"Vorgang": Fallmappe für Klassenbuch- und Dokumentationseinträge

Neuer 4. Tab in der Klassenlehreransicht: bündelt Titel, Beschreibung, Schlagwörter, verknüpfte Dokumentation und angeheftete (eingefrorene) WebUntis-Klassenbucheinträge zu einem laufenden Problem mit einer/einem oder mehreren Schüler*innen. Anheften direkt aus dem Klassenbuch-Tab per Rechtsklick. Sync-fähig nach dem bestehenden Documentation-Muster. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-01 22:42:06 +02:00
parent 987b49e761
commit 15463bc292
23 changed files with 1191 additions and 5 deletions
@@ -0,0 +1,187 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.ClassTeacher"
+             xmlns:svm="clr-namespace:LehrerApp.Desktop.ViewModels.Students"
+             x:Class="LehrerApp.Desktop.Views.ClassTeacher.ClassTeacherCasesView"
+             x:DataType="vm:ClassTeacherCasesViewModel">
+
+  <UserControl.Styles>
+    <Style Selector="Border.statusPill">
+      <Setter Property="CornerRadius" Value="10"/>
+      <Setter Property="Padding" Value="8,2"/>
+    </Style>
+    <Style Selector="Border.statusPill.open">
+      <Setter Property="Background" Value="#FB8C00"/>
+    </Style>
+    <Style Selector="Border.statusPill.closed">
+      <Setter Property="Background" Value="#43A047"/>
+    </Style>
+    <Style Selector="Border.statusPill TextBlock">
+      <Setter Property="Foreground" Value="White"/>
+      <Setter Property="FontSize" Value="11"/>
+      <Setter Property="FontWeight" Value="SemiBold"/>
+    </Style>
+  </UserControl.Styles>
+
+  <Grid RowDefinitions="Auto,Auto,*" Margin="16" RowSpacing="10">
+    <Grid Grid.Row="0" ColumnDefinitions="*,Auto,Auto">
+      <StackPanel Grid.Column="0">
+        <TextBlock Text="Vorgänge" FontSize="22" FontWeight="SemiBold"/>
+        <TextBlock Text="Fallmappen für laufende Probleme mit einer/einem oder mehreren Schüler*innen der Klasse"
+                   FontSize="12" Opacity="0.55"/>
+      </StackPanel>
+      <CheckBox Grid.Column="1" Content="Nur offene" IsChecked="{Binding OnlyOpen}"
+                VerticalAlignment="Center" Margin="0,0,12,0"/>
+      <Button Grid.Column="2" Content="＋ Vorgang" Command="{Binding AddVorgangCommand}"/>
+    </Grid>
+
+    <TextBlock Grid.Row="1" Text="{Binding Status}" FontSize="11" Opacity="0.6"/>
+
+    <ScrollViewer Grid.Row="2">
+      <StackPanel>
+        <ItemsControl ItemsSource="{Binding Cases}">
+          <ItemsControl.ItemTemplate>
+            <DataTemplate DataType="vm:VorgangItem">
+              <Border Background="{DynamicResource AppCardBackgroundBrush}"
+                      BorderBrush="{DynamicResource AppCardBorderBrush}" BorderThickness="1"
+                      CornerRadius="8" Padding="12,10" Margin="0,0,0,8">
+                <StackPanel Spacing="8">
+                  <Grid ColumnDefinitions="*,Auto,Auto,Auto,Auto,Auto">
+                    <StackPanel Grid.Column="0">
+                      <StackPanel Orientation="Horizontal" Spacing="8">
+                        <Border Classes="statusPill" Classes.open="{Binding IsOpen}" Classes.closed="{Binding !IsOpen}">
+                          <TextBlock Text="{Binding StatusLabel}"/>
+                        </Border>
+                        <TextBlock Text="{Binding Model.Title}" FontWeight="SemiBold" FontSize="14"/>
+                      </StackPanel>
+                      <TextBlock Text="{Binding StudentNames}" FontSize="12" Opacity="0.7" Margin="0,2,0,0"/>
+                      <ItemsControl ItemsSource="{Binding TagChips}">
+                        <ItemsControl.ItemsPanel>
+                          <ItemsPanelTemplate><WrapPanel ItemSpacing="6" LineSpacing="4"/></ItemsPanelTemplate>
+                        </ItemsControl.ItemsPanel>
+                        <ItemsControl.ItemTemplate>
+                          <DataTemplate DataType="svm:TagChip">
+                            <Border Background="{Binding ColorHex}" CornerRadius="10" Padding="8,2" Margin="0,4,0,0">
+                              <TextBlock Text="{Binding Text}" FontSize="10" Foreground="White"/>
+                            </Border>
+                          </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                      </ItemsControl>
