Dashboard und Schnellnavigation fix

LehrerApp.Desktop/Views/Students/DocumentationDialog.axaml

@@ -13,10 +13,10 @@
         <TextBlock Text="{Binding DialogTitle}" Classes="dialogtitle"/>
 
         <StackPanel Spacing="4" IsVisible="{Binding CanPickStudent}">
-          <TextBlock Text="Schüler *" FontSize="12" Opacity="0.7"/>
+          <TextBlock Text="Bezug *" FontSize="12" Opacity="0.7"/>
           <ComboBox ItemsSource="{Binding StudentOptions}" SelectedItem="{Binding SelectedStudent}"
                     DisplayMemberBinding="{Binding Name}" HorizontalAlignment="Stretch"
-                    PlaceholderText="Schüler wählen"/>
+                    PlaceholderText="Schüler oder gesamte Lerngruppe wählen"/>
           <TextBlock Text="{Binding StudentError}" Foreground="Red" FontSize="11"
                      IsVisible="{Binding StudentError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
         </StackPanel>

LehrerApp.Desktop/Views/Students/GroupDocumentationQuickDialog.axaml

@@ -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.Students"
+        x:Class="LehrerApp.Desktop.Views.Students.GroupDocumentationQuickDialog"
+        x:DataType="vm:GroupDocumentationQuickViewModel"
+        Title="Lerngruppen-Eintrag" Width="480" SizeToContent="Height"
+        CanResize="False" WindowStartupLocation="CenterOwner">
+  <Grid RowDefinitions="*,Auto" Margin="24">
+    <StackPanel Spacing="12">
+      <TextBlock Text="Lerngruppen-Eintrag" Classes="dialogtitle"/>
+      <TextBlock Text="Planung, Klausur oder Erinnerung für eine ganze Lerngruppe festhalten."
+                 TextWrapping="Wrap" Opacity="0.7"/>
+      <StackPanel Spacing="4">
+        <TextBlock Text="Lerngruppe *" FontSize="12" Opacity="0.7"/>
+        <ComboBox ItemsSource="{Binding Groups}" SelectedItem="{Binding SelectedGroup}"
+                  DisplayMemberBinding="{Binding DisplayName}" PlaceholderText="Lerngruppe wählen"/>
+        <TextBlock Text="{Binding GroupError}" Foreground="Red" FontSize="11"
+                   IsVisible="{Binding GroupError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+      </StackPanel>
+      <Grid ColumnDefinitions="*,12,140">
+        <StackPanel Spacing="4">
+          <TextBlock Text="Titel *" FontSize="12" Opacity="0.7"/>
+          <TextBox Text="{Binding Title}" PlaceholderText="z. B. Klausur ankündigen"/>
+          <TextBlock Text="{Binding TitleError}" Foreground="Red" FontSize="11"
+                     IsVisible="{Binding TitleError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </StackPanel>
+        <StackPanel Grid.Column="2" Spacing="4">
+          <TextBlock Text="Datum *" FontSize="12" Opacity="0.7"/>
+          <TextBox Text="{Binding DateText}"/>
+          <TextBlock Text="{Binding DateError}" Foreground="Red" FontSize="11"
+                     IsVisible="{Binding DateError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </StackPanel>
+      </Grid>
+      <StackPanel Spacing="4">
+        <TextBlock Text="Notiz" FontSize="12" Opacity="0.7"/>
+        <TextBox Text="{Binding Content}" AcceptsReturn="True" Height="90" TextWrapping="Wrap"/>
+      </StackPanel>
+    </StackPanel>
+    <StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Right" Spacing="8" Margin="0,20,0,0">
+      <Button Content="Abbrechen" Click="OnCancel"/>
+      <Button Content="Speichern" Classes="accent" Click="OnSave"/>
+    </StackPanel>
+  </Grid>
+</Window>

LehrerApp.Desktop/Views/Students/GroupDocumentationQuickDialog.axaml.cs

@@ -0,0 +1,19 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using LehrerApp.Desktop.ViewModels.Students;
+
+namespace LehrerApp.Desktop.Views.Students;
+
+public partial class GroupDocumentationQuickDialog : Window
+{
+    public GroupDocumentationQuickDialog() => InitializeComponent();
+
+    private void OnSave(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is not GroupDocumentationQuickViewModel vm) return;
+        vm.SaveCommand.Execute(null);
+        if (vm.Result is not null) Close(true);
+    }
+
+    private void OnCancel(object? sender, RoutedEventArgs e) => Close(false);
+}