Redesign Klassenlehrer Tab.

LehrerApp.Desktop.Tests/ClassTeacherViewModelsTests.cs

@@ -126,6 +126,51 @@ public sealed class ClassTeacherViewModelsTests
         Assert.True(ben.HasRecentClassRegisterEntry);
     }
 
+    [Fact]
+    public void RosterBuild_BeschreibtVerspaetungNichtAlsNullFehlstunden()
+    {
+        var students = new[] { Student(1001, "Ada Müller") };
+        var todayAbsences = new[]
+        {
+            new ClassAbsenceDaySummaryRow(new DateOnly(2026, 8, 26), "Müller Ada", 1001, 0, 20,
+                ["Deu"], [1], ["nicht entsch."], ["Verspätung"], null, null, false),
+        };
+
+        var row = Assert.Single(ClassTeacherRosterRow.Build(students, todayAbsences, [],
+            new DateOnly(2026, 8, 26)));
+
+        Assert.True(row.IsLate);
+        Assert.True(row.IsUnexcused);
+        Assert.Equal("20 Min. verspätet · Unentschuldigt", row.StatusText);
+        Assert.Equal("#FF5A67", row.StatusColor);
+    }
+
+    [Fact]
+    public void RosterBuild_PriorisiertHandlungsbedarfVorUnauffaelligenSchuelern()
+    {
+        var students = new[]
+        {
+            Student(1001, "Zora Unauffällig"),
+            Student(1002, "Ada Fehlzeit"),
+            Student(1003, "Ben Klassenbuch"),
+        };
+        var absences = new[]
+        {
+            new ClassAbsenceDaySummaryRow(new DateOnly(2026, 8, 26), "Fehlzeit Ada", 1002, 2, 90,
+                ["Deu"], [1, 2], ["nicht entsch."], ["Absent"], null, null, false),
+        };
+        var register = new[]
+        {
+            new UntisForeignClassRegisterEventDto("10c", 20260825, "Deu", "Klassenbuch Ben", "test",
+                "Fehlende HA", "Negativ", "Hausaufgaben fehlen"),
+        };
+
+        var rows = ClassTeacherRosterRow.Build(students, absences, register, new DateOnly(2026, 8, 26));
+
+        Assert.Equal(["Ada Fehlzeit", "Ben Klassenbuch", "Zora Unauffällig"],
+            rows.Select(r => r.StudentName));
+    }
+
     private static UntisStudentRosterCacheEntry Student(int? externKey, string displayName) =>
         new() { ClassName = "6a", ExternKey = externKey, DisplayName = displayName };
 }

LehrerApp.Desktop/ViewModels/ClassTeacher/ClassTeacherDetailsViewModel.cs

@@ -12,6 +12,15 @@ public sealed record ClassTeacherClassRegisterRow(DateOnly Date, string? Subject
     string? TeacherUsername, string? CategoryName, string? CategoryGroup, string? Text)
 {
     public string DateLabel => Date.ToString("dd.MM.yyyy");
+    public string StudentDisplayName => DisplayName(StudentName);
+    public string CategoryColor => CategoryGroup?.Contains("Negativ", StringComparison.OrdinalIgnoreCase) == true
+        ? "#FF5A67" : "#4C8DFF";
+
+    private static string DisplayName(string value)
+    {
+        var parts = value.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+        return parts.Length < 2 ? value : string.Join(" ", parts.Skip(1).Append(parts[0]));
+    }
 }
 
 /// <summary>Fehlzeiten eines/einer Schüler*in an einem Tag, über alle Fächer zusammengefasst -
@@ -25,6 +34,14 @@ public sealed record ClassAbsenceDaySummaryRow(DateOnly Date, string StudentName
     string? Note, string? ExcuseNote, bool CountsAsFullDay)
 {
     public string DateLabel => Date.ToString("dd.MM.yyyy");
+    public string StudentDisplayName
+    {
+        get
+        {
+            var parts = StudentName.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+            return parts.Length < 2 ? StudentName : string.Join(" ", parts.Skip(1).Append(parts[0]));
+        }
+    }
     public string SubjectsLabel => string.Join(", ", Subjects);
     public string PeriodsLabel => string.Join(", ", PeriodNumbers.Order());
     public string StatusLabel => string.Join(", ", Statuses);
@@ -33,6 +50,17 @@ public sealed record ClassAbsenceDaySummaryRow(DateOnly Date, string StudentName
     /// dezente Hervorhebung statt einer weiteren Text-/Icon-Spalte.
     public string RowBackground => CountsAsFullDay ? "#1FFFA000" : "Transparent";
     public string? FullDayTooltip => CountsAsFullDay ? "Ganzer Fehltag" : null;
+    public bool IsLate => TotalAbsentPeriods == 0 || AbsenceReasons.Any(r =>
+        r.Contains("verspät", StringComparison.OrdinalIgnoreCase));
+    public bool IsUnexcused => Statuses.Any(s =>
+        s.Contains("nicht entsch", StringComparison.OrdinalIgnoreCase));
+    public string KindLabel => IsLate ? $"{TotalAbsentMinutes} Min. verspätet" :
+        CountsAsFullDay ? "Ganzer Fehltag" : $"{TotalAbsentPeriods} Fehlstunde{(TotalAbsentPeriods == 1 ? "" : "n")}";
+    public string FriendlyStatusLabel => IsUnexcused ? "Unentschuldigt" :
+        Statuses.Any(s => s.Contains("entsch", StringComparison.OrdinalIgnoreCase)) ? "Entschuldigt" : StatusLabel;
+    public string StatusColor => IsUnexcused ? "#FF5A67" : IsLate ? "#F59E0B" : "#73C45A";
+    public string DetailLabel => string.Join(" · ", new[] { ReasonLabel, Note, ExcuseNote }
+        .Where(value => !string.IsNullOrWhiteSpace(value)));
 
     public static IReadOnlyList<ClassAbsenceDaySummaryRow> GroupByStudentAndDay(
         IEnumerable<UntisClassAbsenceEntryDto> entries) => entries
@@ -78,12 +106,18 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
     public ObservableCollection<ClassTeacherClassRegisterRow> Entries { get; } = [];
     public ObservableCollection<ClassAbsenceDaySummaryRow> AbsenceEntries { get; } = [];
 