+                    </StackPanel>
+                    <StackPanel Grid.Column="1" Orientation="Horizontal">
+                      <Button Content="Details anzeigen" FontSize="11" Padding="8,3"
+                              Command="{Binding RevealCommand}" IsVisible="{Binding !IsRevealed}"/>
+                      <Button Content="Details ausblenden" FontSize="11" Padding="8,3"
+                              Command="{Binding RevealCommand}" IsVisible="{Binding IsRevealed}"/>
+                    </StackPanel>
+                    <Button Grid.Column="2" Content="Bearbeiten" FontSize="11" Padding="8,3"
+                            Command="{Binding $parent[ItemsControl].((vm:ClassTeacherCasesViewModel)DataContext).EditVorgangCommand}"
+                            CommandParameter="{Binding}"/>
+                    <StackPanel Grid.Column="3" Orientation="Horizontal">
+                      <Button Content="Schließen" FontSize="11" Padding="8,3" IsVisible="{Binding IsOpen}"
+                              Command="{Binding $parent[ItemsControl].((vm:ClassTeacherCasesViewModel)DataContext).ToggleStatusCommand}"
+                              CommandParameter="{Binding}"/>
+                      <Button Content="Wieder öffnen" FontSize="11" Padding="8,3" IsVisible="{Binding !IsOpen}"
+                              Command="{Binding $parent[ItemsControl].((vm:ClassTeacherCasesViewModel)DataContext).ToggleStatusCommand}"
+                              CommandParameter="{Binding}"/>
+                    </StackPanel>
+                    <Button Grid.Column="4" Content="Löschen" FontSize="11" Padding="8,3"
+                            Command="{Binding $parent[ItemsControl].((vm:ClassTeacherCasesViewModel)DataContext).DeleteVorgangCommand}"
+                            CommandParameter="{Binding}"/>
+                  </Grid>
+
+                  <StackPanel Spacing="10" IsVisible="{Binding IsRevealed}" Margin="0,4,0,0">
+                    <TextBlock Text="{Binding Model.Description}" FontSize="12" TextWrapping="Wrap" Opacity="0.85"
+                               IsVisible="{Binding Model.Description, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+
+                    <StackPanel Spacing="4">
+                      <TextBlock Text="Verknüpfte Dokumentation" FontSize="12" FontWeight="SemiBold" Opacity="0.7"/>
+                      <ItemsControl ItemsSource="{Binding LinkedDocumentation}">
+                        <ItemsControl.ItemTemplate>
+                          <DataTemplate DataType="svm:DocumentationItem">
+                            <Grid ColumnDefinitions="70,*,Auto,Auto" Margin="0,2">
+                              <TextBlock Grid.Column="0" Text="{Binding DateDisplay}" FontSize="11" Opacity="0.5"/>
+                              <StackPanel Grid.Column="1">
+                                <StackPanel Orientation="Horizontal" Spacing="6">
+                                  <TextBlock Text="{Binding StudentName}" FontSize="12" FontWeight="SemiBold"/>
+                                  <TextBlock Text="{Binding Model.Title}" FontSize="12" IsVisible="{Binding IsRevealed}"/>
+                                  <TextBlock Text="Vertraulich" FontSize="12" Opacity="0.6" IsVisible="{Binding !IsRevealed}"/>
+                                </StackPanel>
+                                <TextBlock Text="{Binding TypeLabel}" FontSize="10" Opacity="0.5"/>
+                              </StackPanel>
+                              <Button Grid.Column="2" Content="Anzeigen" FontSize="10" Padding="6,2" Margin="0,0,4,0"
+                                      Command="{Binding RevealCommand}" IsVisible="{Binding !IsRevealed}"/>
+                              <Button Grid.Column="3" Content="Entfernen" FontSize="10" Padding="6,2"
+                                      Command="{Binding $parent[ItemsControl].((vm:VorgangItem)DataContext).UnlinkCommand}"
+                                      CommandParameter="{Binding}"/>
+                            </Grid>
+                          </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                      </ItemsControl>
