
+            ScaleId = id;
             Model = model;
             IsReady = true;
             HasFillingClearance = false;

Elwig/Helpers/Weighing/IScale.cs

@@ -17,9 +17,9 @@ namespace Elwig.Helpers.Weighing {
         string Model { get; }
 
         /// <summary>
-        /// Unique number of the scale
+        /// Unique identificator of the scale
         /// </summary>
-        int ScaleNr { get; }
+        string ScaleId { get; }
 
         /// <summary>
         /// Internal identifying number of the scale in its system
@@ -41,6 +41,11 @@ namespace Elwig.Helpers.Weighing {
         /// </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>

Elwig/Helpers/Weighing/InvalidScale.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Elwig.Helpers.Weighing {
+    public class InvalidScale : IScale {
+
+        public string Manufacturer => "NONE";
+        public string Model => "NONE";
+        public string ScaleId { get; private set; }
+        public int InternalScaleNr => 0;
+        public bool IsReady => false;
+        public bool HasFillingClearance => false;
+        public int? WeightLimit => null;
+        public string? LogPath => null;
+
+        public InvalidScale(string id) {
+            ScaleId = id;
+        }
+
+        public void Dispose() {
+            GC.SuppressFinalize(this);
+        }
+
+        public Task<WeighingResult> Weigh() {
+            throw new NotImplementedException();
+        }
+
+        public Task<WeighingResult> GetCurrentWeight() {
+            throw new NotImplementedException();
+        }
+
+        public Task Empty() {
+            throw new NotImplementedException();
+        }
+
+        public Task GrantFillingClearance() {
+            throw new NotImplementedException();
+        }
+
+        public Task RevokeFillingClearance() {
+            throw new NotImplementedException();
+        }
+    }
+}

Elwig/Helpers/Weighing/SchemberScale.cs

@@ -7,11 +7,12 @@ namespace Elwig.Helpers.Weighing {
 
         public string Manufacturer => "Schember";
         public string Model => throw new NotImplementedException();
-        public int ScaleNr => 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();

Elwig/Helpers/Weighing/SystecScale.cs

@@ -11,9 +11,9 @@ namespace Elwig.Helpers.Weighing {
         protected enum Output { RTS, DTR, OUT1, OUT2 };
 
         protected SerialPort? Serial = null;
+        protected SerialPort? ControlSerialEmpty = null, ControlSerialFilling = null;
         protected TcpClient? Tcp = null;
-        protected StreamReader Reader;
-        protected StreamWriter Writer;
+        protected Stream Stream;
 
         protected readonly Output? EmptyMode = null;
         protected readonly Output? FillingClearanceMode = null;
@@ -22,71 +22,89 @@ namespace Elwig.Helpers.Weighing {
         public string Manufacturer => "SysTec";
         public int InternalScaleNr => 1;
         public string Model { get; private set; }
-        public int ScaleNr { 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(int scaleNr, string model, string connection, string? empty = null, string? fill = null, int? limit = null) {
-            ScaleNr = scaleNr;
+        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;
 
-            Stream stream;
             if (connection.StartsWith("serial:")) {
                 Serial = Utils.OpenSerialConnection(connection);
-                stream = Serial.BaseStream;
+                Stream = Serial.BaseStream;
             } else if (connection.StartsWith("tcp:")) {
                 Tcp = Utils.OpenTcpConnection(connection);
-                stream = Tcp.GetStream();
+                Stream = Tcp.GetStream();
             } else {
                 throw new ArgumentException("Unsupported scheme");
             }
 
             if (empty != null) {
                 var parts = empty.Split(':');
-                EmptyMode = ConvertOutput(parts[0]);
-                EmptyDelay = int.Parse(parts[1]);
+                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]);
             }
-            FillingClearanceMode = ConvertOutput(fill);
-            WeightLimit = limit;
-            if (FillingClearanceMode != null && WeightLimit == null)
-                throw new ArgumentException("Weight limit has to be set, if filling clearance supervision is enalbed");
 
-            Writer = new(stream, Encoding.ASCII, -1, true);
-            Reader = new(stream, Encoding.ASCII, false, -1, true);
+            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() {
-            Writer.Close();
-            Reader.Close();
+            Stream.Close();
             Serial?.Close();
+            ControlSerialEmpty?.Close();
+            ControlSerialFilling?.Close();
             Tcp?.Close();
             GC.SuppressFinalize(this);
         }
 
         protected static Output? ConvertOutput(string? value) {
-            if (value == null) return null;
-            value = value.ToUpper();
-            if (value == "RTS") {
-                return Output.RTS;
-            } else if (value == "DTR") {
-                return Output.DTR;
-            } else if (value == "OUT1") {
-                return Output.OUT1;
-            } else if (value == "OUT2") {
-                return Output.OUT2;
-            }
-            throw new ArgumentException("Invalid value for argument empty");
+            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}'"),
+            };
         }
 
-        public async Task SendCommand(string command) {
-            await Writer.WriteAsync($"<{command}>");
+        protected async Task SendCommand(string command) {
+            byte[] bytes = Encoding.ASCII.GetBytes($"<{command}>");
+            await Stream.WriteAsync(bytes);
+            if (LogPath != null) await File.AppendAllTextAsync(LogPath, $"<{command}>");
         }
 
-        public async Task<string> ReceiveResponse() {
-            var line = await Reader.ReadLineAsync();
+        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, $"{line}\r\n");
+            }
             if (line == null || line.Length < 4 || !line.StartsWith("<") || !line.EndsWith(">")) {
                 throw new IOException("Invalid response from scale");
             }
@@ -94,7 +112,7 @@ namespace Elwig.Helpers.Weighing {
             var error = line[1..3];
             if (error[0] == '0') {
                 if (error[1] != '0') {
-                    throw new IOException($"Invalid response from scale (error code {error}");
+                    throw new IOException($"Invalid response from scale (error code {error})");
                 }
             } else if (error[0] == '1') {
                 string msg = $"Unbekannter Fehler (Fehler code {error})";
@@ -119,32 +137,44 @@ namespace Elwig.Helpers.Weighing {
                 throw new IOException($"Invalid response from scale (error code {error})");
             }
 
-            return line[3..(line.Length - 1)];
+            return line[1..^1];
         }
 
         protected async Task<WeighingResult> Weigh(bool incIdentNr) {
-            await SendCommand(incIdentNr ? $"RM{InternalScaleNr}" : $"RN{InternalScaleNr}");
-            string line = await ReceiveResponse();
+            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];
+            var identNr    = line[15..19].Trim();
             var scaleNr    = line[19..20];
-            var brutto     = line[20..28];
-            var tara       = line[28..36];
-            var netto      = line[36..44];
+            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];
-            var terminalNr = line[49..52];
-            var crc16      = line[52..60];
+            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.TryParse(netto.Trim(), out int w) ? w : null,
-                WeighingId = identNr.Trim().Length > 0 ? identNr.Trim() : null,
-                Date = date,
-                Time = time,
+                Weight = int.Parse(netto),
+                WeighingId = identNr,
+                FullWeighingId = identNr != null ? $"{parsedDate:yyyy-MM-dd}/{identNr}" : null,
+                Date = parsedDate,
+                Time = TimeOnly.Parse(time),
             };
         }
 