-    [ObservableProperty] private DateTimeOffset _startDate = DateTimeOffset.Now.AddDays(-7);
+    [ObservableProperty] private DateTimeOffset _startDate = DateTimeOffset.Now.AddDays(-6);
     [ObservableProperty] private DateTimeOffset _endDate = DateTimeOffset.Now;
     [ObservableProperty] private string _status = "Zeitraum wählen und laden.";
     [ObservableProperty] private bool _busy;
     /// Von der Übersicht gesetzt (Klick auf eine Roster-Zeile) - leer zeigt alle Schüler*innen.
     [ObservableProperty] private string _studentFilter = "";
+    [ObservableProperty] private int _quickRangeIndex = 1;
+
+    public bool HasEntries => Entries.Count > 0;
+    public bool HasAbsenceEntries => AbsenceEntries.Count > 0;
+    public string ActiveFilterLabel => string.IsNullOrWhiteSpace(StudentFilter)
+        ? "Alle Schüler*innen" : StudentFilter;
 
     public ClassTeacherDetailsViewModel(UntisReportCacheService cache)
     {
@@ -93,9 +127,20 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
     public void Initialize(string className)
     {
         _className = className;
+        StudentFilter = "";
         Entries.Clear();
         AbsenceEntries.Clear();
         Status = "Zeitraum wählen und laden.";
+        NotifyListState();
+    }
+
+    partial void OnStudentFilterChanged(string value) => OnPropertyChanged(nameof(ActiveFilterLabel));
+
+    partial void OnQuickRangeIndexChanged(int value)
+    {
+        var days = value switch { 0 => 0, 1 => 6, 2 => 29, _ => 6 };
+        EndDate = DateTimeOffset.Now;
+        StartDate = DateTimeOffset.Now.AddDays(-days);
     }
 
     [RelayCommand]
@@ -106,6 +151,16 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
     [RelayCommand]
     private Task Refresh() => LoadInternal(forceRefresh: true);
 
+    [RelayCommand]
+    private Task ApplyFilter() => LoadInternal(forceRefresh: false);
+
+    [RelayCommand]
+    private async Task ClearStudentFilter()
+    {
+        StudentFilter = "";
+        await LoadInternal(forceRefresh: false);
+    }
+
     private async Task LoadInternal(bool forceRefresh)
     {
         var start = DateOnly.FromDateTime(StartDate.LocalDateTime);
@@ -113,7 +168,7 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
         if (end < start) { Status = "Das Enddatum darf nicht vor dem Startdatum liegen."; return; }
         if (string.IsNullOrWhiteSpace(_className)) { Status = "Keine Klasse ausgewählt."; return; }
 
-        Busy = true; Entries.Clear(); AbsenceEntries.Clear();
+        Busy = true; Entries.Clear(); AbsenceEntries.Clear(); NotifyListState();
         try
         {
             var classRegisterTask = _cache.GetClassRegisterEventsAsync(_className, start, end, forceRefresh);
@@ -137,9 +192,10 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
 
             Status = $"{Entries.Count} Klassenbucheinträge anderer Lehrkräfte, " +
                      $"{AbsenceEntries.Count} Fehlzeiten-Tage im Zeitraum.";
+            NotifyListState();
         }
         catch (WebUntisIntegrationException ex) { Status = ex.Message; }
-        finally { Busy = false; }
+        finally { Busy = false; NotifyListState(); }
     }
 
     // WebUntis liefert Namen je nach Bericht in anderer Reihenfolge als der Schülerreport, aus dem
@@ -153,4 +209,10 @@ public partial class ClassTeacherDetailsViewModel : ObservableObject
 
     private static bool TryDate(int value, out DateOnly date) =>
         DateOnly.TryParseExact(value.ToString(), "yyyyMMdd", out date);
+
+    private void NotifyListState()
+    {
+        OnPropertyChanged(nameof(HasEntries));
+        OnPropertyChanged(nameof(HasAbsenceEntries));
+    }
 }

LehrerApp.Desktop/ViewModels/ClassTeacher/ClassTeacherOverviewViewModel.cs

@@ -6,62 +6,91 @@ using LehrerApp.Desktop.Services;
 
 namespace LehrerApp.Desktop.ViewModels.ClassTeacher;
 
-/// <summary>Eine Zeile der Klassenlehrer-Übersicht ("auf einen Blick", Nutzer-Feedback) - pro
-/// Schüler*in ein Ampel-Symbol für "heute laut WebUntis keine gemeldete Fehlzeit" und ein Badge,
-/// falls in den letzten Tagen ein Klassenbucheintrag einer anderen Lehrkraft angelegt wurde.
-/// Bewusst kein Bezug zu eigenem Unterricht/eigener Anwesenheitserfassung - genau der Fall, den es
-/// abzudecken gilt, ist der Tag ohne eigenen Unterricht mit der Klasse.</summary>
 public sealed record ClassTeacherRosterRow(string StudentName, int? ExternKey, bool HasAbsenceToday,
     string? AbsenceTooltip, bool HasRecentClassRegisterEntry)
 {
-    public string StatusIcon => HasAbsenceToday ? "⚠" : "✓";
+    public ClassAbsenceDaySummaryRow? TodayAbsence { get; init; }
+    public bool HasClassRegisterToday { get; init; }
+    public bool IsLate => TodayAbsence is { } a &&
+        (a.TotalAbsentPeriods == 0 || a.AbsenceReasons.Any(IsLateReason));
+    public bool IsUnexcused => TodayAbsence?.Statuses.Any(s =>
+        s.Contains("nicht entsch", StringComparison.OrdinalIgnoreCase)) == true;
+    public bool NeedsAttention => HasAbsenceToday || HasRecentClassRegisterEntry;
+    public int AttentionRank => IsUnexcused ? 0 : IsLate ? 1 : HasAbsenceToday ? 2 :
+        HasRecentClassRegisterEntry ? 3 : 4;
+
+    public string Initials
+    {
+        get
+        {
+            var parts = StudentName.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+            return string.Concat(parts.Take(2).Select(p => char.ToUpperInvariant(p[0])));
+        }
+    }
+
+    public string StatusText
+    {
+        get
+        {
+            if (TodayAbsence is null)
+                return HasRecentClassRegisterEntry ? "Neuer Klassenbucheintrag" : "Keine gemeldete Fehlzeit";
+            var core = IsLate
+                ? $"{TodayAbsence.TotalAbsentMinutes} Min. verspätet"
+                : TodayAbsence.CountsAsFullDay
+                    ? "Ganzer Fehltag"
+                    : $"{TodayAbsence.TotalAbsentPeriods} Fehlstunde{(TodayAbsence.TotalAbsentPeriods == 1 ? "" : "n")}";
+            return IsUnexcused ? $"{core} · Unentschuldigt" : core;
+        }
+    }
+
+    public string StatusColor => IsUnexcused ? "#FF5A67" :
+        HasAbsenceToday ? "#F59E0B" : HasRecentClassRegisterEntry ? "#4C8DFF" : "#73C45A";
+    public string StatusBarColor => StatusColor;
+    public string ClassRegisterLabel => HasClassRegisterToday ? "Eintrag heute" :
+        HasRecentClassRegisterEntry ? "Eintrag diese Woche" : "";
+
+    private static bool IsLateReason(string reason) =>
+        reason.Contains("verspät", StringComparison.OrdinalIgnoreCase);
 
