Notenverwaltung (Kapitel 2) und Mitarbeits-Assistent

Notenübersicht der Gruppe (Matrix, Gesamt-Spalte, Sortierung, Halbjahresfilter), Einzelnoten-Pflege samt Sammelerfassung, Gewichtungsschema mit Voreinstellung je Gruppentyp, Zeugnisnoten-Berechnung mit Übersteuern/Festschreiben/Export und Notenentwicklung im Schülerdetail. Dazu Anwesenheits-/Hausaufgaben-Tracking je Mitarbeit-Sitzung, ein neuer Mitarbeits-Assistent (Zeitleiste mit Abschnitten, automatischer Notenvorschlag, Zusammenzug zur Halbjahresnote) und eine Dashboard-Kachel für offene Entschuldigungen. Außerdem: verbliebene englische Begriffe in Auswahlfeldern und Buttons auf Deutsch umgestellt.
2026-08-12 19:19:22 +02:00
parent a1e722ace1
commit febcb0855a
34 changed files with 2503 additions and 39 deletions
@@ -167,6 +167,39 @@
          </StackPanel>
        </Border>

+        <!-- Offene Entschuldigungen: neben dem Kalender, ebenfalls feste Position -->
+        <Border Grid.Column="1" Grid.Row="1" Margin="8,0,0,8" VerticalAlignment="Top"
+                Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
+                CornerRadius="8" Padding="16">
+          <StackPanel>
+            <TextBlock Text="OFFENE ENTSCHULDIGUNGEN" FontSize="11" FontWeight="Bold"
+                       Opacity="0.5" Margin="0,0,0,10"/>
+            <ItemsControl ItemsSource="{Binding OpenExcuses}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate DataType="vm:OpenExcuseItem">
+                  <Grid ColumnDefinitions="*,Auto,Auto" Margin="0,4">
+                    <StackPanel Grid.Column="0">
+                      <TextBlock Text="{Binding StudentName}" FontSize="13" FontWeight="SemiBold"
+                                 TextTrimming="CharacterEllipsis"/>
+                      <TextBlock FontSize="11" Opacity="0.6">
+                        <Run Text="{Binding GroupName}"/>
+                        <Run Text=" · "/>
+                        <Run Text="{Binding DateDisplay}"/>
+                      </TextBlock>
+                    </StackPanel>
+                    <Button Grid.Column="1" Content="Entschuldigt" FontSize="11" Padding="7,3"
+                            Command="{Binding MarkExcusedCommand}" Margin="0,0,4,0"/>
+                    <Button Grid.Column="2" Content="Unentschuldigt" FontSize="11" Padding="7,3"
+                            Command="{Binding MarkUnexcusedCommand}"/>
+                  </Grid>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            <TextBlock Text="Keine offenen Entschuldigungen." Opacity="0.4" FontSize="13"
+                       IsVisible="{Binding !OpenExcuses.Count}"/>
+          </StackPanel>
+        </Border>
+
        <!-- Meine Lerngruppen: wächst mit der Zeit, deshalb ganz unten und volle Breite -->
        <Border Grid.Column="0" Grid.Row="2" Grid.ColumnSpan="2"
                Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
@@ -0,0 +1,51 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
+        x:Class="LehrerApp.Desktop.Views.Groups.CollectiveGradeDialog"
+        x:DataType="vm:CollectiveGradeDialogViewModel"
+        Title="Sammelnote erfassen"
+        Width="480" Height="640" MinWidth="400" MinHeight="360"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="24">
+
+    <TextBlock Grid.Row="0" Text="Sammelnote erfassen" FontSize="18" FontWeight="SemiBold"/>
+
+    <StackPanel Grid.Row="1" Spacing="6" Margin="0,12,0,10">
+      <Grid ColumnDefinitions="120,*,90" ColumnSpacing="6">
+        <ComboBox Grid.Column="0" ItemsSource="{x:Static vm:GradeCategoryDisplay.Options}"
+                  SelectedItem="{Binding CategoryName}"/>
+        <TextBox Grid.Column="1" Text="{Binding DateText}" PlaceholderText="TT.MM.JJJJ"/>
+        <NumericUpDown Grid.Column="2" Value="{Binding Weight}" Minimum="0" Maximum="10"
+                       Increment="0.1" FormatString="0.#" ShowButtonSpinner="False"
+                       ToolTip.Tip="Gewichtung"/>
+      </Grid>
+      <TextBox Text="{Binding Note}" PlaceholderText="Notiz (z.B. Hausaufgabenkontrolle)"/>
+      <TextBlock Text="{Binding ValidationMessage}" Foreground="Red" FontSize="12"
+                 IsVisible="{Binding ValidationMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+      <TextBlock Text="Werte pro Schüler unten eintragen. Leere Felder werden nicht gespeichert."
