MainWindow: Cleanup and move parts to TestWindow

Elwig/Documents/CreditNote.cshtml

@@ -0,0 +1,86 @@
+@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>
+    <div class="date">@Model.Location, am @($"{Model.Date:dd.MM.yyyy}")</div>
+    <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 +1,39 @@
+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;
+            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/Document.cshtml.cs

@@ -49,6 +49,8 @@ namespace Elwig.Documents {
                 name = "BusinessLetter";
             } else if (this is DeliveryNote) {
                 name = "DeliveryNote";
+            } else if (this is CreditNote) {
+                name = "CreditNote";
             } else {
                 throw new InvalidOperationException("Invalid document object");
             }

Elwig/Documents/Html.cs

@@ -18,6 +18,7 @@ namespace Elwig.Documents {
             await e.CompileTemplateAsync("BusinessDocument");
             await e.CompileTemplateAsync("BusinessLetter");
             await e.CompileTemplateAsync("DeliveryNote");
+            await e.CompileTemplateAsync("CreditNote");
 
             Engine = e;
             evtHandler();

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/Helpers/AppDbContext.cs

@@ -44,6 +44,7 @@ namespace Elwig.Helpers {
         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);

Elwig/Helpers/Billing/Transaction.cs

@@ -21,12 +21,9 @@ namespace Elwig.Helpers.Billing {
         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.MemberPayments
-                .OrderBy(m => m.MgNr)
-                .Select(m => {
-                    var amt = Math.Round(dict.GetValueOrDefault(m.MgNr, 0), 2);
-                    return new Transaction(m.Member, m.Amount - amt, m.Variant.Season.CurrencyCode, m.TgNr ?? 0);
-                })
+            return variant.Credits
+                .OrderBy(c => c.MgNr)
+                .Select(c => new Transaction(c.Member, c.Amount, variant.Season.CurrencyCode, c.TgNr))
                 .ToList();
         }
 

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/DeliveryPart.cs

@@ -30,15 +30,10 @@ 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")]
@@ -107,6 +102,10 @@ namespace Elwig.Models {
         [NotMapped]
         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/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

@@ -2,7 +2,7 @@ using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
-    [Table("payment_member"), PrimaryKey("Year", "AvNr", "MgNr"), Index("Year", "TgNr", IsUnique = true)]
+    [Table("payment_member"), PrimaryKey("Year", "AvNr", "MgNr")]
     public class PaymentMember {
         [Column("year")]
         public int Year { get; set; }
@@ -16,9 +16,6 @@ namespace Elwig.Models {
         [Column("amount")]
         public long AmountValue { get; set; }
 
-        [Column("tgnr")]
-        public int? TgNr { get; set; }
-
         [NotMapped]
         public decimal Amount {
             get => Variant.Season.DecFromDb(AmountValue);
@@ -30,5 +27,8 @@ namespace Elwig.Models {
 
         [ForeignKey("MgNr")]
         public virtual Member Member { get; private set; }
+
+        [InverseProperty("Payment")]
+        public virtual Credit? Credit { get; private set; }
     }
 }

Elwig/Models/PaymentVar.cs

@@ -2,6 +2,7 @@ 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")]
@@ -66,6 +67,10 @@ namespace Elwig.Models {
         [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; }
 
@@ -77,5 +82,8 @@ namespace Elwig.Models {
 
         [InverseProperty("Variant")]
         public virtual ISet<PaymentMember> MemberPayments { get; private set; }
+
+        [InverseProperty("Variant")]
+        public virtual ISet<Credit> Credits { get; private set; }
     }
 }

Elwig/Windows/MainWindow.xaml

@@ -23,7 +23,7 @@
                 <MenuItem Header="Über"/>
             </MenuItem>
         </Menu>
-        <Grid Height="100" VerticalAlignment="Top" Margin="0,25,0,0">
+        <Grid Height="100" VerticalAlignment="Top" Margin="25,25,0,0">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="100"/>
                 <ColumnDefinition Width="*"/>
@@ -40,24 +40,18 @@
 
         <Button x:Name="MemberAdminButton" Content="Mitglieder" Click="MemberAdminButton_Click"
                 Margin="50,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
-        <Button x:Name="MemberListButton" Content="Mitgliederliste" Click="MemberListButton_Click"
-                Margin="50,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
         <Button x:Name="ReceiptButton" Content="Übernahme" Click="ReceiptButton_Click"
-                Margin="50,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+                Margin="50,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
         <Button x:Name="DeliveryAdminButton" Content="Lieferungen" Click="DeliveryAdminButton_Click"
+                Margin="50,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="PaymentWindowButton" Content="Auszahlung" Click="PaymentWindowButton_Click"
                 Margin="50,280,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
-        <Button x:Name="DeliveryListButton" Content="Lieferungungen" Click="DeliveryListButton_Click" IsEnabled="False"
+        <Button x:Name="BaseDataButton" Content="Stammdaten" Click="BaseDataButton_Click"
                 Margin="50,320,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
 
-        <Button x:Name="BaseDataButton" Content="Stammdaten" Click="BaseDataButton_Click"
-                Margin="260,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
-        <Button x:Name="PdfButton" Content="PDF Erzeugen" Click="PdfButton_Click" Tag="Print"
-                Margin="260,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
         <Button x:Name="TestWindowButton" Content="Test Fenster" Click="TestWindowButton_Click"
-                Margin="260,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
-        <Button x:Name="QueryWindowButton" Content="Datenbankabfragen" Click="QueryWindowButton_Click"
                 Margin="260,280,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
-        <Button x:Name="PaymentWindowButton" Content="Auszahlung" Click="PaymentWindowButton_Click"
+        <Button x:Name="QueryWindowButton" Content="Datenbankabfragen" Click="QueryWindowButton_Click"
                 Margin="260,320,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
     </Grid>
 </Window>