-    /// <summary>Führt die WebUntis-Schülerliste der Klasse mit den heutigen Fehlzeiten und den
-    /// jüngsten Klassenbucheinträgen zusammen. Zuordnung primär über <c>ExternKey</c> (beide
-    /// stammen aus WebUntis, gleiche Kennung), Fallback auf reihenfolge-unabhängigen Namensabgleich
-    /// (<see cref="UntisNameMatching"/>) für den Klassenbuch-Bericht, der keinen ExternKey liefert
-    /// (siehe UntisForeignClassRegisterEventDto) — WebUntis liefert Namen dort in anderer
-    /// Reihenfolge als im Schülerreport.</summary>
     public static IReadOnlyList<ClassTeacherRosterRow> Build(
         IReadOnlyList<UntisStudentRosterCacheEntry> students,
         IReadOnlyList<ClassAbsenceDaySummaryRow> todayAbsences,
-        IReadOnlyList<UntisForeignClassRegisterEventDto> recentClassRegisterEntries)
+        IReadOnlyList<UntisForeignClassRegisterEventDto> recentClassRegisterEntries,
+        DateOnly? today = null)
     {
-        var absenceByKey = todayAbsences
+        var referenceDate = today ?? todayAbsences.FirstOrDefault()?.Date ?? DateOnly.FromDateTime(DateTime.Today);
-            .Where(a => a.ExternKey is not null)
+        var absenceByKey = todayAbsences.Where(a => a.ExternKey is not null)
-            .GroupBy(a => a.ExternKey!.Value)
+            .GroupBy(a => a.ExternKey!.Value).ToDictionary(g => g.Key, g => g.First());
+        var absenceByName = todayAbsences.GroupBy(a => UntisNameMatching.NameKey(a.StudentName))
             .ToDictionary(g => g.Key, g => g.First());
-        var absenceByName = todayAbsences
+        var recentByName = recentClassRegisterEntries.GroupBy(e => UntisNameMatching.NameKey(e.StudentName))
-            .GroupBy(a => UntisNameMatching.NameKey(a.StudentName))
+            .ToDictionary(g => g.Key, g => g.ToList());
-            .ToDictionary(g => g.Key, g => g.First());
-        var recentNames = recentClassRegisterEntries
-            .Select(e => UntisNameMatching.NameKey(e.StudentName))
-            .ToHashSet();
 
-        return students
+        return students.Select(student =>
-            .Select(s =>
             {
-                var nameKey = UntisNameMatching.NameKey(s.DisplayName);
+                var nameKey = UntisNameMatching.NameKey(student.DisplayName);
-                var absence = (s.ExternKey is { } key ? absenceByKey.GetValueOrDefault(key) : null)
+                var absence = (student.ExternKey is { } key ? absenceByKey.GetValueOrDefault(key) : null)
                     ?? absenceByName.GetValueOrDefault(nameKey);
-                return new ClassTeacherRosterRow(s.DisplayName, s.ExternKey, absence is not null,
+                var registerEntries = recentByName.GetValueOrDefault(nameKey) ?? [];
+                return new ClassTeacherRosterRow(student.DisplayName, student.ExternKey, absence is not null,
                     absence is null ? null : $"{absence.TotalAbsentPeriods} Stunde(n) — {absence.StatusLabel}",
-                    recentNames.Contains(nameKey));
+                    registerEntries.Count > 0)
+                {
+                    TodayAbsence = absence,
+                    HasClassRegisterToday = registerEntries.Any(e => TryDate(e.Date, out var date) && date == referenceDate),
+                };
             })
-            .OrderBy(r => r.StudentName)
+            .OrderBy(r => r.AttentionRank).ThenBy(r => r.StudentName).ToList();
-            .ToList();
     }
+
+    private static bool TryDate(int value, out DateOnly date) =>
+        DateOnly.TryParseExact(value.ToString(), "yyyyMMdd", out date);
 }
 
-/// <summary>
+public sealed record ClassTeacherTrendDay(string DayLabel, int AlertCount, int UnexcusedCount, int LateCount,
-/// Top-Level-Bereich "Klassenlehrer" (eigener Sidebar-Eintrag, siehe MainWindowViewModel) - bewusst
+    double AlertBarWidth, double UnexcusedBarWidth, double LateBarWidth);
-/// nicht an eine LearningGroup gehängt, da man Klassenlehrer für eine ganze Klasse ist, unabhängig
+public sealed record ClassTeacherPatternNotice(string StudentName, string Message, string Color);
-/// vom eigenen Unterricht (Nutzer-Feedback zur ursprünglichen Umsetzung als Gruppen-Tab). Die
+
-/// Klasse selbst kommt aus den WebUntis-Einstellungen (<see cref="WebUntisSettingsService.HomeroomClassName"/>).
-/// Zwei Ebenen: Übersicht (dieses ViewModel, kompaktes Roster) und Details
-/// (<see cref="ClassTeacherDetailsViewModel"/>, die bisherigen Rohdaten-Listen) - ein Klick auf
-/// eine Roster-Zeile springt gefiltert in die Details.
-/// </summary>
 public partial class ClassTeacherOverviewViewModel : ObservableObject
 {
     private readonly WebUntisSettingsService _settings;
@@ -69,57 +98,132 @@ public partial class ClassTeacherOverviewViewModel : ObservableObject
 
     public ClassTeacherDetailsViewModel DetailsTab { get; }
     public ObservableCollection<ClassTeacherRosterRow> Roster { get; } = [];
+    public ObservableCollection<ClassTeacherRosterRow> PrimaryRoster { get; } = [];
+    public ObservableCollection<ClassTeacherRosterRow> SecondaryRoster { get; } = [];
+    public ObservableCollection<ClassTeacherTrendDay> TrendDays { get; } = [];
+    public ObservableCollection<ClassTeacherPatternNotice> PatternNotices { get; } = [];
 