+                      <TextBlock Text="Noch keine Dokumentation verknüpft." FontSize="11" Opacity="0.5"
+                                 IsVisible="{Binding !HasLinkedDocumentation}"/>
+                      <Button Content="＋ Neue Dokumentation anlegen" FontSize="11" Padding="8,3"
+                              HorizontalAlignment="Left"
+                              Command="{Binding $parent[ItemsControl].((vm:ClassTeacherCasesViewModel)DataContext).CreateAndLinkDocumentationCommand}"
+                              CommandParameter="{Binding}"/>
+                    </StackPanel>
+
+                    <StackPanel Spacing="4" IsVisible="{Binding HasAvailableDocumentation}">
+                      <TextBlock Text="Bestehende Dokumentation der Schüler*innen verknüpfen" FontSize="12"
+                                 FontWeight="SemiBold" Opacity="0.7"/>
+                      <ItemsControl ItemsSource="{Binding AvailableDocumentation}">
+                        <ItemsControl.ItemTemplate>
+                          <DataTemplate DataType="svm:DocumentationItem">
+                            <Grid ColumnDefinitions="70,*,Auto,Auto" Margin="0,2">
+                              <TextBlock Grid.Column="0" Text="{Binding DateDisplay}" FontSize="11" Opacity="0.5"/>
+                              <StackPanel Grid.Column="1">
+                                <StackPanel Orientation="Horizontal" Spacing="6">
+                                  <TextBlock Text="{Binding StudentName}" FontSize="12" FontWeight="SemiBold"/>
+                                  <TextBlock Text="{Binding Model.Title}" FontSize="12" IsVisible="{Binding IsRevealed}"/>
+                                  <TextBlock Text="Vertraulich" FontSize="12" Opacity="0.6" IsVisible="{Binding !IsRevealed}"/>
+                                </StackPanel>
+                                <TextBlock Text="{Binding TypeLabel}" FontSize="10" Opacity="0.5"/>
+                              </StackPanel>
+                              <Button Grid.Column="2" Content="Anzeigen" FontSize="10" Padding="6,2" Margin="0,0,4,0"
+                                      Command="{Binding RevealCommand}" IsVisible="{Binding !IsRevealed}"/>
+                              <Button Grid.Column="3" Content="Verknüpfen" FontSize="10" Padding="6,2"
+                                      Command="{Binding $parent[ItemsControl].((vm:VorgangItem)DataContext).LinkCommand}"
+                                      CommandParameter="{Binding}"/>
+                            </Grid>
+                          </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                      </ItemsControl>
+                    </StackPanel>
+
+                    <StackPanel Spacing="4">
+                      <TextBlock Text="Angeheftete Klassenbucheinträge" FontSize="12" FontWeight="SemiBold" Opacity="0.7"/>
+                      <ItemsControl ItemsSource="{Binding ClassRegisterRows}">
+                        <ItemsControl.ItemTemplate>
+                          <DataTemplate DataType="vm:VorgangClassRegisterEntryRow">
+                            <Grid ColumnDefinitions="70,*,Auto" Margin="0,2">
+                              <TextBlock Grid.Column="0" Text="{Binding DateLabel}" FontSize="11" Opacity="0.5"/>
+                              <StackPanel Grid.Column="1">
+                                <TextBlock Text="{Binding StudentName}" FontSize="12" FontWeight="SemiBold"/>
+                                <TextBlock Text="{Binding SummaryLabel}" FontSize="11" Opacity="0.7" TextWrapping="Wrap"/>
+                              </StackPanel>
+                              <Button Grid.Column="2" Content="Entfernen" FontSize="10" Padding="6,2"
+                                      Command="{Binding $parent[ItemsControl].((vm:VorgangItem)DataContext).RemoveClassRegisterEntryCommand}"
+                                      CommandParameter="{Binding}"/>
+                            </Grid>
+                          </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                      </ItemsControl>
+                      <TextBlock Text="Noch keine Klassenbucheinträge angeheftet — im Klassenbuch-Tab über „→ Vorgang&#8220; möglich."