Elwig/Windows/MainWindow.xaml.cs

@@ -1,9 +1,4 @@
-using System.Linq;
 using System.Windows;
-using System.Windows.Input;
-using Elwig.Documents;
-using Elwig.Helpers;
-using Microsoft.EntityFrameworkCore;
 
 namespace Elwig.Windows {
     public partial class MainWindow : Window {
@@ -12,9 +7,7 @@ namespace Elwig.Windows {
             InitializeComponent();
         }
 
-        private void Window_Loaded(object sender, RoutedEventArgs evt) {
-            PdfButton.IsEnabled = App.IsPrintingReady;
-        }
+        private void Window_Loaded(object sender, RoutedEventArgs evt) { }
 
         private void MemberAdminButton_Click(object sender, RoutedEventArgs evt) {
             var w = new MemberAdminWindow();
@@ -40,15 +33,6 @@ namespace Elwig.Windows {
             // TODO
         }
 
-        private async void PdfButton_Click(object sender, RoutedEventArgs evt) {
-            Mouse.OverrideCursor = Cursors.Wait;
-            using var ctx = new AppDbContext();
-            using var doc = new DeliveryNote(await ctx.Deliveries.OrderBy(d => d.Parts.Count).ThenBy(d => d.Year).ThenBy(d => d.DId).LastAsync(), ctx);
-            await doc.Generate();
-            doc.Show();
-            Mouse.OverrideCursor = null;
-        }
-
         private void TestWindowButton_Click(object sender, RoutedEventArgs evt) {
             var w = new TestWindow();
             w.Show();

Elwig/Windows/TestWindow.xaml

@@ -5,7 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:Elwig.Windows"
         xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
-        Title="Test Fenster - Elwig" MinHeight="400" MinWidth="325" Height="450" Width="800" ResizeMode="CanResize">
+        Title="Test Fenster - Elwig" MinHeight="400" MinWidth="325" Height="450" Width="800" ResizeMode="CanResize" Loaded="Window_Loaded">
     <Grid>
         <xctk:CheckComboBox x:Name="MyComboBox" HorizontalAlignment="Left" Margin="216,186,0,0" VerticalAlignment="Top" Delimiter=", "
                             SelectedValue="{Binding SelectedValue}"
@@ -18,5 +18,10 @@
         <TextBlock x:Name="Output" Height="20" Width="200" Margin="470,329,0,0"  HorizontalAlignment="Left" VerticalAlignment="Top"/>
         <Button x:Name="ChartButton" Content="Chart" Click="ChartButton_Click"
                 Margin="50,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+
+        <Button x:Name="PdfDeliveryButton" Content="Lieferschein Erzeugen" Click="PdfDeliveryButton_Click" Tag="Print"
+                Margin="260,190,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <Button x:Name="PdfCreditButton" Content="Gutschrift Erzeugen" Click="PdfCreditButton_Click" Tag="Print"
+                Margin="260,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
     </Grid>
 </Window>

Elwig/Windows/TestWindow.xaml.cs

@@ -1,16 +1,26 @@
+using Elwig.Documents;
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
 using System;
 using System.Linq;
 using System.Windows;
+using System.Windows.Input;
 using Xceed.Wpf.Toolkit.Primitives;
 
 namespace Elwig.Windows {
     public partial class TestWindow : Window {
+
         public TestWindow() {
             InitializeComponent();
             MyComboBox.ItemsSource = new string[] { "Klasse A" , "Klasse B", "Klasse C", "Klasse D", "Klasse E", "Klasse F" };
             MyListBox.ItemsSource = new string[] { "Test 1", "Test 2", "Test 3", "Test 4" };
         }
 
+        private void Window_Loaded(object sender, RoutedEventArgs evt) {
+            PdfDeliveryButton.IsEnabled = App.IsPrintingReady;
+            PdfCreditButton.IsEnabled = App.IsPrintingReady;
+        }
+
         private void OnItemSelectionChanged(object sender, ItemSelectionChangedEventArgs e) {
             MyText.Text = string.Join(", ", MyComboBox.SelectedItems.Cast<string>());
         }
@@ -39,5 +49,23 @@ namespace Elwig.Windows {
             var w = new ChartWindow();
             w.Show();
         }
+
+        private async void PdfDeliveryButton_Click(object sender, RoutedEventArgs evt) {
+            Mouse.OverrideCursor = Cursors.Wait;
+            using var ctx = new AppDbContext();
+            using var doc = new DeliveryNote(await ctx.Deliveries.OrderBy(d => d.Parts.Count).ThenBy(d => d.Year).ThenBy(d => d.DId).LastAsync(), ctx);
+            await doc.Generate();
+            doc.Show();
+            Mouse.OverrideCursor = null;
+        }
+
+        private async void PdfCreditButton_Click(object sender, RoutedEventArgs evt) {
+            Mouse.OverrideCursor = Cursors.Wait;
+            using var ctx = new AppDbContext();
+            using var doc = new CreditNote(await ctx.Credits.FirstAsync(), ctx);
+            await doc.Generate();
+            doc.Show();
+            Mouse.OverrideCursor = null;
+        }
     }
 }