     [ObservableProperty] private string? _homeroomClassName;
     [ObservableProperty] private int _activeTabIndex;
     [ObservableProperty] private string _status = "";
     [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string _searchText = "";
+    [ObservableProperty] private int _selectedRosterFilter;
+    [ObservableProperty] private string _primarySectionTitle = "Heute auffällig";
+    [ObservableProperty] private string _secondarySectionTitle = "Weitere Schüler*innen";
+    [ObservableProperty] private int _studentCount;
+    [ObservableProperty] private int _todayAlertCount;
+    [ObservableProperty] private int _todayUnexcusedCount;
+    [ObservableProperty] private int _recentClassRegisterCount;
+    [ObservableProperty] private int _presentCount;
+    [ObservableProperty] private int _lateCount;
+    [ObservableProperty] private int _excusedAbsenceCount;
+    [ObservableProperty] private int _unexcusedAbsenceCount;
+    [ObservableProperty] private string _lastUpdatedLabel = "Noch nicht aktualisiert";
 
     public bool HomeroomClassConfigured => !string.IsNullOrWhiteSpace(HomeroomClassName);
+    public bool HasPrimaryRoster => PrimaryRoster.Count > 0;
+    public bool HasSecondaryRoster => SecondaryRoster.Count > 0;
+    public bool HasNoFilterResults => !Busy && PrimaryRoster.Count == 0 && SecondaryRoster.Count == 0;
+    public bool HasPatternNotices => PatternNotices.Count > 0;
+    public bool AlertsFilterSelected => SelectedRosterFilter == 0;
+    public bool ClassRegisterFilterSelected => SelectedRosterFilter == 1;
+    public bool AllFilterSelected => SelectedRosterFilter == 2;
+    public int TodayUnexcusedPercent => Percent(TodayUnexcusedCount);
+    public int LatePercent => Percent(LateCount);
+    public int PresentPercent => Percent(PresentCount);
+    public int ExcusedAbsencePercent => Percent(ExcusedAbsenceCount);
+    public int UnexcusedAbsencePercent => Percent(UnexcusedAbsenceCount);
 
-    /// Vom Code-Behind/MainWindowViewModel gesetzt: springt in die WebUntis-Einstellungen, wenn noch
-    /// keine Klasse gewählt ist.
     public Func<Task>? OnNavigateToSettings { get; set; }
+    public Func<Task>? OnNavigateToWorkload { get; set; }
 
     public ClassTeacherOverviewViewModel(WebUntisSettingsService settings,
         UntisReportCacheService cache, ClassTeacherDetailsViewModel detailsTab)
     {
-        _settings = settings; _cache = cache; DetailsTab = detailsTab;
+        _settings = settings;
+        _cache = cache;
+        DetailsTab = detailsTab;
     }
 
     partial void OnHomeroomClassNameChanged(string? value) => OnPropertyChanged(nameof(HomeroomClassConfigured));
+    partial void OnSearchTextChanged(string value) => ApplyRosterFilter();
+    partial void OnSelectedRosterFilterChanged(int value)
+    {
+        OnPropertyChanged(nameof(AlertsFilterSelected));
+        OnPropertyChanged(nameof(ClassRegisterFilterSelected));
+        OnPropertyChanged(nameof(AllFilterSelected));
+        ApplyRosterFilter();
+    }
 
     [RelayCommand]
     private async Task Load()
     {
         HomeroomClassName = _settings.HomeroomClassName;
         ActiveTabIndex = 0;
-        Roster.Clear();
+        Roster.Clear(); PrimaryRoster.Clear(); SecondaryRoster.Clear(); TrendDays.Clear(); PatternNotices.Clear();
         if (!HomeroomClassConfigured)
         {
             Status = "Noch keine Klasse ausgewählt.";
+            NotifyRosterState();
             return;
         }
 
         var className = HomeroomClassName!;
         DetailsTab.Initialize(className);
         Busy = true;
+        NotifyRosterState();
         try
         {
             var today = DateOnly.FromDateTime(DateTime.Today);
+            var start = today.AddDays(-6);
             var studentsTask = _cache.GetStudentRosterAsync(className);
-            var absencesTask = _cache.GetAbsencesAsync(className, today, today);
+            var absencesTask = _cache.GetAbsencesAsync(className, start, today);
-            var classRegisterTask = _cache.GetClassRegisterEventsAsync(className, today.AddDays(-7), today);
+            var classRegisterTask = _cache.GetClassRegisterEventsAsync(className, start, today);
             await Task.WhenAll(studentsTask, absencesTask, classRegisterTask);
 
-            var todayAbsences = ClassAbsenceDaySummaryRow.GroupByStudentAndDay(absencesTask.Result);
+            var absenceDays = ClassAbsenceDaySummaryRow.GroupByStudentAndDay(absencesTask.Result);
+            var todayAbsences = absenceDays.Where(a => a.Date == today).ToList();
             foreach (var row in ClassTeacherRosterRow.Build(studentsTask.Result, todayAbsences,
-                         classRegisterTask.Result))
+                         classRegisterTask.Result, today)) Roster.Add(row);
-                Roster.Add(row);
+
-            Status = $"{Roster.Count} Schüler*innen · Stand heute.";
+            StudentCount = Roster.Count;
+            TodayAlertCount = Roster.Count(r => r.HasAbsenceToday);
+            TodayUnexcusedCount = Roster.Count(r => r.IsUnexcused);
+            LateCount = Roster.Count(r => r.IsLate);
+            PresentCount = Roster.Count(r => !r.HasAbsenceToday);
+            ExcusedAbsenceCount = Roster.Count(r => r.HasAbsenceToday && !r.IsLate && !r.IsUnexcused);
+            UnexcusedAbsenceCount = Roster.Count(r => r.HasAbsenceToday && !r.IsLate && r.IsUnexcused);
+            RecentClassRegisterCount = classRegisterTask.Result.Count;
+            BuildTrend(absenceDays, start, today);
+            BuildPatternNotices(absenceDays);
+            LastUpdatedLabel = $"Zuletzt aktualisiert: Heute, {DateTime.Now:HH:mm}";
+            Status = $"{StudentCount} Schüler*innen · {TodayAlertCount} heute auffällig";
+            ApplyRosterFilter();
+            NotifySummary();
         }
-        catch (WebUntisIntegrationException ex) { Status = ex.Message; }
+        catch (WebUntisIntegrationException ex) { Status = ex.Message; NotifyRosterState(); }
-        finally { Busy = false; }
+        finally { Busy = false; NotifyRosterState(); }
+    }
+
+    [RelayCommand] private void ShowAlerts() => SelectedRosterFilter = 0;
+    [RelayCommand] private void ShowClassRegister() => SelectedRosterFilter = 1;
+    [RelayCommand] private void ShowAll() => SelectedRosterFilter = 2;
+
+    [RelayCommand]
+    private void OpenClassRegister()
+    {
+        DetailsTab.StudentFilter = "";
+        ActiveTabIndex = 1;
+        DetailsTab.LoadCommand.Execute(null);
+    }
+
+    [RelayCommand]
+    private void OpenAbsences()
+    {
+        DetailsTab.StudentFilter = "";
+        ActiveTabIndex = 2;
+        DetailsTab.LoadCommand.Execute(null);
     }
 