+                                 FontSize="11" Opacity="0.5" IsVisible="{Binding !HasClassRegisterRows}" TextWrapping="Wrap"/>
+                    </StackPanel>
+                  </StackPanel>
+                </StackPanel>
+              </Border>
+            </DataTemplate>
+          </ItemsControl.ItemTemplate>
+        </ItemsControl>
+        <TextBlock Text="Keine Vorgänge." Classes="emptyhint" IsVisible="{Binding !HasCases}"/>
+      </StackPanel>
+    </ScrollViewer>
+  </Grid>
+</UserControl>
@@ -0,0 +1,63 @@
+using Avalonia.Controls;
+using LehrerApp.Core.Interfaces;
+using LehrerApp.Core.Models;
+using LehrerApp.Desktop.ViewModels.ClassTeacher;
+using LehrerApp.Desktop.ViewModels.Students;
+using LehrerApp.Desktop.Views.Shared;
+using LehrerApp.Desktop.Views.Students;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace LehrerApp.Desktop.Views.ClassTeacher;
+
+public partial class ClassTeacherCasesView : UserControl
+{
+    public ClassTeacherCasesView() => InitializeComponent();
+
+    protected override void OnDataContextChanged(EventArgs e)
+    {
+        base.OnDataContextChanged(e);
+        if (DataContext is not ClassTeacherCasesViewModel vm) return;
+        vm.OnEditVorgang = ShowVorgangDialog;
+        vm.OnConfirmDeleteVorgang = ShowDeleteVorgangDialog;
+        vm.OnEditDocumentation = ShowDocumentationDialog;
+    }
+
+    private async Task<Vorgang?> ShowVorgangDialog(List<StudentOption> rosterStudents, Vorgang? editing)
+    {
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is null) return null;
+
+        var vm = new VorgangDialogViewModel(rosterStudents, editing);
+        var dialog = new VorgangDialog { DataContext = vm };
+        var saved = await dialog.ShowDialog<bool>(owner);
+        return saved ? vm.Result : null;
+    }
+
+    private async Task<bool> ShowDeleteVorgangDialog(VorgangItem item)
+    {
+        var info = new ConfirmDialogInfo
+        {
+            Title       = "Vorgang löschen?",
+            Message     = $"\"{item.Model.Title}\" wird als gelöscht markiert und nicht mehr angezeigt. " +
+                          "Verknüpfte Dokumentation bleibt erhalten.",
+            ConfirmText = "Löschen",
+        };
+        var dialog = new ConfirmDialog { DataContext = info };
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        return owner is not null && await dialog.ShowDialog<bool>(owner);
+    }
+
+    private async Task<Documentation?> ShowDocumentationDialog(
+        Guid defaultStudentId, List<StudentOption> studentOptions, Documentation? editing)
+    {
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is null) return null;
+
+        var vm = new DocumentationDialogViewModel(defaultStudentId, editing,
+            App.Services.GetRequiredService<IAttachmentStorage>(), studentOptions);
+        var dialog = new DocumentationDialog { DataContext = vm };
+        var saved = await dialog.ShowDialog<bool>(owner);
+        if (!saved) vm.DiscardUnsavedAttachments();
+        return saved ? vm.Result : null;
+    }
+}
@@ -507,6 +507,9 @@
      <ContentPage Header="Fehlzeiten">
        <views:ClassTeacherAbsencesView DataContext="{Binding DetailsTab}"/>
      </ContentPage>
+      <ContentPage Header="Vorgänge">
+        <views:ClassTeacherCasesView DataContext="{Binding CasesTab}"/>
+      </ContentPage>
    </TabbedPage>
  </Grid>
 </UserControl>
@@ -62,8 +62,8 @@
    <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
      <StackPanel>
        <TextBlock Text="Klassenbuch" FontSize="22" FontWeight="SemiBold"/>
-        <TextBlock Text="Einträge anderer Lehrkräfte – nur zur Ansicht" FontSize="12" Opacity="0.55"
-                   IsVisible="{Binding !ShowOwnDocumentation}"/>
+        <TextBlock Text="Einträge anderer Lehrkräfte – nur zur Ansicht. Rechtsklick auf einen Eintrag heftet ihn an einen Vorgang an."