@@ -157,33 +187,35 @@ namespace Elwig.Helpers.Weighing {
         }
 
         public async Task Empty() {
-            if (EmptyMode == Output.RTS && Serial != null) {
-                Serial.RtsEnable = true;
+            SerialPort? p = ControlSerialEmpty ?? Serial;
+            if (EmptyMode == Output.RTS && p != null) {
+                p.RtsEnable = true;
                 await Task.Delay(EmptyDelay);
-                Serial.RtsEnable = false;
-            } else if (EmptyMode == Output.DTR && Serial != null) {
-                Serial.DtrEnable = true;
+                p.RtsEnable = false;
+            } else if (EmptyMode == Output.DTR && p != null) {
+                p.DtrEnable = true;
                 await Task.Delay(EmptyDelay);
-                Serial.DtrEnable = false;
+                p.DtrEnable = false;
             } else if (EmptyMode == Output.OUT1 || EmptyMode == Output.OUT2) {
                 int output = EmptyMode == Output.OUT1 ? 1 : 2;
-                await SendCommand($"OS{output:02i}");
+                await SendCommand($"OS{output:00}");
                 await ReceiveResponse();
                 await Task.Delay(EmptyDelay);
-                await SendCommand($"OC{output:02i}");
+                await SendCommand($"OC{output:00}");
                 await ReceiveResponse();
             }
         }
 
         protected async Task SetFillingClearance(bool status) {
-            if (FillingClearanceMode == Output.RTS && Serial != null) {
-                Serial.RtsEnable = status;
-            } else if (FillingClearanceMode == Output.DTR && Serial != null) {
-                Serial.DtrEnable = 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($"{cmd}{output:02i}");
+                await SendCommand($"{cmd}{output:00}");
                 await ReceiveResponse();
             }
         }

Elwig/Helpers/Weighing/WeighingResult.cs

@@ -1,3 +1,5 @@
+using System;
+
 namespace Elwig.Helpers.Weighing {
     /// <summary>
     /// Result of a weighing process on an industrial scale
@@ -13,14 +15,25 @@ namespace Elwig.Helpers.Weighing {
         /// </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 string? Date = null;
+        public DateOnly? Date = null;
 
         /// <summary>
         /// Time string provided by the scale
         /// </summary>
-        public string? Time = null;
+        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 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

@@ -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_PlzDest.cs

@@ -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

@@ -1,39 +1,55 @@
 using Microsoft.EntityFrameworkCore;
-using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Linq;
 
 namespace Elwig.Models {
-    [Table("area_commitment"), PrimaryKey("VNr")]
+    [Table("area_commitment"), PrimaryKey("FbNr")]
     public class AreaCom {
-        [Column("vnr")]
-        public int VNr { get; set; }
+        [Column("fbnr")]
+        public int FbNr { get; set; }
 
-        [Column("area")]
-        public int Area { get; set; }
+        [Column("mgnr")]
+        public int MgNr { get; set; }
 
-        [Column("sortid")]
-        public string SortId { get; set; }
+        [Column("vtrgid")]
+        public string VtrgId { get; set; }
 
         [Column("cultid")]
         public string CultId { get; set; }
 
-        [ForeignKey("VNr")]
-        public virtual Contract Contract { get; private set; }
+        [Column("area")]
+        public int Area { get; set; }
 
-        [ForeignKey("SortId")]
-        public virtual WineVar WineVar { get; private 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; }
 
-        [InverseProperty("AreaCom")]
-        public virtual ISet<AreaComParcel> Parcels { get; private set; }
+        [ForeignKey("KgNr")]
+        public virtual WbKg Kg { get; private set; }
 
-        [InverseProperty("AreaCom")]
-        public virtual ISet<AreaComAttr> AttributeEntries { get; private set; }
-
-        [NotMapped]
-        public IEnumerable<WineAttr> Attributes => AttributeEntries.Select(e => e.WineAttr);
+        [ForeignKey("KgNr, RdNr")]
+        public virtual WbRd? Rd { get; private set; }
     }
 }

Elwig/Models/AreaComAttr.cs

@@ -1,19 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace Elwig.Models {
-    [Table("area_commitment_attribute"), PrimaryKey("VNr", "AttrId")]
-    public class AreaComAttr {
-        [Column("vnr")]
-        public int VNr { get; set; }
-
-        [Column("attrid")]
-        public string AttrId { get; set; }
-
-        [ForeignKey("VNr")]
-        public virtual AreaCom AreaCom { get; private set; }
-
-        [ForeignKey("AttrId")]
-        public virtual WineAttr WineAttr { get; private set; }
-    }
-}

Elwig/Models/AreaComParcel.cs

@@ -1,31 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace Elwig.Models {
-    [Table("area_commitment_parcel"), PrimaryKey("VNr", "KgNr", "GstNr")]
-    public class AreaComParcel {
-        [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; }
-
-        [ForeignKey("KgNr")]
-        public virtual WbKg Kg { get; private set; }
-
-        [ForeignKey("KgNr, RdNr")]
-        public virtual WbRd? Rd { get; private set; }
-
-        [ForeignKey("VNr")]
-        public virtual AreaCom AreaCom { 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/BillingAddr.cs

@@ -1,9 +1,10 @@
+using Elwig.Helpers;
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
     [Table("member_billing_address"), PrimaryKey("MgNr")]
-    public class BillingAddr {
+    public class BillingAddr : IAddress {
         [Column("mgnr")]
         public int MgNr { get; set; }
 
@@ -11,7 +12,7 @@ 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 +23,10 @@ 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

@@ -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/Contract.cs

@@ -1,45 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System;
-using System.ComponentModel.DataAnnotations.Schema;
-
-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("date")]
-        public string? DateString { get; set; }
-
-        [NotMapped]
-        public DateOnly? Date {
-            get {
-                return DateString != null ? DateOnly.ParseExact(DateString, "yyyy-MM-dd") : null;
-            }
-            set {
-                DateString = value?.ToString("yyyy-MM-dd");
-            }
-        }
-
-        [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; }
-
-        [InverseProperty("Contract")]
-        public virtual AreaCom? AreaCom { get; private set; }
-
-        [NotMapped]
-        public int? Area => AreaCom?.Area;
-    }
-}

Elwig/Models/Country.cs

@@ -2,17 +2,17 @@ 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/Credit.cs

@@ -0,0 +1,104 @@
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("credit"), PrimaryKey("Year", "TgNr"), Index("Year", "AvNr", "MgNr", IsUnique = true)]
+    public class Credit {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("tgnr")]
+        public int TgNr { get; set; }
+
+        [NotMapped]
+        public string TgId => $"{Year}/{TgNr:000}";
+
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [Column("avnr")]
+        public int AvNr { get; set; }
+
+        [Column("net_amount")]
+        public long NetAmountValue { get; set; }
+        [NotMapped]
+        public decimal NetAmount {
+            get => Utils.DecFromDb(NetAmountValue, 2);
+            set => NetAmountValue = Utils.DecToDb(value, 2);
+        }
+
+        [Column("prev_net_amount")]
+        public long? PrevNetAmountValue { get; set; }
+        [NotMapped]
+        public decimal? PrevNetAmount {
+            get => PrevNetAmountValue != null ? Utils.DecFromDb(PrevNetAmountValue.Value, 2) : null;
+            set => PrevNetAmountValue = value != null ? Utils.DecToDb(value.Value, 2) : null;
+        }
+
+        [Column("vat")]
+        public double VatValue { get; set; }
+        [NotMapped]
+        public decimal Vat {
+            get => (decimal)VatValue;
+            set => VatValue = (double)value;
+        }
+
+        [Column("vat_amount")]
+        public long VatAmountValue { get; private set; }
+        [NotMapped]
+        public decimal VatAmount {
+            get => Utils.DecFromDb(VatAmountValue, 2);
+        }
+
+        [Column("gross_amount")]
+        public long GrossAmountValue { get; private set; }
+        [NotMapped]
+        public decimal GrossAmount {
+            get => Utils.DecFromDb(GrossAmountValue, 2);
+        }
+
+        [Column("modifiers")]
+        public long? ModifiersValue { get; set; }
+        [NotMapped]
+        public decimal? Modifiers {
+            get => ModifiersValue != null ? Utils.DecFromDb(ModifiersValue.Value, 2) : null;
+            set => ModifiersValue = value != null ? Utils.DecToDb(value.Value, 2) : null;
+        }
+
+        [Column("prev_modifiers")]
+        public long? PrevModifiersValue { get; set; }
+        [NotMapped]
+        public decimal? PrevModifiers {
+            get => PrevModifiersValue != null ? Utils.DecFromDb(PrevModifiersValue.Value, 2) : null;
+            set => PrevModifiersValue = value != null ? Utils.DecToDb(value.Value, 2) : null;
+        }
+
+        [Column("amount")]
+        public long AmountValue { get; private set; }
+        [NotMapped]
+        public decimal Amount {
+            get => Utils.DecFromDb(AmountValue, 2);
+        }
+
+        [Column("ctime")]
+        public long CTime { get; private set; }
+        [NotMapped]
+        public DateTime CreatedTimestamp => DateTimeOffset.FromUnixTimeSeconds(CTime).LocalDateTime;
+
+        [Column("mtime")]
+        public long MTime { get; private set; }
+        [NotMapped]
+        public DateTime ModifiedTimestamp => DateTimeOffset.FromUnixTimeSeconds(CTime).LocalDateTime;
+
+        [ForeignKey("Year, AvNr, MgNr")]
+        public virtual PaymentMember Payment { get; private set; }
+
+        [ForeignKey("Year, AvNr")]
+        public virtual PaymentVar Variant { get; private set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+    }
+}