     [RelayCommand]
@@ -127,13 +231,87 @@ public partial class ClassTeacherOverviewViewModel : ObservableObject
     {
         if (row is null) return;
         DetailsTab.StudentFilter = row.StudentName;
-        ActiveTabIndex = 1;
+        ActiveTabIndex = row.HasAbsenceToday ? 2 : 1;
         DetailsTab.LoadCommand.Execute(null);
     }
 
-    [RelayCommand]
+    [RelayCommand] private async Task GoToSettings()
-    private async Task GoToSettings()
+    { if (OnNavigateToSettings is not null) await OnNavigateToSettings(); }
+
+    [RelayCommand] private async Task GoToWorkload()
+    { if (OnNavigateToWorkload is not null) await OnNavigateToWorkload(); }
+
+    private void ApplyRosterFilter()
     {
-        if (OnNavigateToSettings is not null) await OnNavigateToSettings();
+        PrimaryRoster.Clear(); SecondaryRoster.Clear();
+        var query = Roster.Where(r => string.IsNullOrWhiteSpace(SearchText) ||
+            r.StudentName.Contains(SearchText.Trim(), StringComparison.CurrentCultureIgnoreCase));
+        if (SelectedRosterFilter == 0)
+        {
+            PrimarySectionTitle = "Heute auffällig";
+            foreach (var row in query.Where(r => r.HasAbsenceToday)) PrimaryRoster.Add(row);
+        }
+        else if (SelectedRosterFilter == 1)
+        {
+            PrimarySectionTitle = "Klassenbucheinträge der letzten 7 Tage";
+            foreach (var row in query.Where(r => r.HasRecentClassRegisterEntry)) PrimaryRoster.Add(row);
+        }
+        else
+        {
+            PrimarySectionTitle = "Heute auffällig";
+            SecondarySectionTitle = "Weitere Schüler*innen";
+            foreach (var row in query.Where(r => r.NeedsAttention)) PrimaryRoster.Add(row);
+            foreach (var row in query.Where(r => !r.NeedsAttention)) SecondaryRoster.Add(row);
+        }
+        NotifyRosterState();
+    }
+
+    private void BuildTrend(IReadOnlyList<ClassAbsenceDaySummaryRow> absenceDays, DateOnly start, DateOnly end)
+    {
+        var counts = Enumerable.Range(0, 7).Select(offset => start.AddDays(offset)).Select(date =>
+        {
+            var rows = absenceDays.Where(r => r.Date == date).ToList();
+            return (Date: date, Alerts: rows.Count,
+                Unexcused: rows.Count(r => r.Statuses.Any(s => s.Contains("nicht entsch", StringComparison.OrdinalIgnoreCase))),
+                Late: rows.Count(r => r.TotalAbsentPeriods == 0 || r.AbsenceReasons.Any(a =>
+                    a.Contains("verspät", StringComparison.OrdinalIgnoreCase))));
+        }).ToList();
+        var max = Math.Max(1, counts.Max(c => c.Alerts));
+        foreach (var day in counts)
+            TrendDays.Add(new ClassTeacherTrendDay(day.Date == end ? "Heute" : day.Date.ToString("ddd"),
+                day.Alerts, day.Unexcused, day.Late,
+                112d * day.Alerts / max, 112d * day.Unexcused / max, 112d * day.Late / max));
+    }
+
+    private void BuildPatternNotices(IReadOnlyList<ClassAbsenceDaySummaryRow> absenceDays)
+    {
+        foreach (var group in absenceDays.GroupBy(row => UntisNameMatching.NameKey(row.StudentName)))
+        {
+            var rows = group.ToList();
+            var displayName = Roster.FirstOrDefault(row =>
+                UntisNameMatching.NameKey(row.StudentName) == group.Key)?.StudentName ?? rows[0].StudentDisplayName;
+            var lateDays = rows.Count(row => row.IsLate);
+            var unexcusedDays = rows.Count(row => row.IsUnexcused && !row.IsLate);
+            if (unexcusedDays >= 2)
+                PatternNotices.Add(new ClassTeacherPatternNotice(displayName,
+                    $"{unexcusedDays} unentschuldigte Fehltage in 7 Tagen", "#FF5A67"));
+            else if (lateDays >= 2)
+                PatternNotices.Add(new ClassTeacherPatternNotice(displayName,
+                    $"{lateDays}-mal verspätet in 7 Tagen", "#F59E0B"));
+        }
+        OnPropertyChanged(nameof(HasPatternNotices));
+    }
+
+    private int Percent(int value) => StudentCount == 0 ? 0 : (int)Math.Round(100d * value / StudentCount);
+    private void NotifySummary()
+    {
+        OnPropertyChanged(nameof(TodayUnexcusedPercent)); OnPropertyChanged(nameof(LatePercent));
+        OnPropertyChanged(nameof(PresentPercent)); OnPropertyChanged(nameof(ExcusedAbsencePercent));
+        OnPropertyChanged(nameof(UnexcusedAbsencePercent));
+    }
+    private void NotifyRosterState()
+    {
+        OnPropertyChanged(nameof(HasPrimaryRoster)); OnPropertyChanged(nameof(HasSecondaryRoster));
+        OnPropertyChanged(nameof(HasNoFilterResults));
     }
 }

LehrerApp.Desktop/ViewModels/MainWindowViewModel.cs

@@ -150,6 +150,7 @@ public partial class MainWindowViewModel : ObservableObject
     {
         var vm = _services.GetRequiredService<ClassTeacherOverviewViewModel>();
         vm.OnNavigateToSettings = () => { NavigateToSettings(SettingsTab.WebUntis); return Task.CompletedTask; };
+        vm.OnNavigateToWorkload = () => { NavigateToWorkload(); return Task.CompletedTask; };
         vm.LoadCommand.Execute(null);
         return vm;
     }