+                 FontSize="11" Opacity="0.5" TextWrapping="Wrap"/>
+    </StackPanel>
+
+    <ScrollViewer Grid.Row="2">
+      <ItemsControl ItemsSource="{Binding Rows}">
+        <ItemsControl.ItemTemplate>
+          <DataTemplate x:DataType="vm:CollectiveGradeStudentRow">
+            <Grid ColumnDefinitions="*,100" Margin="0,3">
+              <TextBlock Grid.Column="0" Text="{Binding Name}" VerticalAlignment="Center" FontSize="13"/>
+              <TextBox Grid.Column="1" Text="{Binding Value}" PlaceholderText="Wert"/>
+            </Grid>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </ScrollViewer>
+
+    <Grid Grid.Row="3" ColumnDefinitions="*,Auto,Auto" Margin="0,16,0,0">
+      <TextBlock Grid.Column="0" Text="{Binding StatusMessage}" Foreground="Green" FontSize="12"
+                 VerticalAlignment="Center"
+                 IsVisible="{Binding StatusMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+      <Button Grid.Column="1" Content="Speichern" Command="{Binding SaveAllCommand}" Margin="0,0,8,0"/>
+      <Button Grid.Column="2" Content="Fertig" Click="OnClose"/>
+    </Grid>
+  </Grid>
+</Window>
@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace LehrerApp.Desktop.Views.Groups;
+
+public partial class CollectiveGradeDialog : Window
+{
+    public CollectiveGradeDialog() => InitializeComponent();
+
+    private void OnClose(object? sender, RoutedEventArgs e) => Close();
+}
@@ -0,0 +1,40 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
+             x:Class="LehrerApp.Desktop.Views.Groups.GradeOverviewTabView"
+             x:DataType="vm:GradeOverviewTabViewModel">
+
+  <Grid RowDefinitions="Auto,*">
+
+    <StackPanel Grid.Row="0" Orientation="Horizontal" Spacing="8" Margin="0,0,0,8">
+      <TextBlock Text="Zeitraum:" VerticalAlignment="Center"/>
+      <ComboBox ItemsSource="{Binding PeriodOptions}" SelectedItem="{Binding SelectedPeriod}" MinWidth="170"/>
+
+      <ToggleButton Content="Punkte anzeigen" IsChecked="{Binding ShowAsPoints}"
+                    IsVisible="{Binding CanTogglePointsView}" Margin="12,0,0,0"/>
+
+      <Button Content="Sortierung: Name" Command="{Binding SortByNameCommand}" Margin="12,0,0,0"/>
+      <Button Content="Sortierung: Gesamt" Command="{Binding SortByTotalCommand}"/>
+
+      <Button Content="Noten verwalten" Command="{Binding ManageStudentGradesCommand}" Margin="12,0,0,0"
+              IsVisible="{Binding SelectedRow, Converter={x:Static ObjectConverters.IsNotNull}}"/>
+      <Button Content="＋ Sammelnote" Command="{Binding CollectiveGradeCommand}"/>
+      <Button Content="Zeugnisnoten" Command="{Binding ReportGradesCommand}"/>
+    </StackPanel>
+
+    <DataGrid Grid.Row="1"
+              x:Name="GradesGrid"
+              ItemsSource="{Binding Rows}"
+              SelectedItem="{Binding SelectedRow}"
+              AutoGenerateColumns="False"
+              IsReadOnly="True"
+              GridLinesVisibility="All"
+              CanUserReorderColumns="False"
+              CanUserResizeColumns="True"/>
+
+    <TextBlock Grid.Row="1" Text="Keine Schüler in dieser Gruppe."
+               HorizontalAlignment="Center" VerticalAlignment="Center"
+               Opacity="0.35" FontSize="14"
+               IsVisible="{Binding !Rows.Count}"/>
+  </Grid>
+</UserControl>
@@ -0,0 +1,107 @@
+using Avalonia.Controls;
+using Avalonia.Data;
+using LehrerApp.Core.Interfaces;
+using LehrerApp.Core.Services;
+using LehrerApp.Desktop.ViewModels.Groups;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace LehrerApp.Desktop.Views.Groups;
+
+public partial class GradeOverviewTabView : UserControl
+{
+    private GradeOverviewTabViewModel? _vm;
+
+    public GradeOverviewTabView() => InitializeComponent();
+
+    protected override void OnDataContextChanged(EventArgs e)
+    {
+        base.OnDataContextChanged(e);
+
+        if (DataContext is GradeOverviewTabViewModel vm)
+        {
+            _vm = vm;
+            vm.OnManageStudentGrades = ShowStudentGradesDialog;
+            vm.OnCollectiveGrade = ShowCollectiveGradeDialog;
+            vm.OnReportGrades = ShowReportGradesDialog;
+            vm.PropertyChanged += (_, pe) =>
+            {
+                if (pe.PropertyName == nameof(GradeOverviewTabViewModel.RebuildColumnsSignal))
+                    BuildColumns();
+            };
+            BuildColumns();
+        }
+    }
+
+    private async Task ShowStudentGradesDialog(GradeOverviewRow row)
+    {
+        var dialogVm = new StudentGradesDialogViewModel(
+            App.Services.GetRequiredService<IGradeRepository>(),
+            row.StudentId, _vm!.GroupId, row.Name);
+
+        var dialog = new StudentGradesDialog { DataContext = dialogVm };
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is not null) await dialog.ShowDialog(owner);
+    }
+
+    private async Task ShowCollectiveGradeDialog()
+    {
+        var dialogVm = new CollectiveGradeDialogViewModel(
+            App.Services.GetRequiredService<IGradeRepository>(),
+            App.Services.GetRequiredService<IStudentRepository>(),
+            _vm!.GroupId);
+
+        var dialog = new CollectiveGradeDialog { DataContext = dialogVm };
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is not null) await dialog.ShowDialog(owner);
+    }
+
+    private async Task ShowReportGradesDialog()
+    {
+        var dialogVm = new ReportGradeDialogViewModel(
+            App.Services.GetRequiredService<IGradeRepository>(),
+            App.Services.GetRequiredService<IExamRepository>(),
+            App.Services.GetRequiredService<IExamResultRepository>(),
+            App.Services.GetRequiredService<IStudentRepository>(),