Elwig/Models/Currency.cs

@@ -18,6 +18,6 @@ namespace Elwig.Models {
         public long? OneEuroValue { get; private set; }
 
         [NotMapped]
-        public decimal? OneEuro => OneEuroValue != null ? Utils.DecFromDb((long)OneEuroValue, 6) : null;
+        public decimal? OneEuro => OneEuroValue != null ? Utils.DecFromDb(OneEuroValue.Value, 6) : null;
     }
 }

Elwig/Models/Delivery.cs

@@ -1,7 +1,9 @@
+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)]
@@ -17,32 +19,22 @@ namespace Elwig.Models {
 
         [NotMapped]
         public DateOnly Date {
-            get {
-                return DateOnly.ParseExact(DateString, "yyyy-MM-dd");
-            }
-            set {
-                DateString = value.ToString("yyyy-MM-dd");
-            }
+            get => DateOnly.ParseExact(DateString, "yyyy-MM-dd");
+            set => DateString = value.ToString("yyyy-MM-dd");
         }
 
         [Column("time")]
-        public string TimeString { get; set; }
+        public string? TimeString { get; set; }
 
         [NotMapped]
-        public TimeOnly Time {
-            get {
-                return TimeOnly.ParseExact(TimeString, "HH:mm:ss");
-            }
-            set {
-                TimeString = value.ToString("HH:mm:ss");
-            }
+        public TimeOnly? Time {
+            get => (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);
-            }
+            get => Date.ToDateTime(Time ?? TimeOnly.MinValue);
             set {
                 Date = DateOnly.FromDateTime(value);
                 Time = TimeOnly.FromDateTime(value);
@@ -70,7 +62,33 @@ namespace Elwig.Models {
         [Column("comment")]
         public string? Comment { get; set; }
 
+        [ForeignKey("Year")]
+        public virtual Season Season { get; private 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

@@ -30,22 +30,17 @@ namespace Elwig.Models {
 
         [Column("kmw")]
         public double Kmw { get; set; }
-
         [NotMapped]
         public double Oe {
-            get {
-                return Utils.KmwToOe(Kmw);
-            }
-            set {
-                Kmw = Utils.OeToKmw(value);
-            }
+            get => Utils.KmwToOe(Kmw);
+            set => Kmw = Utils.OeToKmw(value);
         }
 
         [Column("qualid")]
         public string QualId { get; set; }
 
         [ForeignKey("QualId")]
-        public virtual WineQual Quality { get; private set; }
+        public virtual WineQualLevel Quality { get; private set; }
 
         [Column("hkid")]
         public string HkId { get; set; }
@@ -54,10 +49,10 @@ namespace Elwig.Models {
         public virtual WineOrigin Origin { get; private set; }
 
         [Column("kgnr")]
-        public int KgNr { get; set; }
+        public int? KgNr { get; set; }
 
         [ForeignKey("KgNr")]
-        public virtual WbKg Kg { get; private set; }
+        public virtual WbKg? Kg { get; private set; }
 
         [Column("rdnr")]
         public int? RdNr { get; set; }
@@ -92,6 +87,9 @@ namespace Elwig.Models {
         [Column("weighing_id")]
         public string? WeighingId { get; set; }
 
+        [Column("weighing_reason")]
+        public string? WeighingReason { get; set; }
+
         [Column("comment")]
         public string? Comment { get; set; }
 
@@ -105,6 +103,12 @@ namespace Elwig.Models {
         public virtual ISet<DeliveryPartModifier> PartModifiers { get; private set; }
 
         [NotMapped]
-        public IEnumerable<Modifier> Modifiiers => PartModifiers.Select(m => m.Modifier);
+        public IEnumerable<Modifier> Modifiers => PartModifiers.Select(m => m.Modifier).OrderBy(m => m.Ordering);
+
+        [InverseProperty("DeliveryPart")]
+        public virtual PaymentDeliveryPart? Payment { get; private set; }
+
+        [NotMapped]
+        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/Member.cs

@@ -7,7 +7,7 @@ using System.Linq;
 
 namespace Elwig.Models {
     [Table("member"), PrimaryKey("MgNr")]
-    public class Member {
+    public class Member : IAddress {
         [Column("mgnr")]
         public int MgNr { get; set; }
 
@@ -44,11 +44,14 @@ namespace Elwig.Models {
 
         public string ShortName => GivenName + " " + FamilyName;
 
-        public string AdministrativeName =>
-            FamilyName.ToUpper() + " " +
+        public string AdministrativeName => AdministrativeName1 + " " + AdministrativeName2;
+
+        public string AdministrativeName1 => FamilyName.ToUpper();
+
+        public string AdministrativeName2 =>
             (Prefix != null ? Prefix + " " : "") +
             GivenName +
-            (MiddleName != null ? " " + MiddleName: "") +
+            (MiddleName != null ? " " + MiddleName : "") +
             (Suffix != null ? " " + Suffix : "");
 
         [Column("birthday")]
@@ -92,8 +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; }
@@ -107,6 +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; }
 
@@ -114,7 +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; }
@@ -122,18 +128,6 @@ namespace Elwig.Models {
         [Column("address")]
         public string Address { get; set; }
 
-        [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; }
 
@@ -149,10 +143,10 @@ 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")]
@@ -162,11 +156,11 @@ 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 virtual IEnumerable<Contract> ActiveContracts => Contracts
-            .Where(c => c.YearFrom <= Utils.CurrentSeason && (c.YearTo ?? int.MaxValue) >= Utils.CurrentSeason);
+        public IEnumerable<AreaCom> ActiveAreaCommitments => AreaCommitments
+            .Where(c => c.YearFrom <= Utils.CurrentNextSeason && (c.YearTo ?? int.MaxValue) >= Utils.CurrentNextSeason);
 
         [InverseProperty("Member")]
         public virtual BillingAddr? BillingAddress { get; private set; }
@@ -174,31 +168,24 @@ namespace Elwig.Models {
         [InverseProperty("Member")]
         public virtual ISet<Delivery> Deliveries { get; private set; }
 
+        [InverseProperty("Member")]
+        public virtual ISet<MemberTelNr> TelephoneNumbers { get; private set; }
+
+        [InverseProperty("member")]
+        public virtual ISet<MemberEmailAddr> EmailAddresses { 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.IsAsciiDigit(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/MemberEmailAddr.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("member_email_address"), PrimaryKey("MgNr", "Nr")]
+    public class MemberEmailAddr {
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [Column("nr")]
+        public int Nr { get; set; }
+
+        [Column("address")]
+        public string Address { get; set; }
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+    }
+}

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

@@ -1,5 +1,8 @@
+using Elwig.Helpers;
 using Microsoft.EntityFrameworkCore;
+using System;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
 
 namespace Elwig.Models {
     [Table("modifier"), PrimaryKey("Year", "ModId")]
@@ -10,6 +13,9 @@ namespace Elwig.Models {
         [Column("modid")]
         public string ModId { get; set; }
 