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherAbsencesView.axaml

@@ -0,0 +1,72 @@
+<UserControl 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.ClassTeacherAbsencesView"
+             x:DataType="vm:ClassTeacherDetailsViewModel">
+  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="16" RowSpacing="10">
+    <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
+      <StackPanel>
+        <TextBlock Text="Fehlzeiten" FontSize="22" FontWeight="SemiBold"/>
+        <TextBlock Text="Pro Schüler*in und Tag über alle Fächer zusammengefasst" FontSize="12" Opacity="0.55"/>
+      </StackPanel>
+      <Button Grid.Column="1" Content="↻  Aus WebUntis aktualisieren" Command="{Binding RefreshCommand}"
+              IsEnabled="{Binding !Busy}" Background="Transparent" Foreground="#5795F5" VerticalAlignment="Center"/>
+    </Grid>
+
+    <Border Grid.Row="1" Background="#11151B" BorderBrush="#2A3038" BorderThickness="1"
+            CornerRadius="8" Padding="10">
+      <Grid RowDefinitions="Auto,Auto" RowSpacing="8">
+        <Grid Grid.Row="0" ColumnDefinitions="155,Auto,*,Auto,*" ColumnSpacing="8">
+          <ComboBox Grid.Column="0" SelectedIndex="{Binding QuickRangeIndex, Mode=TwoWay}">
+            <ComboBoxItem Content="Heute"/><ComboBoxItem Content="Letzte 7 Tage"/><ComboBoxItem Content="Letzte 30 Tage"/>
+          </ComboBox>
+          <TextBlock Grid.Column="1" Text="von" VerticalAlignment="Center" Opacity="0.6"/>
+          <DatePicker Grid.Column="2" SelectedDate="{Binding StartDate}" HorizontalAlignment="Stretch"/>
+          <TextBlock Grid.Column="3" Text="bis" VerticalAlignment="Center" Opacity="0.6"/>
+          <DatePicker Grid.Column="4" SelectedDate="{Binding EndDate}" HorizontalAlignment="Stretch"/>
+        </Grid>
+        <Grid Grid.Row="1" ColumnDefinitions="*,Auto,Auto" ColumnSpacing="8">
+          <TextBox Grid.Column="0" Text="{Binding StudentFilter, Mode=TwoWay}" PlaceholderText="Schüler*in filtern…"/>
+          <Button Grid.Column="1" Content="Anzeigen" Command="{Binding ApplyFilterCommand}" IsEnabled="{Binding !Busy}"/>
+          <Button Grid.Column="2" Content="Filter löschen" Command="{Binding ClearStudentFilterCommand}"
+                  IsVisible="{Binding StudentFilter, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </Grid>
+      </Grid>
+    </Border>
+
+    <Grid Grid.Row="2">
+      <DataGrid ItemsSource="{Binding AbsenceEntries}" AutoGenerateColumns="False" IsReadOnly="True"
+                GridLinesVisibility="Horizontal" BorderBrush="#2A3038" BorderThickness="1"
+                CanUserResizeColumns="True" CanUserSortColumns="True" RowHeight="48">
+        <DataGrid.Columns>
+          <DataGridTextColumn Header="Datum" Binding="{Binding DateLabel}" Width="105"/>
+          <DataGridTextColumn Header="Schüler*in" Binding="{Binding StudentDisplayName}" Width="1.3*"/>
+          <DataGridTemplateColumn Header="Art" Width="1.15*">
+            <DataGridTemplateColumn.CellTemplate>
+              <DataTemplate x:DataType="vm:ClassAbsenceDaySummaryRow">
+                <TextBlock Text="{Binding KindLabel}" Foreground="{Binding StatusColor}" VerticalAlignment="Center"/>
+              </DataTemplate>
+            </DataGridTemplateColumn.CellTemplate>
+          </DataGridTemplateColumn>
+          <DataGridTemplateColumn Header="Status" Width="1*">
+            <DataGridTemplateColumn.CellTemplate>
+              <DataTemplate x:DataType="vm:ClassAbsenceDaySummaryRow">
+                <Border Background="#1C222A" CornerRadius="5" Padding="7,3" HorizontalAlignment="Left">
+                  <TextBlock Text="{Binding FriendlyStatusLabel}" Foreground="{Binding StatusColor}" FontSize="11"/>
+                </Border>
+              </DataTemplate>
+            </DataGridTemplateColumn.CellTemplate>
+          </DataGridTemplateColumn>
+          <DataGridTextColumn Header="Fächer" Binding="{Binding SubjectsLabel}" Width="1.2*"/>
+          <DataGridTextColumn Header="Stunden" Binding="{Binding PeriodsLabel}" Width="0.75*"/>
+          <DataGridTextColumn Header="Grund / Notiz" Binding="{Binding DetailLabel}" Width="2*"/>
+        </DataGrid.Columns>
+      </DataGrid>
+      <StackPanel IsVisible="{Binding !HasAbsenceEntries}" HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="5">
+        <TextBlock Text="Keine Fehlzeiten im gewählten Zeitraum" FontWeight="SemiBold"/>
+        <TextBlock Text="Passe Zeitraum oder Schülerfilter an." FontSize="12" Opacity="0.55"/>
+      </StackPanel>
+    </Grid>
+    <TextBlock Grid.Row="3" Text="{Binding Status}" FontSize="11" Opacity="0.6"/>
+  </Grid>
+</UserControl>

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherAbsencesView.axaml.cs

@@ -0,0 +1,8 @@
+using Avalonia.Controls;
+
+namespace LehrerApp.Desktop.Views.ClassTeacher;
+
+public partial class ClassTeacherAbsencesView : UserControl
+{
+    public ClassTeacherAbsencesView() => InitializeComponent();
+}