+            App.Services.GetRequiredService<IGroupMembershipRepository>(),
+            App.Services.GetRequiredService<IGradingSchemeRepository>(),
+            App.Services.GetRequiredService<IReportGradeRepository>(),
+            App.Services.GetRequiredService<GradingService>(),
+            _vm!.GroupId, _vm.GroupType, _vm.GradingSystem, _vm.GroupLabel);
+
+        var dialog = new ReportGradeDialog { DataContext = dialogVm };
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is not null) await dialog.ShowDialog(owner);
+    }
+
+    private void BuildColumns()
+    {
+        var grid = this.FindControl<DataGrid>("GradesGrid");
+        if (grid is null || _vm is null) return;
+
+        grid.Columns.Clear();
+        grid.Columns.Add(new DataGridTextColumn
+        {
+            Header  = "Schüler",
+            Binding = new Binding("Name"),
+            Width   = new DataGridLength(160, DataGridLengthUnitType.Pixel),
+        });
+
+        foreach (var (col, i) in _vm.Columns.Select((c, i) => (c, i)))
+        {
+            var idx = i;
+            grid.Columns.Add(new DataGridTextColumn
+            {
+                Header  = col.Header,
+                Binding = new Binding($"Cells[{idx}]"),
+                Width   = new DataGridLength(120, DataGridLengthUnitType.Pixel),
+            });
+        }
+
+        grid.Columns.Add(new DataGridTextColumn
+        {
+            Header  = "Gesamt",
+            Binding = new Binding("TotalDisplay"),
+            Width   = new DataGridLength(80, DataGridLengthUnitType.Pixel),
+        });
+    }
+}
@@ -151,12 +151,7 @@

      <!-- Tab: Noten -->
      <ContentPage Header="Noten">
-        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
-          <TextBlock Text="Notenübersicht" FontSize="16" Opacity="0.4"
-                     HorizontalAlignment="Center"/>
-          <TextBlock Text="Wird implementiert." FontSize="12" Opacity="0.3"
-                     HorizontalAlignment="Center"/>
-        </StackPanel>
+        <views:GradeOverviewTabView DataContext="{Binding GradeOverviewTab}"/>
      </ContentPage>

      <!-- Tab: Planung -->
@@ -48,7 +48,7 @@
        <DataGridTextColumn Header="Schüler" Binding="{Binding Name}" Width="2*"/>
        <DataGridTextColumn Header="Sitzungen" Binding="{Binding SessionCount}" Width="Auto"/>
        <DataGridTextColumn Header="Ø Bewertung" Binding="{Binding AverageDisplay}" Width="Auto"/>
-        <DataGridTextColumn Header="Trend" Binding="{Binding TrendSymbol}" Width="Auto"/>
+        <DataGridTextColumn Header="Entwicklung" Binding="{Binding TrendSymbol}" Width="Auto"/>
        <DataGridTextColumn Header="Note" Binding="{Binding GradeDisplay}" Width="Auto"/>
      </DataGrid.Columns>
    </DataGrid>
@@ -10,7 +10,7 @@
    <Border Grid.Column="0"
            BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
            BorderThickness="0,0,1,0">
-    <Grid RowDefinitions="Auto,Auto,*">
+    <Grid RowDefinitions="Auto,Auto,Auto,*">

      <StackPanel Grid.Row="0" Orientation="Horizontal" Spacing="6" Margin="10,10,10,6">
        <Button Content="＋ Sitzung" Command="{Binding AddSessionCommand}" HorizontalAlignment="Stretch"/>
@@ -20,7 +20,10 @@
      <Button Grid.Row="1" Content="Ø Mitarbeitsnote" Command="{Binding ComputeGradeCommand}"
              HorizontalAlignment="Stretch" Margin="10,0,10,6"/>

-      <ListBox Grid.Row="2"
+      <Button Grid.Row="2" Content="Mitarbeits-Assistent" Command="{Binding OpenWizardCommand}"
+              HorizontalAlignment="Stretch" Margin="10,0,10,6"/>
+
+      <ListBox Grid.Row="3"
               ItemsSource="{Binding Sessions}"
               SelectedItem="{Binding SelectedSession}"
               BorderThickness="0">
@@ -48,7 +51,7 @@
          <ToggleButton Content="◇ Kompetenzen"
                        IsChecked="{Binding CompetencyTagsVisible}"
                        FontSize="11" Padding="8,3"/>
-          <ToggleButton Content="◈ Schüler-Ratings"
+          <ToggleButton Content="◈ Schüler-Bewertungen"
                        IsChecked="{Binding StudentCompetencyRatingsVisible}"
                        FontSize="11" Padding="8,3"/>
        </StackPanel>
@@ -24,6 +24,7 @@ public partial class ParticipationTabView : UserControl
            vm.OnAddSession = ShowAddSessionDialog;
            vm.OnQuickInput = ShowQuickInputDialog;
            vm.OnComputeGrade = ShowComputeGradeDialog;
+            vm.OnOpenWizard = ShowWizardDialog;
            vm.Aspects.CollectionChanged += (_, _) => BuildColumns();
            vm.PropertyChanged += (_, pe) =>
            {
@@ -60,6 +61,19 @@ public partial class ParticipationTabView : UserControl
            });
        }

+        grid.Columns.Add(new DataGridTemplateColumn
+        {
+            Header       = "HA",
+            Width        = new DataGridLength(50, DataGridLengthUnitType.Pixel),
+            CellTemplate = BuildHomeworkCellTemplate(),
+        });
+        grid.Columns.Add(new DataGridTemplateColumn
+        {
+            Header       = "Anwesenheit",
+            Width        = new DataGridLength(80, DataGridLengthUnitType.Pixel),
+            CellTemplate = BuildAttendanceCellTemplate(),
+        });
+
        // Kompetenz-Spalten (opt-in)
        if (_vm.StudentCompetencyRatingsVisible && _vm.ActiveCompetencyCodes.Count > 0)
        {
@@ -119,6 +133,66 @@ public partial class ParticipationTabView : UserControl
        });
    }

+    private static IDataTemplate BuildHomeworkCellTemplate()
+    {
+        return new FuncDataTemplate<ParticipationStudentRow>((row, _) =>
+        {
+            if (row is null) return new TextBlock();