+        [Column("ordering")]
+        public int Ordering { get; set; }
+
         [Column("name")]
         public string Name { get; set; }
 
@@ -18,16 +24,18 @@ namespace Elwig.Models {
 
         [NotMapped]
         public decimal? Abs {
-            get {
-                return AbsValue != null ? Season.DecFromDb((long)AbsValue) : null;
-            }
-            set {
-                AbsValue = value != null ? Season.DecToDb((decimal)value) : null;
-            }
+            get => AbsValue != null ? Season.DecFromDb(AbsValue.Value) : null;
+            set => AbsValue = value != null ? Season.DecToDb(value.Value) : null;
         }
 
         [Column("rel")]
-        public double? Rel { get; set; }
+        public double? RelValue { get; set; }
+
+        [NotMapped]
+        public decimal? Rel {
+            get => (decimal?)RelValue;
+            set => RelValue = (double?)value;
+        }
 
         [Column("standard")]
         public bool IsStandard { get; set; }
@@ -38,5 +46,13 @@ namespace Elwig.Models {
         [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/PaymentDeliveryPart.cs

@@ -0,0 +1,158 @@
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+namespace Elwig.Models {
+    [Table("payment_delivery_part"), PrimaryKey("Year", "DId", "DPNr", "AvNr")]
+    public class PaymentDeliveryPart {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("did")]
+        public int DId { get; set; }
+
+        [Column("dpnr")]
+        public int DPNr { get; set; }
+
+        [Column("avnr")]
+        public int AvNr { get; set; }
+
+        [Column("mod_abs")]
+        public long ModAbsValue { get; set; }
+        [NotMapped]
+        public decimal ModAbs {
+            get => Variant.Season.DecFromDb(ModAbsValue);
+            set => ModAbsValue = Variant.Season.DecToDb(value);
+        }
+
+        [Column("mod_rel")]
+        public double ModRelValue { get; set; }
+        [NotMapped]
+        public decimal ModRel {
+            get => (decimal)ModRelValue;
+            set => ModRelValue = (double)value;
+        }
+
+        [Column("bucket_1")]
+        public int? Bucket1 { get; set; }
+
+        [Column("bucket_2")]
+        public int? Bucket2 { get; set; }
+
+        [Column("bucket_3")]
+        public int? Bucket3 { get; set; }
+
+        [Column("bucket_4")]
+        public int? Bucket4 { get; set; }
+
+        [Column("bucket_5")]
+        public int? Bucket5 { get; set; }
+
+        [Column("bucket_6")]
+        public int? Bucket6 { get; set; }
+
+        [Column("bucket_7")]
+        public int? Bucket7 { get; set; }
+
+        [Column("bucket_8")]
+        public int? Bucket8 { get; set; }
+
+        [Column("bucket_9")]
+        public int? Bucket9 { get; set; }
+
+        [NotMapped]
+        public int[] Buckets => (new int?[] { Bucket1, Bucket2, Bucket3, Bucket4, Bucket5, Bucket6, Bucket7, Bucket8, Bucket9 })
+            .Where(b => b != null).Select(b => b.Value).ToArray();
+
+        [Column("price_1")]
+        public long? Price1Value { get; set; }
+        [NotMapped]
+        public decimal? Price1 {
+            get => Price1Value != null ? Variant.Season.DecFromDb(Price1Value.Value) : null;
+            set => Price1Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+        }
+
+        [Column("price_2")]
+        public long? Price2Value { get; set; }
+        [NotMapped]
+        public decimal? Price2 {
+			get => Price2Value != null ? Variant.Season.DecFromDb(Price2Value.Value) : null;
+			set => Price2Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_3")]
+        public long? Price3Value { get; set; }
+        [NotMapped]
+        public decimal? Price3 {
+			get => Price3Value != null ? Variant.Season.DecFromDb(Price3Value.Value) : null;
+			set => Price3Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_4")]
+        public long? Price4Value { get; set; }
+        [NotMapped]
+        public decimal? Price4 {
+			get => Price4Value != null ? Variant.Season.DecFromDb(Price4Value.Value) : null;
+			set => Price4Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_5")]
+        public long? Price5Value { get; set; }
+        [NotMapped]
+        public decimal? Price5 {
+			get => Price5Value != null ? Variant.Season.DecFromDb(Price5Value.Value) : null;
+			set => Price5Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_6")]
+        public long? Price6Value { get; set; }
+        [NotMapped]
+        public decimal? Price6 {
+			get => Price6Value != null ? Variant.Season.DecFromDb(Price6Value.Value) : null;
+			set => Price6Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_7")]
+        public long? Price7Value { get; set; }
+        [NotMapped]
+        public decimal? Price7 {
+			get => Price7Value != null ? Variant.Season.DecFromDb(Price7Value.Value) : null;
+			set => Price7Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_8")]
+        public long? Price8Value { get; set; }
+        [NotMapped]
+        public decimal? Price8 {
+			get => Price8Value != null ? Variant.Season.DecFromDb(Price8Value.Value) : null;
+			set => Price8Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("price_9")]
+        public long? Price9Value { get; set; }
+        [NotMapped]
+        public decimal? Price9 {
+			get => Price9Value != null ? Variant.Season.DecFromDb(Price9Value.Value) : null;
+			set => Price9Value = value != null ? Variant.Season.DecToDb(value.Value) : null;
+		}
+
+        [Column("amount")]
+        public long? AmountValue { get; set; }
+        [NotMapped]
+        public decimal? Amount {
+            get => AmountValue != null ? Variant.Season.DecFromDb(AmountValue.Value) : null;
+            set => AmountValue = value != null ? Variant.Season.DecToDb(value.Value) : null;
+        }
+
+        [NotMapped]
+        public decimal[] Prices => (new decimal?[] { Price1, Price2, Price3, Price4, Price5, Price6, Price7, Price8, Price9 })
+            .Where(p => p != null).Select(p => p.Value).ToArray();
+
+        [ForeignKey("Year, AvNr")]
+        public virtual PaymentVar Variant { get; private set; }
+
+        [ForeignKey("Year, DId, DPNr")]
+        public virtual DeliveryPart DeliveryPart { get; private set; }
+    }
+}

Elwig/Models/PaymentMember.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("payment_member"), PrimaryKey("Year", "AvNr", "MgNr")]
+    public class PaymentMember {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("avnr")]
+        public int AvNr { get; set; }
+
+        [Column("mgnr")]
+        public int MgNr { get; set; }
+
+        [Column("amount")]
+        public long AmountValue { get; set; }
+
+        [NotMapped]
+        public decimal Amount {
+            get => Variant.Season.DecFromDb(AmountValue);
+            set => AmountValue = Variant.Season.DecToDb(value);
+        }
+
+        [ForeignKey("Year, AvNr")]
+        public virtual PaymentVar Variant { get; private set; }
+
+        [ForeignKey("MgNr")]
+        public virtual Member Member { get; private set; }
+
+        [InverseProperty("Payment")]
+        public virtual Credit? Credit { get; private set; }
+    }
+}

Elwig/Models/PaymentVar.cs

@@ -0,0 +1,89 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+
+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 => DateOnly.ParseExact(DateString, "yyyy-MM-dd");
+            set => DateString = value.ToString("yyyy-MM-dd");
+        }
+
+        [Column("transfer_date")]
+        public string? TransferDateString { get; set; }
+
+        [NotMapped]
+        public DateOnly? TransferDate {
+            get => TransferDateString != null ? DateOnly.ParseExact(TransferDateString, "yyyy-MM-dd") : null;
+            set => TransferDateString = 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; }
+
+        [NotMapped]
+        public string[] BucketNames => (new string?[] { Bucket1Name, Bucket2Name, Bucket3Name, Bucket4Name, Bucket5Name, Bucket6Name, Bucket7Name, Bucket8Name, Bucket9Name })
+			.Where(n => n != null).Select(n => n ?? "").ToArray();
+
+        [Column("comment")]
+        public string? Comment { get; set; }
+
+        [Column("data")]
+        public string Data { get; set; }
+
+        [ForeignKey("Year")]
+        public virtual Season Season { get; private set; }
+
+        [InverseProperty("Variant")]
+        public virtual ISet<PaymentMember> MemberPayments { get; private set; }
+
+        [InverseProperty("Variant")]
+        public virtual ISet<Credit> Credits { get; private set; }
+    }
+}