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherDetailsView.axaml

@@ -1,96 +0,0 @@
-<UserControl 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.ClassTeacherDetailsView"
-             x:DataType="vm:ClassTeacherDetailsViewModel">
-
-  <Grid RowDefinitions="Auto,Auto,Auto,Auto,Auto,1*,Auto,Auto,1*,Auto" Margin="16" RowSpacing="6">
-    <TextBlock Grid.Row="0" TextWrapping="Wrap" FontSize="12" Opacity="0.65"
-               Text="Klassenbucheinträge anderer Lehrkräfte und Fehlzeiten der Klasse über alle Fächer (nur Ansicht, keine Übernahme in eigene Daten)."/>
-
-    <StackPanel Grid.Row="1" Orientation="Horizontal" Spacing="8">
-      <DatePicker SelectedDate="{Binding StartDate}"/>
-      <TextBlock Text="bis" VerticalAlignment="Center"/>
-      <DatePicker SelectedDate="{Binding EndDate}"/>
-      <Button Content="Laden" Command="{Binding LoadCommand}" IsEnabled="{Binding !Busy}"
-              ToolTip.Tip="Lädt aus dem lokalen Cache, sofern der aktuelle Zeitraum in der letzten Stunde schon einmal abgerufen wurde."/>
-      <Button Content="Jetzt wirklich neu abrufen" Command="{Binding RefreshCommand}" IsEnabled="{Binding !Busy}"
-              ToolTip.Tip="Ruft WebUntis direkt ab, auch wenn der Cache noch aktuell wäre."/>
-    </StackPanel>
-
-    <StackPanel Grid.Row="2" Orientation="Horizontal" Spacing="8"
-                IsVisible="{Binding StudentFilter, Converter={x:Static StringConverters.IsNotNullOrEmpty}}">
-      <TextBlock Text="{Binding StudentFilter, StringFormat='Gefiltert auf: {0}'}" FontSize="12" VerticalAlignment="Center"/>
-      <Button Content="Filter zurücksetzen" FontSize="11" Padding="8,3" Click="OnClearStudentFilterClick"/>
-    </StackPanel>
-
-    <TextBlock Grid.Row="3" Text="Klassenbucheinträge anderer Lehrkräfte" FontWeight="SemiBold" FontSize="13" Margin="0,4,0,0"/>
-    <Grid Grid.Row="4" ColumnDefinitions="70,1*,1.1*,0.8*,1*,1.3*" ColumnSpacing="8" Margin="4,0">
-      <TextBlock Grid.Column="0" Text="Datum" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="1" Text="Schüler*in" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="2" Text="Fach / Lehrkraft" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="3" Text="Kategorie" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="4" Text="Gruppe" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="5" Text="Text" FontSize="11" Opacity="0.6"/>
-    </Grid>
-    <ScrollViewer Grid.Row="5">
-      <ItemsControl ItemsSource="{Binding Entries}">
-        <ItemsControl.ItemTemplate>
-          <DataTemplate x:DataType="vm:ClassTeacherClassRegisterRow">
-            <Grid ColumnDefinitions="70,1*,1.1*,0.8*,1*,1.3*" ColumnSpacing="8" Margin="0,3">
-              <TextBlock Grid.Column="0" Text="{Binding DateLabel}" VerticalAlignment="Center"/>
-              <TextBlock Grid.Column="1" Text="{Binding StudentName}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-              <StackPanel Grid.Column="2" Spacing="0">
-                <TextBlock Text="{Binding Subject}"/>
-                <TextBlock Text="{Binding TeacherUsername}" FontSize="11" Opacity="0.6"/>
-              </StackPanel>
-              <TextBlock Grid.Column="3" Text="{Binding CategoryName}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-              <TextBlock Grid.Column="4" Text="{Binding CategoryGroup}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-              <TextBlock Grid.Column="5" Text="{Binding Text}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-            </Grid>
-          </DataTemplate>
-        </ItemsControl.ItemTemplate>
-      </ItemsControl>
-    </ScrollViewer>
-
-    <TextBlock Grid.Row="6" Text="Fehlzeiten der Klasse (alle Fächer, pro Schüler*in und Tag zusammengefasst)"
-               FontWeight="SemiBold" FontSize="13" Margin="0,8,0,0"/>
-    <Grid Grid.Row="7" ColumnDefinitions="70,1*,1.3*,0.5*,0.6*,0.6*,0.8*,1.5*" ColumnSpacing="8" Margin="4,0">
-      <TextBlock Grid.Column="0" Text="Datum" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="1" Text="Schüler*in" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="2" Text="Fächer" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="3" Text="Std." FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="4" Text="Fehlstd." FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="5" Text="Fehlmin." FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="6" Text="Status" FontSize="11" Opacity="0.6"/>
-      <TextBlock Grid.Column="7" Text="Grund / Notiz" FontSize="11" Opacity="0.6"/>
-    </Grid>
-    <ScrollViewer Grid.Row="8">
-      <ItemsControl ItemsSource="{Binding AbsenceEntries}">
-        <ItemsControl.ItemTemplate>
-          <DataTemplate x:DataType="vm:ClassAbsenceDaySummaryRow">
-            <Border Background="{Binding RowBackground}" CornerRadius="4" Padding="0,2"
-                    ToolTip.Tip="{Binding FullDayTooltip}">
-              <Grid ColumnDefinitions="70,1*,1.3*,0.5*,0.6*,0.6*,0.8*,1.5*" ColumnSpacing="8" Margin="4,1">
-                <TextBlock Grid.Column="0" Text="{Binding DateLabel}" VerticalAlignment="Center"/>
-                <TextBlock Grid.Column="1" Text="{Binding StudentName}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-                <TextBlock Grid.Column="2" Text="{Binding SubjectsLabel}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-                <TextBlock Grid.Column="3" Text="{Binding PeriodsLabel}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-                <TextBlock Grid.Column="4" Text="{Binding TotalAbsentPeriods}" VerticalAlignment="Center"/>
-                <TextBlock Grid.Column="5" Text="{Binding TotalAbsentMinutes}" VerticalAlignment="Center"/>
-                <TextBlock Grid.Column="6" Text="{Binding StatusLabel}" VerticalAlignment="Center" TextWrapping="Wrap"/>
-                <StackPanel Grid.Column="7" Spacing="0">
-                  <TextBlock Text="{Binding ReasonLabel}" TextWrapping="Wrap"/>
-                  <TextBlock Text="{Binding Note}" FontSize="11" Opacity="0.6" TextWrapping="Wrap"
-                             IsVisible="{Binding Note, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
-                </StackPanel>
-              </Grid>
-            </Border>
-          </DataTemplate>
-        </ItemsControl.ItemTemplate>
-      </ItemsControl>
-    </ScrollViewer>
-
-    <TextBlock Grid.Row="9" Text="{Binding Status}" FontSize="12" TextWrapping="Wrap"/>
-  </Grid>
-</UserControl>

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherDetailsView.axaml.cs

@@ -1,17 +0,0 @@
-using Avalonia.Controls;
-using Avalonia.Interactivity;
-using LehrerApp.Desktop.ViewModels.ClassTeacher;
-
-namespace LehrerApp.Desktop.Views.ClassTeacher;
-
-public partial class ClassTeacherDetailsView : UserControl
-{
-    public ClassTeacherDetailsView() => InitializeComponent();
-
-    private void OnClearStudentFilterClick(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is not ClassTeacherDetailsViewModel vm) return;
-        vm.StudentFilter = "";
-        vm.LoadCommand.Execute(null);
-    }
-}

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherOverviewView.axaml

@@ -5,55 +5,259 @@
              x:Class="LehrerApp.Desktop.Views.ClassTeacher.ClassTeacherOverviewView"
              x:DataType="vm:ClassTeacherOverviewViewModel">
 