+                   FontSize="12" Opacity="0.55" IsVisible="{Binding !ShowOwnDocumentation}"/>
        <TextBlock Text="Eigene Dokumentation zu Schüler*innen dieser Klasse" FontSize="12" Opacity="0.55"
                   IsVisible="{Binding ShowOwnDocumentation}"/>
      </StackPanel>
@@ -147,7 +147,8 @@
    </Border>

    <Grid Grid.Row="4" IsVisible="{Binding !ShowOwnDocumentation}">
-      <DataGrid ItemsSource="{Binding Entries}" AutoGenerateColumns="False" IsReadOnly="True"
+      <DataGrid ItemsSource="{Binding Entries}" SelectedItem="{Binding SelectedEntry, Mode=TwoWay}"
+                AutoGenerateColumns="False" IsReadOnly="True"
                GridLinesVisibility="Horizontal" BorderBrush="{DynamicResource AppCardBorderBrush}" BorderThickness="1"
                CanUserResizeColumns="True" CanUserSortColumns="True" RowHeight="46">
        <DataGrid.Columns>
@@ -159,6 +160,12 @@
          <DataGridTextColumn Header="Gruppe" Binding="{Binding CategoryGroup}" Width="0.8*"/>
          <DataGridTextColumn Header="Eintrag" Binding="{Binding Text}" Width="2*"/>
        </DataGrid.Columns>
+        <DataGrid.ContextMenu>
+          <ContextMenu>
+            <MenuItem Header="→ An Vorgang anheften" Command="{Binding PinToVorgangCommand}"
+                      CommandParameter="{Binding SelectedEntry}"/>
+          </ContextMenu>
+        </DataGrid.ContextMenu>
      </DataGrid>
      <StackPanel IsVisible="{Binding !HasEntries}" HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="5">
        <TextBlock Text="Keine Klassenbucheinträge im gewählten Zeitraum" FontWeight="SemiBold"/>
@@ -19,6 +19,21 @@ public partial class ClassTeacherRegisterView : UserControl
        if (DataContext is not ClassTeacherDetailsViewModel vm) return;
        vm.OnEditOwnDocumentation = ShowDocumentationDialog;
        vm.OnConfirmDeleteOwnDocumentation = ShowDeleteDocumentationDialog;
+        vm.OnPickVorgangForPin = ShowPinToVorgangDialog;
+    }
+
+    private async Task<PinToVorgangChoice?> ShowPinToVorgangDialog(ClassTeacherClassRegisterRow row)
+    {
+        if (DataContext is not ClassTeacherDetailsViewModel vm) return null;
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is null) return null;
+
+        var summary = $"{row.DateLabel} · {row.StudentDisplayName} · {row.CategoryName}";
+        var matchingCases = vm.OpenCasesFor(row.StudentName);
+        var dialogVm = new PinToVorgangDialogViewModel(summary, matchingCases);
+        var dialog = new PinToVorgangDialog { DataContext = dialogVm };
+        var confirmed = await dialog.ShowDialog<bool>(owner);
+        return confirmed ? dialogVm.Result : null;
    }

    private async Task<Documentation?> ShowDocumentationDialog(
@@ -0,0 +1,44 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.ClassTeacher"
+        x:Class="LehrerApp.Desktop.Views.ClassTeacher.PinToVorgangDialog"
+        x:DataType="vm:PinToVorgangDialogViewModel"
+        Title="An Vorgang anheften"
+        Width="420" SizeToContent="Height" MinHeight="260"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="*,Auto" Margin="24">
+    <StackPanel Grid.Row="0" Spacing="12">
+      <TextBlock Text="An Vorgang anheften" Classes="dialogtitle"/>
+      <TextBlock Text="{Binding RowSummary}" FontSize="12" Opacity="0.6" TextWrapping="Wrap"/>