+
+            var btn = new Button
+            {
+                Content = "HA vergessen",
+                FontSize = 10,
+                Padding = new Avalonia.Thickness(5, 1),
+                Opacity = row.HomeworkMissing ? 1.0 : 0.25,
+                Command = row.ToggleHomeworkCommand,
+            };
+            ToolTip.SetTip(btn, "Hausaufgaben vergessen (an/aus)");
+            row.PropertyChanged += (_, pe) =>
+            {
+                if (pe.PropertyName == nameof(ParticipationStudentRow.HomeworkMissing))
+                    btn.Opacity = row.HomeworkMissing ? 1.0 : 0.25;
+            };
+            return new StackPanel
+            {
+                HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center,
+                VerticalAlignment   = Avalonia.Layout.VerticalAlignment.Center,
+                Children = { btn },
+            };
+        });
+    }
+
+    private static IDataTemplate BuildAttendanceCellTemplate()
+    {
+        return new FuncDataTemplate<ParticipationStudentRow>((row, _) =>
+        {
+            if (row is null) return new TextBlock();
+
+            var btn = new Button
+            {
+                Content = string.IsNullOrEmpty(row.AttendanceLabel) ? "anwesend" : row.AttendanceLabel,
+                FontSize = 10,
+                Padding = new Avalonia.Thickness(5, 1),
+                Command = row.CycleAttendanceCommand,
+            };
+            ToolTip.SetTip(btn, row.AttendanceTooltip);
+            row.PropertyChanged += (_, pe) =>
+            {
+                if (pe.PropertyName == nameof(ParticipationStudentRow.AttendanceLabel))
+                {
+                    btn.Content = string.IsNullOrEmpty(row.AttendanceLabel) ? "anwesend" : row.AttendanceLabel;
+                    ToolTip.SetTip(btn, row.AttendanceTooltip);
+                }
+            };
+            return new StackPanel
+            {
+                HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center,
+                VerticalAlignment   = Avalonia.Layout.VerticalAlignment.Center,
+                Children = { btn },
+            };
+        });
+    }
+
    private static string AspectShortcut(int i) => i switch
    {
        0 => "Q", 1 => "W", 2 => "E", 3 => "R", 4 => "T", _ => ""
@@ -163,4 +237,24 @@ public partial class ParticipationTabView : UserControl
        if (owner is not null)
            await dialog.ShowDialog(owner);
    }
+
+    private async Task ShowWizardDialog(ParticipationTabViewModel tabVm)
+    {
+        var dialogVm = new ParticipationWizardDialogViewModel(
+            App.Services.GetRequiredService<IParticipationSessionRepository>(),
+            App.Services.GetRequiredService<IParticipationRepository>(),
+            App.Services.GetRequiredService<IParticipationAspectRepository>(),
+            App.Services.GetRequiredService<IParticipationSectionRepository>(),
+            App.Services.GetRequiredService<IStudentRepository>(),
+            App.Services.GetRequiredService<IExamRepository>(),
+            App.Services.GetRequiredService<IExamResultRepository>(),
+            App.Services.GetRequiredService<IGradeRepository>(),
+            App.Services.GetRequiredService<GradingService>(),
+            tabVm.GroupId, tabVm.SchoolYear, tabVm.GradingSystem, tabVm.GroupLabel);
+
+        var dialog = new ParticipationWizardDialog { DataContext = dialogVm };
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is not null)
+            await dialog.ShowDialog(owner);
+    }
 }
@@ -0,0 +1,160 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
+        x:Class="LehrerApp.Desktop.Views.Groups.ParticipationWizardDialog"
+        x:DataType="vm:ParticipationWizardDialogViewModel"
+        Title="Mitarbeits-Assistent"
+        Width="920" Height="760" MinWidth="720" MinHeight="520"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="Auto,Auto,*,Auto,Auto,Auto" Margin="24">
+
+    <StackPanel Grid.Row="0" Spacing="2">
+      <TextBlock Text="{Binding GroupLabel}" FontSize="13" Opacity="0.5"/>
+      <Grid ColumnDefinitions="Auto,*,Auto">
+        <TextBlock Grid.Column="0" Text="{Binding StudentName}" FontSize="18" FontWeight="SemiBold"/>
+        <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="8">
+          <Button Content="◂ Zurück" Command="{Binding PreviousStudentCommand}"/>
+          <TextBlock Text="{Binding ProgressText}" VerticalAlignment="Center" Opacity="0.6" FontSize="12"/>
+          <Button Content="Weiter ▸" Command="{Binding NextStudentCommand}"/>
+        </StackPanel>
+      </Grid>
+    </StackPanel>
+
+    <TextBlock Grid.Row="1" Text="Zeitleiste" FontSize="13" FontWeight="SemiBold" Margin="0,14,0,6"/>
+
+    <ScrollViewer Grid.Row="2" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
+      <ItemsControl ItemsSource="{Binding Timeline}">
+        <ItemsControl.ItemsPanel>
+          <ItemsPanelTemplate>
+            <StackPanel Orientation="Horizontal" Spacing="10"/>
+          </ItemsPanelTemplate>
+        </ItemsControl.ItemsPanel>
+        <ItemsControl.Styles>
+          <Style Selector="Border.sectionband">
+            <Setter Property="Background" Value="#E1F5EE"/>
+            <Setter Property="BorderThickness" Value="0"/>
+          </Style>
+          <Style Selector="Border.sectionband.open">
+            <Setter Property="Background" Value="Transparent"/>
+            <Setter Property="BorderThickness" Value="1.5"/>
+            <Setter Property="BorderBrush" Value="{DynamicResource SystemControlForegroundBaseMediumBrush}"/>
+          </Style>
+          <Style Selector="Button.haicon">