Elwig/Models/PostalDest.cs

@@ -2,15 +2,15 @@ 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

@@ -48,6 +48,12 @@ namespace Elwig.Models {
         [InverseProperty("Season")]
         public virtual ISet<Modifier> Modifiers { get; private set; }
 
+        [InverseProperty("Season")]
+        public virtual ISet<PaymentVar> PaymentVariants { get; private set; }
+
+        [InverseProperty("Season")]
+        public virtual ISet<Delivery> Deliveries { get; private set; }
+
         public decimal DecFromDb(long value) {
             return Utils.DecFromDb(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 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

@@ -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

@@ -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/WineOrigin.cs

@@ -1,5 +1,8 @@
 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)]
@@ -18,5 +21,26 @@ namespace Elwig.Models {
 
         [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

@@ -1,26 +0,0 @@
-using Elwig.Helpers;
-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("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; }
-    }
-}

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

@@ -15,5 +15,14 @@ namespace Elwig.Models {
 
         [Column("comment")]
         public string? Comment { get; private set; }
+
+        public string CommentFormat => (Comment != null) ? $" ({Comment})" : "";
+
+        public bool IsRed => Type == "R";
+        public bool IsWhite => Type == "W";
+
+        public override string ToString() {
+            return Name;
+        }
     }
 }

Elwig/Properties/PublishProfiles/FolderProfile.pubxml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <!--
 https://go.microsoft.com/fwlink/?LinkID=208121.
 -->

Elwig/Windows/AdministrationWindow.cs

@@ -1,46 +1,109 @@
 using Elwig.Helpers;
+using Elwig.Models;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
+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 || IsCreating;
+            }
+        }
+        protected bool IsCreating {
+            get { return _isCreating; }
+            set {
+                _isCreating = value;
+                LockContext = IsEditing || IsCreating;
+            }
+        }
+        protected bool DoShowWarningWindows = true;
+        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.FindAllChildren<TextBox>(this, ExemptInputs).ToArray();
-            ComboBoxInputs = Utils.FindAllChildren<ComboBox>(this, ExemptInputs).ToArray();
-            CheckBoxInputs = Utils.FindAllChildren<CheckBox>(this, ExemptInputs).ToArray();
-            RadioButtonInputs = Utils.FindAllChildren<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;
-            ValidateRequiredInputs();
+            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) {
+            if ((IsCreating || IsEditing) && HasChanged) {
+                var r = System.Windows.MessageBox.Show("Soll das Fenster wirklich geschlossen werden?", "Schlie<69>en best<73>tigen",
+                    MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
+                if (r != MessageBoxResult.Yes) {
+                    evt.Cancel = true;
+                    return;
+                }
+            }
+            IsClosing = true;
+        }
+
+        private ComboBox GetPlzOrtInput(TextBox input) {
+            return PlzOrtInputs[Array.IndexOf(PlzInputs, input)];
         }
 
         abstract protected void UpdateButtons();
 
+        protected override async Task OnRenewContext() {
+            for (int i = 0; i < PlzInputs.Length; i++)
+                UpdatePlz(PlzInputs[i], PlzOrtInputs[i]);
+        }
+
         protected void ValidateInput(Control input, bool valid) {
             Valid[input] = valid;
         }
@@ -49,33 +112,58 @@ 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) {
-                    Utils.SetInputInvalid(input);
+                    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;
                 }
             }
         }
 
+        protected void ValidateDefaultValues() {
+            foreach (var input in DefaultValues.Keys) {
+                if (InputIsNotDefault(input))
+                    ControlUtils.SetInputNotDefault(input);
+            }
+        }
+
         protected void LockInputs() {
             foreach (var tb in TextBoxInputs)
                 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)
@@ -87,6 +175,8 @@ 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)
@@ -97,31 +187,83 @@ 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 => Valid.All(kv => kv.Value);
 
+        protected bool GetInputValid(Control input) {
+            return Valid[input];
+        }
+
         protected bool InputHasChanged(Control input) {
             if (!OriginalValues.ContainsKey(input)) {
                 return false;
@@ -129,30 +271,79 @@ 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 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 =>
+            IsEditing && (
                 !IsValid ||
                 TextBoxInputs.Any(InputHasChanged) ||
                 ComboBoxInputs.Any(InputHasChanged) ||
+                CheckComboBoxInputs.Any(InputHasChanged) ||
                 CheckBoxInputs.Any(InputHasChanged) ||
-            RadioButtonInputs.Any(InputHasChanged);
+                RadioButtonInputs.Any(InputHasChanged)
+            ) || IsCreating && (
+                TextBoxInputs.Any(i => InputIsNotDefault(i) || (!i.IsReadOnly && i.Text != "")) ||
+                ComboBoxInputs.Any(i => InputIsNotDefault(i) || (i.IsEnabled && i.SelectedItem != null)) ||
+                CheckComboBoxInputs.Any(i => InputIsNotDefault(i) || i.SelectedItem != null) ||
+                CheckBoxInputs.Any(InputIsNotDefault) ||
+                RadioButtonInputs.Any(InputIsNotDefault)
+            );
 
-        protected void UpdatePlz(TextBox plzInput, bool plzInputValid, ComboBox ortInput) {
+        protected void UpdatePlz(TextBox plzInput, ComboBox ortInput) {
+            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;
-            ortInput.ItemsSource = list;
-            ortInput.SelectedItem = (list != null && item != null && list.Contains(item)) ? item : null;
+            ControlUtils.RenewItemsSource(ortInput, list, i => (i as AT_PlzDest)?.Id);
             if (list != null && ortInput.SelectedItem == null && list.Count == 1)
                 ortInput.SelectedItem = list[0];
-            ComboBox_SelectionChanged(ortInput, new());
+            UpdateComboBox(ortInput);
+        }
+
+        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 bool InputTextChanged(TextBox input) {
+            return InputTextChanged(input, new ValidationResult(true, null));
         }
 
         protected bool InputTextChanged(TextBox input, Func<TextBox, bool, ValidationResult> checker) {
@@ -167,12 +358,14 @@ namespace Elwig.Windows {
             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;
@@ -187,19 +380,21 @@ namespace Elwig.Windows {
         }
 
         protected bool InputLostFocus(TextBox input, ValidationResult res, string? msg = null) {
-            if (!res.IsValid)
-                MessageBox.Show(res.ErrorContent.ToString(), msg ?? res.ErrorContent.ToString(), MessageBoxButton.OK, MessageBoxImage.Warning);
+            if (DoShowWarningWindows && !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();
         }
@@ -207,51 +402,70 @@ 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();
         }
 
-        protected void TextBox_TextChanged(object sender, RoutedEventArgs evt) {
+        protected void TextBox_TextChanged(object sender, RoutedEventArgs? evt) {
             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();
         }
 
+        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 {
+                ValidateInput(input, false);
+                ControlUtils.SetInputInvalid(input);
+            }
+            UpdateButtons();
+        }
+
         protected void ComboBox_SelectionChanged(object sender, RoutedEventArgs evt) {
-            var input = (ComboBox)sender;
-            if (input.ItemsSource != null && input.SelectedItem == null && RequiredInputs.Contains(input)) {
-                ValidateInput(input, false);
-                Utils.SetInputInvalid(input);
-            } else {
-                ValidateInput(input, true);
-                if (InputHasChanged(input)) {
-                    Utils.SetInputChanged(input);
-                } else {
-                    Utils.ClearInputState(input);
-                }
-            }
-            UpdateButtons();
+            UpdateComboBox((Control)sender);
         }
 
         protected void IntegerInput_TextChanged(object sender, RoutedEventArgs evt) {
             InputTextChanged((TextBox)sender, Validator.CheckInteger);
         }
 