+
+      <StackPanel Spacing="4" IsVisible="{Binding HasMatchingOpenCases}">
+        <TextBlock Text="Bestehenden offenen Vorgang wählen" FontSize="12" Opacity="0.7"/>
+        <ComboBox ItemsSource="{Binding MatchingOpenCases}" SelectedItem="{Binding SelectedCase}"
+                  HorizontalAlignment="Stretch">
+          <ComboBox.ItemTemplate>
+            <DataTemplate x:DataType="vm:VorgangItem">
+              <TextBlock Text="{Binding Model.Title}"/>
+            </DataTemplate>
+          </ComboBox.ItemTemplate>
+        </ComboBox>
+      </StackPanel>
+
+      <TextBlock Text="— oder —" FontSize="11" Opacity="0.5" HorizontalAlignment="Center"
+                 IsVisible="{Binding HasMatchingOpenCases}"/>
+
+      <StackPanel Spacing="4">
+        <TextBlock Text="Neuen Vorgang anlegen mit Titel" FontSize="12" Opacity="0.7"/>
+        <TextBox Text="{Binding NewTitle}" PlaceholderText="z.B. Schuleschwänzen"/>
+      </StackPanel>
+
+      <TextBlock Text="{Binding Error}" Foreground="Red" FontSize="11"
+                 IsVisible="{Binding Error, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+    </StackPanel>
+
+    <Grid Grid.Row="1" ColumnDefinitions="*,8,*" Margin="0,20,0,0">
+      <Button Grid.Column="0" Content="Abbrechen" HorizontalAlignment="Stretch" Click="OnCancel"/>
+      <Button Grid.Column="2" Content="Anheften" HorizontalAlignment="Stretch" Click="OnConfirm"/>
+    </Grid>
+  </Grid>
+</Window>
@@ -0,0 +1,21 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using LehrerApp.Desktop.ViewModels.ClassTeacher;
+
+namespace LehrerApp.Desktop.Views.ClassTeacher;
+
+public partial class PinToVorgangDialog : Window
+{
+    public PinToVorgangDialog() => InitializeComponent();
+
+    private void OnConfirm(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is PinToVorgangDialogViewModel vm)
+        {
+            vm.ConfirmCommand.Execute(null);
+            if (vm.Result is not null) Close(true);
+        }
+    }
+
+    private void OnCancel(object? sender, RoutedEventArgs e) => Close(false);
+}
@@ -0,0 +1,80 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.ClassTeacher"
+        x:Class="LehrerApp.Desktop.Views.ClassTeacher.VorgangDialog"
+        x:DataType="vm:VorgangDialogViewModel"
+        Title="{Binding DialogTitle}"
+        Width="480" SizeToContent="Height" MinHeight="360"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="*,Auto" Margin="24">
+    <ScrollViewer Grid.Row="0">
+      <StackPanel Spacing="12">
+        <TextBlock Text="{Binding DialogTitle}" Classes="dialogtitle"/>
+
+        <StackPanel Spacing="4">
+          <TextBlock Text="Titel *" FontSize="12" Opacity="0.7"/>
+          <TextBox Text="{Binding Title}"/>
+          <TextBlock Text="{Binding TitleError}" Foreground="Red" FontSize="11"
+                     IsVisible="{Binding TitleError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </StackPanel>
+
+        <StackPanel Spacing="4">
+          <TextBlock Text="Beschreibung" FontSize="12" Opacity="0.7"/>
+          <TextBox Text="{Binding Description}" AcceptsReturn="True" Height="90" TextWrapping="Wrap"
+                    PlaceholderText="Worum geht es? Was ist bisher passiert?"/>
+        </StackPanel>
+
+        <StackPanel Spacing="6">
+          <TextBlock Text="Schlagwörter" FontSize="12" Opacity="0.7"/>