+            <Setter Property="Opacity" Value="0.2"/>
+          </Style>
+          <Style Selector="Button.haicon.active">
+            <Setter Property="Opacity" Value="1"/>
+            <Setter Property="Background" Value="#E24B4A"/>
+            <Setter Property="Foreground" Value="White"/>
+          </Style>
+          <Style Selector="Button.attendanceicon">
+            <Setter Property="Opacity" Value="0.2"/>
+          </Style>
+          <Style Selector="Button.attendanceicon.active">
+            <Setter Property="Opacity" Value="1"/>
+            <Setter Property="Background" Value="#EF9F27"/>
+            <Setter Property="Foreground" Value="White"/>
+          </Style>
+        </ItemsControl.Styles>
+        <ItemsControl.ItemTemplate>
+          <DataTemplate x:DataType="vm:WizardSectionGroup">
+            <Border Classes="sectionband" Classes.open="{Binding IsOpen}" CornerRadius="6" Padding="8,8" VerticalAlignment="Top">
+              <StackPanel Spacing="6">
+                <TextBlock Text="{Binding BandLabel}" FontSize="10" Opacity="0.6" TextAlignment="Center"/>
+                <ItemsControl ItemsSource="{Binding Points}">
+                  <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                      <StackPanel Orientation="Horizontal" Spacing="8"/>
+                    </ItemsPanelTemplate>
+                  </ItemsControl.ItemsPanel>
+                  <ItemsControl.ItemTemplate>
+                    <DataTemplate x:DataType="vm:WizardTimelinePoint">
+                      <StackPanel Width="54" ToolTip.Tip="{Binding TooltipText}">
+                        <TextBlock Text="{Binding DateDisplay}" FontSize="9" Opacity="0.5" HorizontalAlignment="Center"/>
+
+                        <Border IsVisible="{Binding !IsExam}" Background="{DynamicResource SystemControlBackgroundAccentBrush}"
+                                CornerRadius="3" Padding="4,1" HorizontalAlignment="Center" Margin="0,2">
+                          <TextBlock Text="{Binding RatingLabel}" FontSize="11" Foreground="White" HorizontalAlignment="Center"/>
+                        </Border>
+                        <Border IsVisible="{Binding IsExam}" Background="#7F77DD"
+                                CornerRadius="3" Padding="3,1" HorizontalAlignment="Center" Margin="0,2">
+                          <TextBlock Text="{Binding ExamLabel}" FontSize="9" Foreground="White"
+                                     HorizontalAlignment="Center" TextWrapping="Wrap" TextAlignment="Center"/>
+                        </Border>
+
+                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="2"
+                                    IsVisible="{Binding !IsExam}">
+                          <Button Classes="haicon" Classes.active="{Binding HasHomework}"
+                                  Content="HA" FontSize="8" Padding="3,0" Command="{Binding ToggleHomeworkCommand}"
+                                  ToolTip.Tip="Hausaufgaben vergessen (an/aus)"/>
+                          <Button Classes="attendanceicon" Classes.active="{Binding IsAbsent}"
+                                  Content="{Binding AttendanceButtonLabel}" FontSize="8" Padding="3,0"
+                                  Command="{Binding CycleAttendanceCommand}"
+                                  ToolTip.Tip="{Binding AttendanceTooltip}"/>
+                          <TextBlock Text="💬" FontSize="9" IsVisible="{Binding HasNote}" ToolTip.Tip="Bemerkung"/>
+                        </StackPanel>
+                      </StackPanel>
+                    </DataTemplate>
+                  </ItemsControl.ItemTemplate>
+                </ItemsControl>
+              </StackPanel>
+            </Border>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </ScrollViewer>
+
+    <StackPanel Grid.Row="3" Spacing="4" Margin="0,14,0,0">
+      <TextBlock Text="Abschnittsnoten dieses Schülers" FontSize="13" FontWeight="SemiBold"/>
+      <ItemsControl ItemsSource="{Binding Sections}">
+        <ItemsControl.ItemTemplate>
+          <DataTemplate x:DataType="vm:WizardSectionRow">
+            <Grid ColumnDefinitions="140,170,100,Auto,*" Margin="0,3">
+              <TextBlock Grid.Column="0" Text="{Binding Label}" VerticalAlignment="Center" FontSize="12"/>
+              <TextBlock Grid.Column="1" Text="{Binding RangeDisplay}" VerticalAlignment="Center" FontSize="11" Opacity="0.6"/>
+              <TextBox Grid.Column="2" Text="{Binding Value}" IsEnabled="{Binding !IsOpen}"
+                       PlaceholderText="Note" FontSize="12"/>
+              <Button Grid.Column="3" Content="Speichern" Command="{Binding SaveCommand}"
+                      IsVisible="{Binding !IsOpen}" Margin="6,0,0,0" FontSize="11" Padding="8,3"/>
+              <TextBlock Grid.Column="4" Text="{Binding StatusMessage}" Foreground="Green" FontSize="11"
+                         VerticalAlignment="Center" Margin="8,0,0,0"/>
+            </Grid>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </StackPanel>
+
+    <Grid Grid.Row="4" ColumnDefinitions="*,*" Margin="0,14,0,0">
+      <Border Grid.Column="0" BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+              BorderThickness="1" CornerRadius="6" Padding="10" Margin="0,0,6,0">
+        <StackPanel Spacing="6">
+          <TextBlock Text="Abschnitt abschließen" FontSize="12" FontWeight="SemiBold"/>
+          <Grid ColumnDefinitions="*,100" ColumnSpacing="6">
+            <TextBox Grid.Column="0" Text="{Binding NewSectionLabel}" PlaceholderText="Bezeichnung"/>
+            <TextBox Grid.Column="1" Text="{Binding NewSectionEndDateText}" PlaceholderText="TT.MM.JJJJ"/>
+          </Grid>