+        protected void DecimalInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckDecimal);
+        }
+
         protected void PartialDateInput_TextChanged(object sender, RoutedEventArgs evt) {
             InputTextChanged((TextBox)sender, Validator.CheckPartialDate);
         }
@@ -270,21 +484,23 @@ namespace Elwig.Windows {
 
         protected void PlzInput_TextChanged(object sender, RoutedEventArgs evt) {
             var plz = (TextBox)sender;
-            var valid = InputTextChanged(plz, Validator.CheckPlz);
-            UpdatePlz(plz, valid, Utils.FindNextSibling<ComboBox>(plz));
+            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;
-            var valid = InputLostFocus(plz, Validator.CheckPlz);
-            UpdatePlz(plz, valid, Utils.FindNextSibling<ComboBox>(plz));
+            InputLostFocus(plz, Validator.CheckPlz);
+            if ("PLZ".Equals(plz.Tag))
+                UpdatePlz(plz, GetPlzOrtInput(plz));
         }
 
-        protected void EmailInput_TextChanged(object sender, RoutedEventArgs evt) {
+        protected void EmailAddressInput_TextChanged(object sender, RoutedEventArgs evt) {
             InputTextChanged((TextBox)sender, Validator.CheckEmailAddress);
         }
 
-        protected void EmailInput_LostFocus(object sender, RoutedEventArgs evt) {
+        protected void EmailAddressInput_LostFocus(object sender, RoutedEventArgs evt) {
             InputLostFocus((TextBox)sender, Validator.CheckEmailAddress);
         }
 
@@ -312,12 +528,12 @@ namespace Elwig.Windows {
             InputLostFocus((TextBox)sender, Validator.CheckBic);
         }
 
-        protected void UstIdInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckUstId);
+        protected void UstIdNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckUstIdNr);
         }
 
-        protected void UstIdInput_LostFocus(object sender, RoutedEventArgs evt) {
-            InputLostFocus((TextBox)sender, Validator.CheckUstId);
+        protected void UstIdNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckUstIdNr);
         }
 
         protected void LfbisNrInput_TextChanged(object sender, RoutedEventArgs evt) {

Elwig/Windows/AreaComAdminWindow.xaml

@@ -5,7 +5,8 @@
         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"
+        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
+        Title="Flächenbindungen - Elwig" Height="480" Width="850"
         Loaded="Window_Loaded">
     <Window.Resources>
         <Style TargetType="Label">
@@ -30,6 +31,13 @@
             <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"/>
@@ -39,153 +47,120 @@
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="19"/>
-            <RowDefinition Height="120"/>
-            <RowDefinition Height="190"/>
-            <RowDefinition Height="1*"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="*"/>
         </Grid.RowDefinitions>
         <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="620"/>
-            <ColumnDefinition Width="1*"/>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="330"/>
         </Grid.ColumnDefinitions>
 
-        <Menu Grid.ColumnSpan="3" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
+        <Menu Grid.ColumnSpan="2" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
             <MenuItem Header="Flächenbindugen"/>
         </Menu>
 
-        <Grid Grid.RowSpan="4" Grid.Row="1">
+        <Grid Grid.RowSpan="2" Grid.Row="1" Grid.Column="0">
             <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="120"/>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="125"/>
-                <ColumnDefinition Width="125"/>
+                <ColumnDefinition Width="1*"/>
+                <ColumnDefinition Width="1*"/>
+                <ColumnDefinition Width="1*"/>
             </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">
+                  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="Katastralgemeinde"  Binding="{Binding Kg.Kg.Name}"  Width="5*"/>
+                    <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="1" Grid.Row="1" Grid.RowSpan="1" Margin="5,5,5,5">
+        <GroupBox Header="Vertrag" Grid.Column="2" Grid.Row="1" Grid.RowSpan="1" Margin="5,5,5,5">
             <Grid>
                 <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="60"/>
-                    <ColumnDefinition Width="70"/>
+                    <ColumnDefinition Width="80"/>
+                    <ColumnDefinition Width="*"/>
                     <ColumnDefinition Width="50"/>
-                    <ColumnDefinition Width="100"/>
+                    <ColumnDefinition Width="*"/>
                 </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="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" Margin="0,40,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"/>
+                <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="100" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="YearFromInput_TextChanged"/>
+                <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="100" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
-                         TextChanged="YearToInput_TextChanged"/>
+                <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"/>
+
+                <Label Content="Anmerkung:" Margin="10,130,0,0" Grid.Column="0" Grid.ColumnSpan="2"/>
+                <TextBox x:Name="CommentInput" TextChanged="TextBox_TextChanged"
+                         HorizontalAlignment="Stretch" Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="3"/>
             </Grid>
         </GroupBox>
 
-        <GroupBox Header="Lage" Grid.Column="1" Grid.Row="2" Grid.RowSpan="1" Margin="5,5,5,5">
+        <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="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="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" ItemTemplate="{StaticResource KgTemplate}" TextSearch.TextPath="Name"
-                          Width="200" HorizontalAlignment="Left" SelectionChanged="ComboBox_SelectionChanged"
-                          Margin="0,40,0,0" Grid.Column="1"/>
+                <ComboBox x:Name="RdInput" DisplayMemberPath="Name" TextSearch.TextPath="Name"
+                          HorizontalAlignment="Stretch" Margin="0,40,10,0" 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"
+                <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 (m²):" Margin="10,100,0,0" Grid.Column="0"/>
+                <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="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"/>
-
+                         TextChanged="IntegerInput_TextChanged"/>
             </Grid>
         </GroupBox>
     </Grid>

Elwig/Windows/AreaComAdminWindow.xaml.cs

@@ -1,5 +1,4 @@
 using Microsoft.EntityFrameworkCore;
-using System.Collections.Generic;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
@@ -7,41 +6,31 @@ 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;
-        private bool IsEditing = false;
-        private bool IsCreating = false;
+        private readonly Member Member;
 
-        public AreaComAdminWindow(Member member) {
+        public AreaComAdminWindow(int mgnr) {
             InitializeComponent();
-            this.member = member;
-            Title = $"Flächenbindungen - {member.FamilyName} {member.GivenName} - Elwig";
+            Member = Context.Members.Find(mgnr) ?? throw new ArgumentException("MgNr argument has invalid value");
+            Title = $"Flächenbindungen - {Member.AdministrativeName} - Elwig";
             ExemptInputs = new Control[] {
-                MgNrInput, ContractList, AreaCommitmentList, NewContractButton, DeleteContractButton,
-                ContractSaveButton, ContractCancelButton, NewAreaCommitmentButton, 
+                MgNrInput, AreaCommitmentList, NewAreaCommitmentButton, 
                 EditAreaCommitmentButton, DeleteAreaCommitmentButton, AreaCommitmentSaveButton,
                 AreaCommitmentResetButton, AreaCommitmentCancelButton
             };
             RequiredInputs = new Control[] {
-                VNrInput, YearFromInput, KgInput,
-                GstNrInput, AreaInput, SortInput, CultInput
+                FbNrInput, YearFromInput, KgInput,
+                GstNrInput, AreaInput, AreaComTypeInput, WineCultivationInput
             };
         }
 