+          <ItemsControl ItemsSource="{Binding Tags}">
+            <ItemsControl.ItemsPanel>
+              <ItemsPanelTemplate><WrapPanel ItemSpacing="6" LineSpacing="6"/></ItemsPanelTemplate>
+            </ItemsControl.ItemsPanel>
+            <ItemsControl.ItemTemplate>
+              <DataTemplate>
+                <Border Background="{DynamicResource SystemControlBackgroundBaseMediumBrush}"
+                        CornerRadius="10" Padding="8,3">
+                  <StackPanel Orientation="Horizontal" Spacing="5">
+                    <TextBlock Text="{Binding}" FontSize="11"/>
+                    <Button Content="×" FontSize="11" Padding="0" Background="Transparent"
+                            Command="{Binding $parent[ItemsControl].((vm:VorgangDialogViewModel)DataContext).RemoveTagCommand}"
+                            CommandParameter="{Binding}"/>
+                  </StackPanel>
+                </Border>
+              </DataTemplate>
+            </ItemsControl.ItemTemplate>
+          </ItemsControl>
+          <Grid ColumnDefinitions="*,8,Auto">
+            <AutoCompleteBox Grid.Column="0" Text="{Binding NewTag}"
+                              ItemsSource="{Binding TagSuggestions}"
+                              FilterMode="Contains" MinimumPrefixLength="0"
+                              PlaceholderText="Schlagwort (z.B. Absentismus)"/>
+            <Button Grid.Column="2" Content="＋" Command="{Binding AddTagCommand}"/>
+          </Grid>
+        </StackPanel>
+
+        <StackPanel Spacing="4">
+          <TextBlock Text="Betroffene Schüler*innen *" FontSize="12" Opacity="0.7"/>
+          <ItemsControl ItemsSource="{Binding StudentOptions}">
+            <ItemsControl.ItemsPanel>
+              <ItemsPanelTemplate><WrapPanel/></ItemsPanelTemplate>
+            </ItemsControl.ItemsPanel>
+            <ItemsControl.ItemTemplate>
+              <DataTemplate x:DataType="vm:VorgangStudentOption">
+                <CheckBox Content="{Binding Name}" IsChecked="{Binding IsSelected}" Margin="0,2,14,2"/>
+              </DataTemplate>
+            </ItemsControl.ItemTemplate>
+          </ItemsControl>
+          <TextBlock Text="{Binding StudentsError}" Foreground="Red" FontSize="11"
+                     IsVisible="{Binding StudentsError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </StackPanel>
+      </StackPanel>
+    </ScrollViewer>
+
+    <Grid Grid.Row="1" ColumnDefinitions="*,8,*" Margin="0,20,0,0">
+      <Button Grid.Column="0" Content="Abbrechen" HorizontalAlignment="Stretch" Click="OnCancel"/>
+      <Button Grid.Column="2" Content="Speichern" HorizontalAlignment="Stretch" Click="OnSave"/>
+    </Grid>
+  </Grid>
+</Window>
@@ -0,0 +1,21 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using LehrerApp.Desktop.ViewModels.ClassTeacher;
+
+namespace LehrerApp.Desktop.Views.ClassTeacher;
+
+public partial class VorgangDialog : Window
+{
+    public VorgangDialog() => InitializeComponent();
+
+    private void OnSave(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is VorgangDialogViewModel vm)
+        {
+            vm.SaveCommand.Execute(null);
+            if (vm.Result is not null) Close(true);
+        }
+    }
+
+    private void OnCancel(object? sender, RoutedEventArgs e) => Close(false);
+}