+          <TextBlock Text="{Binding SectionValidationMessage}" Foreground="Red" FontSize="11"
+                     IsVisible="{Binding SectionValidationMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+          <Button Content="Abschnitt für alle Schüler abschließen" Command="{Binding CloseSectionCommand}"
+                  HorizontalAlignment="Stretch"/>
+        </StackPanel>
+      </Border>
+
+      <Border Grid.Column="1" BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+              BorderThickness="1" CornerRadius="6" Padding="10" Margin="6,0,0,0">
+        <StackPanel Spacing="6">
+          <TextBlock Text="Halbjahresnote aus Abschnitten" FontSize="12" FontWeight="SemiBold"/>
+          <ComboBox ItemsSource="{Binding RollupPeriodOptions}" SelectedItem="{Binding RollupPeriod}"
+                    HorizontalAlignment="Stretch"/>
+          <TextBlock Text="{Binding RollupStatusMessage}" Foreground="Green" FontSize="11"
+                     IsVisible="{Binding RollupStatusMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+          <Button Content="Für alle Schüler übernehmen" Command="{Binding ApplyRollupCommand}"
+                  HorizontalAlignment="Stretch"/>
+        </StackPanel>
+      </Border>
+    </Grid>
+
+    <Button Grid.Row="5" Content="Schließen" HorizontalAlignment="Right" Margin="0,14,0,0" Click="OnClose"/>
+  </Grid>
+</Window>
@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace LehrerApp.Desktop.Views.Groups;
+
+public partial class ParticipationWizardDialog : Window
+{
+    public ParticipationWizardDialog() => InitializeComponent();
+
+    private void OnClose(object? sender, RoutedEventArgs e) => Close();
+}
@@ -0,0 +1,64 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
+        x:Class="LehrerApp.Desktop.Views.Groups.ReportGradeDialog"
+        x:DataType="vm:ReportGradeDialogViewModel"
+        Title="Zeugnisnoten"
+        Width="820" Height="680" MinWidth="640" MinHeight="440"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="24">
+
+    <StackPanel Grid.Row="0" Spacing="2">
+      <TextBlock Text="{Binding GroupLabel}" FontSize="18" FontWeight="SemiBold"/>
+      <TextBlock Text="{Binding SchemeSummary}" FontSize="12" Opacity="0.6"/>
+    </StackPanel>
+
+    <StackPanel Grid.Row="1" Orientation="Horizontal" Spacing="12" Margin="0,12,0,10">
+      <StackPanel Orientation="Horizontal" Spacing="6">
+        <TextBlock Text="Zeitraum:" VerticalAlignment="Center"/>
+        <ComboBox ItemsSource="{Binding PeriodOptions}" SelectedItem="{Binding SelectedPeriod}" MinWidth="170"/>
+      </StackPanel>
+      <StackPanel Orientation="Horizontal" Spacing="6">
+        <TextBlock Text="Rundung:" VerticalAlignment="Center"/>
+        <ComboBox ItemsSource="{Binding RoundingOptions}" SelectedItem="{Binding RoundingRuleName}" MinWidth="140"/>
+      </StackPanel>
+    </StackPanel>
+
+    <ScrollViewer Grid.Row="2">
+      <ItemsControl ItemsSource="{Binding Rows}">
+        <ItemsControl.ItemTemplate>
+          <DataTemplate x:DataType="vm:ReportGradeRow">
+            <Border BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+                    BorderThickness="0,0,0,1" Padding="0,8">
+              <StackPanel Spacing="6">
+                <Grid ColumnDefinitions="180,90,*,120,Auto,Auto">
+                  <TextBlock Grid.Column="0" Text="{Binding Name}" VerticalAlignment="Center" FontSize="13"/>
+                  <TextBlock Grid.Column="1" Text="{Binding CalculatedDisplay}" VerticalAlignment="Center"
+                             FontSize="13" Opacity="0.7" ToolTip.Tip="Berechnet"/>
+                  <TextBox Grid.Column="2" Text="{Binding OverrideValue}" PlaceholderText="Übersteuern (optional)"
+                           IsEnabled="{Binding !IsLocked}"/>
+                  <TextBox Grid.Column="3" Text="{Binding OverrideReason}" PlaceholderText="Begründung"
+                           IsEnabled="{Binding !IsLocked}" Margin="6,0,0,0"/>
+                  <TextBlock Grid.Column="4" Text="{Binding FinalDisplay}" FontWeight="SemiBold"
+                             VerticalAlignment="Center" Margin="10,0" FontSize="14"/>
+                  <StackPanel Grid.Column="5" Orientation="Horizontal" Spacing="6">
+                    <Button Content="Speichern" Command="{Binding SaveCommand}" IsEnabled="{Binding !IsLocked}"/>
+                    <Button Content="{Binding LockLabel}" Command="{Binding ToggleLockCommand}"/>
+                  </StackPanel>
+                </Grid>
+                <TextBlock Text="{Binding ValidationMessage}" Foreground="Red" FontSize="11"
+                           IsVisible="{Binding ValidationMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+              </StackPanel>
+            </Border>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </ScrollViewer>
+
+    <Grid Grid.Row="3" ColumnDefinitions="Auto,*,Auto" Margin="0,16,0,0">
+      <Button Grid.Column="0" Content="Als CSV exportieren" Click="OnExportClick"/>
+      <Button Grid.Column="2" Content="Schließen" Click="OnClose"/>
+    </Grid>
+  </Grid>
+</Window>
@@ -0,0 +1,30 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Platform.Storage;
+using LehrerApp.Desktop.ViewModels.Groups;
+
+namespace LehrerApp.Desktop.Views.Groups;
+
+public partial class ReportGradeDialog : Window
+{
+    public ReportGradeDialog() => InitializeComponent();
+
+    private async void OnExportClick(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is not ReportGradeDialogViewModel vm) return;
+        var topLevel = TopLevel.GetTopLevel(this);
+        if (topLevel is null) return;
+