-        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 void Window_Loaded(object sender, RoutedEventArgs e) {
+            LockInputs();
         }
 
         private async Task RefreshAreaCommitmentList() {
@@ -49,94 +38,78 @@ namespace Elwig.Windows {
             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<AreaComParcel> parcels = (await Context.AreaCommitments.FindAsync(contract.VNr)).Parcels.ToList();
-
-            AreaCommitmentList.ItemsSource = parcels;
-            if (parcels.Count == 1)
-                AreaCommitmentList.SelectedIndex = 0;
+            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,
+                AreaCommitmentList_SelectionChanged, ControlUtils.RenewSourceDefault.None);
             RefreshInputs();
         }
 
         private void RefreshInputs(bool validate = false) {
             ClearInputStates();
-            Contract? c = (Contract)ContractList.SelectedItem;
-            AreaComParcel? a = (AreaComParcel)AreaCommitmentList.SelectedItem;
-
-            if (c != null) {
-                DeleteContractButton.IsEnabled = true;
-                NewAreaCommitmentButton.IsEnabled = true;
-            } else {
-                DeleteContractButton.IsEnabled = false;
-                NewAreaCommitmentButton.IsEnabled = false;
-            }
-
-            if (a != null) {
+            if (AreaCommitmentList.SelectedItem is AreaCom a) {
                 EditAreaCommitmentButton.IsEnabled = true;
                 DeleteAreaCommitmentButton.IsEnabled = true;
                 FillInputs(a);
             } else {
                 EditAreaCommitmentButton.IsEnabled = false;
                 DeleteAreaCommitmentButton.IsEnabled = false;
-                ClearInputs();
-                MgNrInput.Text = "";
+                ClearOriginalValues();
+                ClearDefaultValues();
+                ClearInputs(validate);
+                ClearInputStates();
             }
-            if (!validate) ClearInputStates();
             GC.Collect();
         }
 
-        private void FillInputs(AreaComParcel a) {
+        private void FillInputs(AreaCom a) {
             ClearOriginalValues();
+            ClearDefaultValues();
 
-            VNrInput.Text = a.VNr.ToString();
-            MgNrInput.Text = a.AreaCom.Contract.MgNr.ToString();
-            YearFromInput.Text = a.AreaCom.Contract.YearFrom.ToString();
-            YearToInput.Text = a.AreaCom.Contract.YearTo.ToString();
+            FbNrInput.Text = a.FbNr.ToString();
+            MgNrInput.Text = a.MgNr.ToString();
+            YearFromInput.Text = a.YearFrom.ToString();
+            YearToInput.Text = a.YearTo.ToString();
 
-            KgInput.SelectedItem = a.Kg.Kg;
+            KgInput.SelectedItem = a.Kg.AtKg;
             RdInput.SelectedItem = a.Rd;
             GstNrInput.Text = a.GstNr;
             AreaInput.Text = a.Area.ToString();
 
-            SortInput.SelectedItem = a.AreaCom.WineVar;
-            // FIXME
-            //AttrInput.SelectedItem = a.WineAttr;
-            CultInput.SelectedItem = a.AreaCom.WineCult;
+            AreaComTypeInput.SelectedItem = a.AreaComType;
+            WineCultivationInput.SelectedItem = a.WineCult;
 
-            FillOriginalValues();
+            CommentInput.Text = a.Comment;
+
+            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 OnRenewContext() {
+            await base.OnRenewContext();
+            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;
-            ContractList.IsEnabled = false;
             HideAreaCommitmentNewEditDeleteButtons();
             ShowAreaCommitmentSaveResetCancelButtons();
-            DisableContractNewDeleteButtons();
             UnlockInputs();
-            VNrInput.IsReadOnly = true;
-            YearFromInput.IsReadOnly = true;
-            YearToInput.IsReadOnly = true;
             InitInputs();
         }
 
@@ -146,21 +119,19 @@ namespace Elwig.Windows {
 
             IsEditing = true;
             AreaCommitmentList.IsEnabled = false;
-            ContractList.IsEnabled = false;
 
             HideAreaCommitmentNewEditDeleteButtons();
             ShowAreaCommitmentSaveResetCancelButtons();
-            DisableContractNewDeleteButtons();
             UnlockInputs();
         }
 
         private async void DeleteAreaCommitmentButton_Click(object sender, RoutedEventArgs evt) {
-            AreaComParcel a = (AreaComParcel)AreaCommitmentList.SelectedItem;
+            AreaCom a = (AreaCom)AreaCommitmentList.SelectedItem;
             if (a == null) return;
 
             var r = MessageBox.Show(
-                $"Soll die Parzelle {a.GstNr} ({a.Area} m²) wirklich unwiderruflich gelöscht werden?",
-                "Parzelle löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
+                $"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();
@@ -168,86 +139,45 @@ namespace Elwig.Windows {
             }
         }
 
-        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(
-                $"Soll der Vertrag {c.VNr} und alle enthaltenen Parzellen wirklich unwiderruflich gelöscht werden?",
-                "Vertrag löschen", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
-            if (r == MessageBoxResult.Yes) {
-                Context.Remove(c);
-                Context.SaveChanges();
-                await RefreshContractList();
-            }
-        }
-
-        private async Task<Contract> UpdateContract(Contract c) {
-            int newVNr = int.Parse(VNrInput.Text);
-            c.MgNr = int.Parse(MgNrInput.Text);
-            c.YearFrom = int.Parse(YearFromInput.Text);
-            c.YearTo = (YearToInput.Text == "") ? null : int.Parse(YearToInput.Text);
-
-            EntityEntry<Contract>? tr = null;
-            try {
-                if (IsEditing) {
-                    tr = Context.Update(c);
-                } else if (IsCreating) {
-                    c.VNr = newVNr;
-                    tr = (await Context.AddAsync(c));
-                }
-                await Context.SaveChangesAsync();
-
-                if (newVNr != c.VNr) {
-                    await Context.Database.ExecuteSqlAsync($"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<AreaComParcel> UpdateaAreaComParcel(AreaComParcel a) {
-            a.VNr = int.Parse(VNrInput.Text);
+        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 = ((WbRd)RdInput.SelectedItem).RdNr;
+            a.RdNr = RdInput.SelectedItem.GetType() == typeof(NullItem) ? null : ((WbRd)RdInput.SelectedItem).RdNr;
             a.GstNr = GstNrInput.Text;
             a.Area = int.Parse(AreaInput.Text);
-            a.AreaCom.SortId = ((WineVar)SortInput.SelectedItem).SortId;
-            // FIXME
-            //a.AttrId = ((WineAttr)AttrInput.SelectedItem).AttrId;
-            a.AreaCom.CultId = ((WineCult)CultInput.SelectedItem).CultId;
+            a.VtrgId = (AreaComTypeInput.SelectedItem as AreaComType)?.VtrgId;
+            a.CultId = (WineCultivationInput.SelectedItem as WineCult)?.CultId;
+            a.Comment = (CommentInput.Text == "") ? null : CommentInput.Text;
 
-            EntityEntry<AreaComParcel>? tr = null;
+            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) await tr.ReloadAsync();
+                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);
@@ -257,20 +187,14 @@ namespace Elwig.Windows {
         }
 
         private async void AreaCommitmentSaveButton_Click(object sender, RoutedEventArgs evt) {
-            Contract c = await UpdateContract((Contract)ContractList.SelectedItem);
-            AreaComParcel a = await UpdateaAreaComParcel(IsEditing ? (AreaComParcel)AreaCommitmentList.SelectedItem : Context.CreateProxy<AreaComParcel>());
-
+            AreaCom a = await UpdateAreaCom(IsEditing ? (AreaCom)AreaCommitmentList.SelectedItem : Context.CreateProxy<AreaCom>());
             IsEditing = false;
             IsCreating = false;
             AreaCommitmentList.IsEnabled = true;
-            ContractList.IsEnabled = true;
             HideAreaCommitmentSaveResetCancelButtons();
             ShowAreaCommitmentNewEditDeleteButtons();
-            EnableContractNewDeleteButtons();
             LockInputs();
-            await RefreshContractList();
             await RefreshAreaCommitmentList();
-            ContractList.SelectedItem = c;
             AreaCommitmentList.SelectedItem = a;
         }
 