+        var file = await topLevel.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title             = "Zeugnisnoten exportieren",
+            SuggestedFileName = $"Zeugnisnoten_{vm.GroupLabel}.csv",
+            FileTypeChoices   = [new FilePickerFileType("CSV-Dateien") { Patterns = ["*.csv"] }],
+        });
+
+        if (file is null) return;
+        await File.WriteAllTextAsync(file.Path.LocalPath, vm.ExportCsv());
+    }
+
+    private void OnClose(object? sender, RoutedEventArgs e) => Close();
+}
@@ -0,0 +1,55 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
+        x:Class="LehrerApp.Desktop.Views.Groups.StudentGradesDialog"
+        x:DataType="vm:StudentGradesDialogViewModel"
+        Title="{Binding StudentName}"
+        Width="560" Height="600" MinWidth="480" MinHeight="360"
+        CanResize="True" WindowStartupLocation="CenterOwner">
+
+  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="24">
+
+    <TextBlock Grid.Row="0" Text="{Binding StudentName}" FontSize="18" FontWeight="SemiBold"/>
+
+    <Button Grid.Row="1" Content="＋ Note hinzufügen" Command="{Binding AddEntryCommand}"
+            HorizontalAlignment="Left" Margin="0,10,0,10"/>
+
+    <ScrollViewer Grid.Row="2">
+      <ItemsControl ItemsSource="{Binding Entries}">
+        <ItemsControl.ItemTemplate>
+          <DataTemplate x:DataType="vm:GradeEditItem">
+            <Border BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+                    BorderThickness="0,0,0,1" Padding="0,8">
+              <StackPanel Spacing="6">
+                <Grid ColumnDefinitions="120,*,90,90" ColumnSpacing="6">
+                  <ComboBox Grid.Column="0" ItemsSource="{x:Static vm:GradeCategoryDisplay.Options}"
+                            SelectedItem="{Binding CategoryName}"/>
+                  <TextBox Grid.Column="1" Text="{Binding Value}" PlaceholderText="Wert (z.B. 2 oder 11)"/>
+                  <TextBox Grid.Column="2" Text="{Binding DateText}" PlaceholderText="TT.MM.JJJJ"/>
+                  <NumericUpDown Grid.Column="3" Value="{Binding Weight}" Minimum="0" Maximum="10"
+                                 Increment="0.1" FormatString="0.#" ShowButtonSpinner="False"
+                                 ToolTip.Tip="Gewichtung"/>
+                </Grid>
+                <TextBox Text="{Binding Note}" PlaceholderText="Notiz (optional)" FontSize="12"/>
+                <TextBlock Text="{Binding ValidationMessage}" Foreground="Red" FontSize="11"
+                           IsVisible="{Binding ValidationMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+                <Grid ColumnDefinitions="*,Auto,Auto">
+                  <TextBlock Grid.Column="0" Text="{Binding CreatedAtDisplay}" FontSize="11" Opacity="0.5"
+                             VerticalAlignment="Center"/>
+                  <Button Grid.Column="1" Content="Speichern" Command="{Binding SaveCommand}" Margin="0,0,6,0"/>
+                  <Button Grid.Column="2" Content="Löschen" Command="{Binding DeleteCommand}"/>
+                </Grid>
+              </StackPanel>
+            </Border>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </ScrollViewer>
+
+    <TextBlock Grid.Row="2" Text="Noch keine Noten erfasst." Opacity="0.4" FontSize="13"
+               HorizontalAlignment="Center" VerticalAlignment="Top" Margin="0,20,0,0"
+               IsVisible="{Binding !Entries.Count}"/>
+
+    <Button Grid.Row="3" Content="Fertig" HorizontalAlignment="Stretch" Margin="0,16,0,0" Click="OnClose"/>
+  </Grid>
+</Window>
@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace LehrerApp.Desktop.Views.Groups;
+
+public partial class StudentGradesDialog : Window
+{
+    public StudentGradesDialog() => InitializeComponent();
+
+    private void OnClose(object? sender, RoutedEventArgs e) => Close();
+}
@@ -77,9 +77,9 @@
              <NumericUpDown Grid.Column="2"
                             Value="{Binding CatalogGradeLevel}"
                             Minimum="1" Maximum="13" FormatString="0"/>
-              <Button Grid.Column="4" Content="Import JSON" Click="OnImportClick"
+              <Button Grid.Column="4" Content="JSON importieren" Click="OnImportClick"
                      IsEnabled="{Binding CatalogSubject, Converter={x:Static ObjectConverters.IsNotNull}}"/>
-              <Button Grid.Column="6" Content="Export JSON" Click="OnExportClick"
+              <Button Grid.Column="6" Content="JSON exportieren" Click="OnExportClick"
                      IsEnabled="{Binding CatalogSubject, Converter={x:Static ObjectConverters.IsNotNull}}"/>
            </Grid>

@@ -222,6 +222,50 @@
        </ScrollViewer>
      </ContentPage>

+      <!-- Tab: Notenschema -->
+      <ContentPage Header="Notenschema">
+        <ContentPage.Resources>
+          <DataTemplate x:Key="GradingSchemeTemplate" DataType="vm:GradingSchemeEditItem">
+            <Border BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+                    BorderThickness="1" CornerRadius="6" Padding="14,12">
+              <StackPanel Spacing="8">
+                <TextBlock Text="{Binding Label}" FontWeight="SemiBold" FontSize="14"/>
+                <Grid ColumnDefinitions="Auto,90,Auto,90,Auto,90" ColumnSpacing="6">
+                  <TextBlock Grid.Column="0" Text="Klausuren %" VerticalAlignment="Center" FontSize="12"/>
+                  <NumericUpDown Grid.Column="1" Value="{Binding ExamsPercent}" Minimum="0" Maximum="100"
+                                 FormatString="0.#" ShowButtonSpinner="False"/>
+                  <TextBlock Grid.Column="2" Text="Mitarbeit %" VerticalAlignment="Center" FontSize="12"/>
+                  <NumericUpDown Grid.Column="3" Value="{Binding ParticipationPercent}" Minimum="0" Maximum="100"
+                                 FormatString="0.#" ShowButtonSpinner="False"/>
+                  <TextBlock Grid.Column="4" Text="Sonstige %" VerticalAlignment="Center" FontSize="12"/>
+                  <NumericUpDown Grid.Column="5" Value="{Binding OtherPercent}" Minimum="0" Maximum="100"
+                                 FormatString="0.#" ShowButtonSpinner="False"/>
+                </Grid>
+                <TextBlock Text="{Binding ValidationMessage}" Foreground="Red" FontSize="12"
+                           IsVisible="{Binding ValidationMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+                <Grid ColumnDefinitions="*,Auto">
+                  <TextBlock Grid.Column="0" Text="{Binding StatusMessage}" Foreground="Green" FontSize="12"
+                             VerticalAlignment="Center"
+                             IsVisible="{Binding StatusMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+                  <Button Grid.Column="1" Content="Speichern" Command="{Binding SaveCommand}"/>
+                </Grid>
+              </StackPanel>
+            </Border>
+          </DataTemplate>
+        </ContentPage.Resources>
+        <ScrollViewer>
+          <StackPanel Margin="32,20,32,28" Spacing="14" MaxWidth="480">
+
+            <TextBlock Text="Voreinstellung der Gewichtung für die Zeugnisnote (Klausuren / Mitarbeit / Sonstige), je Gruppentyp. Kann pro Lerngruppe überschrieben werden."
+                       FontSize="12" Opacity="0.6" TextWrapping="Wrap"/>
+
+            <ContentControl Content="{Binding ClassScheme}" ContentTemplate="{StaticResource GradingSchemeTemplate}"/>
+            <ContentControl Content="{Binding CourseScheme}" ContentTemplate="{StaticResource GradingSchemeTemplate}"/>
+
+          </StackPanel>
+        </ScrollViewer>
+      </ContentPage>
+
    </TabbedPage>
  </Grid>
 </UserControl>
@@ -129,10 +129,62 @@
      </ContentPage>

      <ContentPage Header="Noten">
-        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
-          <TextBlock Text="Notenübersicht" FontSize="16" Opacity="0.4" HorizontalAlignment="Center"/>
-          <TextBlock Text="Wird implementiert." FontSize="12" Opacity="0.3" HorizontalAlignment="Center"/>
-        </StackPanel>
+        <ScrollViewer Padding="20">
+          <StackPanel Spacing="20">
+            <TextBlock Text="Notenentwicklung" FontSize="15" FontWeight="SemiBold"/>
+
+            <ItemsControl ItemsSource="{Binding GradeHistory}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate DataType="vm:StudentGradeHistoryGroup">
+                  <Border Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
+                          CornerRadius="8" Padding="14,12" Margin="0,0,0,12">
+                    <StackPanel Spacing="8">
+                      <Grid ColumnDefinitions="*,Auto">
+                        <TextBlock Grid.Column="0" Text="{Binding Label}" FontWeight="SemiBold" FontSize="13"/>
+                        <Border Grid.Column="1" Background="#E53935" CornerRadius="4" Padding="6,1"
+                                IsVisible="{Binding HasWarnings}">
+                          <TextBlock Text="Auffälligkeiten" FontSize="10" Foreground="White"/>
+                        </Border>
+                      </Grid>
+
+                      <ItemsControl ItemsSource="{Binding Points}">
+                        <ItemsControl.ItemsPanel>
+                          <ItemsPanelTemplate>
+                            <StackPanel Orientation="Horizontal" Spacing="10"/>
+                          </ItemsPanelTemplate>
+                        </ItemsControl.ItemsPanel>
+                        <ItemsControl.ItemTemplate>
+                          <DataTemplate DataType="vm:GradeHistoryPoint">
+                            <StackPanel Width="46" VerticalAlignment="Bottom" ToolTip.Tip="{Binding TooltipText}">
+                              <Border Classes="historybar" Height="{Binding BarHeight}" Width="16" CornerRadius="2"
+                                      HorizontalAlignment="Center" VerticalAlignment="Bottom"
+                                      Classes.warning="{Binding IsWarning}"/>
+                              <TextBlock Text="{Binding Value}" FontSize="11" FontWeight="SemiBold"
+                                         HorizontalAlignment="Center" Margin="0,3,0,0"/>
+                              <TextBlock Text="{Binding DateDisplay}" FontSize="9" Opacity="0.5"
+                                         HorizontalAlignment="Center"/>
+                            </StackPanel>
+                          </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                        <ItemsControl.Styles>
+                          <Style Selector="Border.historybar">
+                            <Setter Property="Background" Value="{DynamicResource SystemControlBackgroundAccentBrush}"/>
+                          </Style>
+                          <Style Selector="Border.historybar.warning">
+                            <Setter Property="Background" Value="#E53935"/>
+                          </Style>
+                        </ItemsControl.Styles>
+                      </ItemsControl>
+                    </StackPanel>
+                  </Border>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+
+            <TextBlock Text="Noch keine Noten für diesen Schüler erfasst." Opacity="0.4"
+                       IsVisible="{Binding !GradeHistory.Count}"/>
+          </StackPanel>
+        </ScrollViewer>
      </ContentPage>

      <ContentPage Header="Dokumentation">