@@ -287,41 +211,8 @@ namespace Elwig.Windows {
             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>());
-            AreaComParcel a = await UpdateaAreaComParcel(Context.CreateProxy<AreaComParcel>());
-
-            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();
@@ -330,26 +221,8 @@ namespace Elwig.Windows {
         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 Context.NextVNr()).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;
+            AreaCommitmentSaveButton.IsEnabled = (ch && v);
         }
 
         private void DisableAreaCommitmentNewEditDeleteButtons() {
@@ -359,37 +232,11 @@ namespace Elwig.Windows {
         }
 
         private void EnableAreaCommitmentNewEditDeleteButtons() {
-            NewAreaCommitmentButton.IsEnabled = ContractList.SelectedItem != null;
+            NewAreaCommitmentButton.IsEnabled = true;
             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;
@@ -422,49 +269,40 @@ namespace Elwig.Windows {
             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();
+        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, Contract?, ValidationResult> checker) {
-            InputTextChanged(input, checker(input, SenderIsRequired(input), Context, (Contract)ContractList.SelectedItem));
+        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, Contract?, ValidationResult> checker, string? msg = null) {
-            InputLostFocus(input, checker(input, SenderIsRequired(input), Context, (Contract)ContractList.SelectedItem), msg);
+        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 NumericInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckInteger);
+        private void FbNrInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckFbNr);
         }
 
-        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.CheckInteger);
-        }
-
-        private void YearToInput_TextChanged(object sender, RoutedEventArgs evt) {
-            InputTextChanged((TextBox)sender, Validator.CheckInteger);
+        private void FbNrInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckFbNr);
         }
         
         private void GstNrInput_TextChanged(object sender, RoutedEventArgs evt) {
@@ -474,9 +312,5 @@ namespace Elwig.Windows {
         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.CheckInteger);
-        }
     }
 }

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 +1,347 @@
+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 OnRenewContext() {
+            await base.OnRenewContext();
+            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))) {
+                if (mod.ModId == null) continue;
+                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 : 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) {
+            // DecimalInput_TextChanged(sender, evt); FIXME '-' is ignored
+            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) {
+            // DecimalInput_TextChanged(sender, evt); FIXME '-' is ignored
+            if ((!IsEditing && !IsCreating) || SeasonModifierList.SelectedItem is not Modifier mod || SeasonList.SelectedItem is not Season s) return;
+            ModifiersChanged = ModifiersChanged || (SeasonModifierAbsInput.Text ?? "") != ((SeasonModifierList.SelectedItem as Modifier)?.Abs?.ToString() ?? "");
+            if (ModifierUpdate) return;
+            // FIXME ValueStr does not work in ModifierList when modifier is newly created
+            mod.AbsValue = decimal.TryParse(SeasonModifierAbsInput.Text, out var v) ? Utils.DecToDb(v, s.Precision) : null;
+            if (mod.AbsValue != 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 +1,749 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text.Json.Nodes;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using Elwig.Helpers;
+using Elwig.Helpers.Billing;
+using Elwig.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+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 = JsonNode.Parse(paymentVar.Data).AsObject();
+
+            var auszahlungsSorten = data["AuszahlungSorten"]?.AsObject();
+            if (auszahlungsSorten == null) {
+                return;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"]?.AsArray();
+
+            if (Graphs == null) {
+                return;
+            }
+
+            List<Graph> GraphsList = new();
+
+            int i = 1;
+            foreach (var graph in Graphs) {
+                GraphsList.Add(new Graph("Oe", i, graph?.AsObject(), 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(JsonObject auszahlungsSorten, int num) {
+            List<string> contracts = new();
+
+            foreach (var sorte in auszahlungsSorten) {
+                if (sorte.Key == "Kurven") continue;
+                foreach (var attribut in sorte.Value.AsObject()) {
+                    foreach (var bindung in attribut.Value.AsObject()) {
+                        if ((int)bindung.Value.AsValue() == num) {
+                            contracts.Add($"{sorte.Key}/{attribut.Key}/{bindung.Key}");
+                        }
+                    }
+                }
+            }
+
+            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 = JsonNode.Parse(paymentVar.Data).AsObject();
+
+            var auszahlungsSorten = data["AuszahlungSorten"]?.AsObject();
+            if (auszahlungsSorten == null) {
+                return false;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"]?.AsObject();
+            if (Graphs == null) {
+                return false;
+            }
+
+            int i = 1;
+            foreach (var graph in Graphs) {
+                if (i == num) {
+                    Graphs.Remove(graph.Key);
+                    break;
+                }
+                i++;
+            }
+
+            foreach (var sorte in auszahlungsSorten) {
+                if (sorte.Key == "Kurven") continue;
+                foreach (var attribut in sorte.Value.AsObject()) {
+                    var bindungen = attribut.Value.AsObject();
+                    foreach (var bindung in bindungen) {
+                        int v = (int)bindung.Value;
+                        if (v == num - 1) {
+                            bindungen.Remove(bindung.Key);
+                        } else if (v > num - 1) {
+                            bindungen[bindung.Key] = v - 1;
+                        }
+                    }
+                }
+            }
+
+            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 OnRenewContext() {
+            await base.OnRenewContext();
+            await RefreshGraphList();
+        }
+
+        private void InitPlot() {
+            OechslePricePlotScatter = OechslePricePlot.Plot.AddScatter(Graph.DataX, Graph.DataY);
+
+            OechslePricePlot.Configuration.DoubleClickBenchmark = false;
+            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();
+
+                    if (IsEditing || IsCreating) 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]);
+            SaveButton.IsEnabled = true;
+            ResetButton.IsEnabled = true;
+        }
+
+        private void RightFlatButton_Click(object sender, RoutedEventArgs evt) {
+            if (PrimaryMarkedPointIndex == -1) {
+                return;
+            }
+            FlattenGraph(PrimaryMarkedPointIndex, Graph.DataY.Length - 1, Graph.DataY[PrimaryMarkedPointIndex]);
+            SaveButton.IsEnabled = true;
+            ResetButton.IsEnabled = true;
+        }
+
+        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
+            }
+            SaveButton.IsEnabled = true;
+            ResetButton.IsEnabled = true;
+        }
+
+        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);
+            SaveButton.IsEnabled = true;
+            ResetButton.IsEnabled = true;
+        }
+
+        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 = JsonNode.Parse(paymentVar.Data).AsObject();
+
+            var auszahlungsSorten = data["AuszahlungSorten"];
+            if (auszahlungsSorten == null) {
+                return null;
+            }
+
+            var Graphs = auszahlungsSorten["Kurven"].AsArray();
+            if (Graphs == null) {
+                return null;
+            }
+
+            if (IsEditing) {
+                Graphs[g.Num - 1] = g.ToJson();
+            } else if(IsCreating) {
+                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

@@ -1,19 +1,53 @@
 using Elwig.Helpers;
-using System.ComponentModel;
+using System;
+using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Threading;
 
 namespace Elwig.Windows {
     public abstract class ContextWindow : Window {
 
-        protected readonly AppDbContext Context;
+        public static readonly int RenewSec = 10;
+
+        protected AppDbContext Context { get; private set; }
+        protected bool LockContext { get; set; } = false;
+
+        private readonly DispatcherTimer _timer;
+        private bool _renewPending = false;
 
         public ContextWindow() : base() {
+            _timer = new DispatcherTimer();
+            _timer.Tick += new EventHandler(OnShouldRenewContext);
+            _timer.Interval = new TimeSpan(0, 0, RenewSec);
+            _timer.Start();
             Context = new();
+            Loaded += OnLoaded;
         }
 
-        protected override void OnClosing(CancelEventArgs evt) {
-            Context.Dispose();
-            base.OnClosing(evt);
+        private async void OnShouldRenewContext(object? sender, EventArgs evt) {
+            if (!Context.HasBackendChanged) return;
+            _renewPending = true;
+            if (LockContext) return;
+            await RenewContext();
         }
+
+        private void OnLoaded(object sender, RoutedEventArgs evt) {
+            OnRenewContext().GetAwaiter().GetResult();
+        }
+
+        protected override void OnClosed(EventArgs evt) {
+            base.OnClosed(evt);
+            Context.Dispose();
+        }
+
+        protected async Task RenewContext() {
+            if (!_renewPending) return;
+            Context.Dispose();
+            Context = new();
+            await OnRenewContext();
+            _renewPending = false;
+        }
+
+        abstract protected Task OnRenewContext();
     }
 }