+  <UserControl.Styles>
+    <Style Selector="Border.metric">
+      <Setter Property="Background" Value="#11151B"/>
+      <Setter Property="BorderBrush" Value="#2A3038"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="8"/>
+      <Setter Property="Padding" Value="14,12"/>
+      <Setter Property="Margin" Value="0,0,10,0"/>
+    </Style>
+    <Style Selector="Button.filter">
+      <Setter Property="Background" Value="Transparent"/>
+      <Setter Property="BorderBrush" Value="#343B45"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="6"/>
+      <Setter Property="Padding" Value="16,6"/>
+      <Setter Property="FontSize" Value="12"/>
+    </Style>
+    <Style Selector="Button.filter.active">
+      <Setter Property="Background" Value="#173765"/>
+      <Setter Property="BorderBrush" Value="#3C86F7"/>
+      <Setter Property="Foreground" Value="#FFFFFF"/>
+    </Style>
+    <Style Selector="Button.rosterRow">
+      <Setter Property="HorizontalAlignment" Value="Stretch"/>
+      <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+      <Setter Property="Background" Value="#0E1217"/>
+      <Setter Property="BorderBrush" Value="#262C34"/>
+      <Setter Property="BorderThickness" Value="1,0,1,1"/>
+      <Setter Property="Padding" Value="0"/>
+      <Setter Property="MinHeight" Value="48"/>
+    </Style>
+    <Style Selector="Button.rosterRow:pointerover /template/ ContentPresenter">
+      <Setter Property="Background" Value="#171D25"/>
+    </Style>
+    <Style Selector="Border.sidePanel">
+      <Setter Property="Background" Value="#11151B"/>
+      <Setter Property="BorderBrush" Value="#2A3038"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="8"/>
+      <Setter Property="Padding" Value="14"/>
+      <Setter Property="Margin" Value="0,0,0,10"/>
+    </Style>
+    <Style Selector="TextBlock.sectionLabel">
+      <Setter Property="FontSize" Value="13"/>
+      <Setter Property="FontWeight" Value="SemiBold"/>
+      <Setter Property="Margin" Value="4,10,0,6"/>
+    </Style>
+  </UserControl.Styles>
+
   <Grid>
-    <!-- Hinweis, solange in den Einstellungen keine Klasse ausgewählt ist -->
     <StackPanel IsVisible="{Binding !HomeroomClassConfigured}" HorizontalAlignment="Center"
-                VerticalAlignment="Center" Spacing="12" MaxWidth="360">
+                VerticalAlignment="Center" Spacing="12" MaxWidth="380">
-      <TextBlock Text="🎓" FontSize="40" HorizontalAlignment="Center"/>
+      <Border Width="56" Height="56" CornerRadius="28" Background="#173765" HorizontalAlignment="Center">
-      <TextBlock Text="Noch keine Klasse ausgewählt" FontSize="16" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+        <TextBlock Text="KL" FontSize="18" FontWeight="Bold" Foreground="#66A3FF"
-      <TextBlock TextWrapping="Wrap" TextAlignment="Center" FontSize="13" Opacity="0.7"
+                   HorizontalAlignment="Center" VerticalAlignment="Center"/>
+      </Border>
+      <TextBlock Text="Noch keine Klasse ausgewählt" FontSize="18" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+      <TextBlock TextWrapping="Wrap" TextAlignment="Center" FontSize="13" Opacity="0.65"
                  Text="Wähle in den WebUntis-Einstellungen die Klasse aus, deren Klassenlehrer/-in du bist."/>
       <Button Content="Zu den Einstellungen" Command="{Binding GoToSettingsCommand}" HorizontalAlignment="Center"/>
     </StackPanel>
 
     <TabbedPage IsVisible="{Binding HomeroomClassConfigured}" TabPlacement="Top"
                 SelectedIndex="{Binding ActiveTabIndex, Mode=TwoWay}">
-
       <ContentPage Header="Übersicht">
-        <Grid RowDefinitions="Auto,Auto,*" Margin="16" RowSpacing="8">
+        <Grid RowDefinitions="Auto,Auto,*" Margin="16,12,16,16" RowSpacing="10">
-          <TextBlock Grid.Row="0" Text="{Binding HomeroomClassName, StringFormat='Klasse {0}'}"
+          <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
-                     FontSize="18" FontWeight="SemiBold"/>
+            <StackPanel Grid.Column="0" Spacing="2">
-          <TextBlock Grid.Row="1" Text="{Binding Status}" FontSize="12" Opacity="0.7"/>
+              <TextBlock Text="{Binding HomeroomClassName, StringFormat='Klasse {0}'}"
-          <ScrollViewer Grid.Row="2">
+                         FontSize="24" FontWeight="SemiBold"/>
-            <ItemsControl ItemsSource="{Binding Roster}">
+              <TextBlock Text="Klassenlehrer-Übersicht" FontSize="13" Opacity="0.58"/>
-              <ItemsControl.ItemTemplate>
+            </StackPanel>
-                <DataTemplate x:DataType="vm:ClassTeacherRosterRow">
+            <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="10" VerticalAlignment="Center">
-                  <Button HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+              <TextBlock Text="{Binding LastUpdatedLabel}" FontSize="11" Opacity="0.55" VerticalAlignment="Center"/>
-                          Background="Transparent" BorderThickness="0" Padding="8,6"
+              <Button Content="↻  Aktualisieren" Command="{Binding LoadCommand}" IsEnabled="{Binding !Busy}"
-                          Command="{Binding $parent[ItemsControl].((vm:ClassTeacherOverviewViewModel)DataContext).ShowDetailsForStudentCommand}"
+                      Background="Transparent" BorderThickness="0" Foreground="#5795F5"/>
-                          CommandParameter="{Binding}">
+            </StackPanel>
-                    <Grid ColumnDefinitions="Auto,*,Auto">
+          </Grid>
-                      <TextBlock Grid.Column="0" Text="{Binding StatusIcon}" FontSize="16" Width="28"
+
-                                 ToolTip.Tip="{Binding AbsenceTooltip}"/>
+          <Grid Grid.Row="1" ColumnDefinitions="*,*,*,*">
-                      <TextBlock Grid.Column="1" Text="{Binding StudentName}" VerticalAlignment="Center"/>
+            <Border Grid.Column="0" Classes="metric">
-                      <Border Grid.Column="2" Background="#1976D2" CornerRadius="8" Padding="6,1"
+              <Grid ColumnDefinitions="36,*">
-                              IsVisible="{Binding HasRecentClassRegisterEntry}"
+                <TextBlock Text="◉" FontSize="22" Foreground="#4C8DFF" VerticalAlignment="Center"/>
-                              ToolTip.Tip="Klassenbucheintrag einer anderen Lehrkraft in den letzten 7 Tagen">
+                <StackPanel Grid.Column="1"><TextBlock Text="{Binding StudentCount}" FontSize="22" FontWeight="SemiBold"/><TextBlock Text="Schüler*innen" FontSize="11" Opacity="0.6"/></StackPanel>
-                        <TextBlock Text="Klassenbuch" Foreground="White" FontSize="10"/>
+              </Grid>
-                      </Border>
+            </Border>
-                    </Grid>
+            <Border Grid.Column="1" Classes="metric">
-                  </Button>
+              <Grid ColumnDefinitions="36,*">
-                </DataTemplate>
+                <TextBlock Text="△" FontSize="24" Foreground="#F59E0B" VerticalAlignment="Center"/>
-              </ItemsControl.ItemTemplate>
+                <StackPanel Grid.Column="1"><TextBlock Text="{Binding TodayAlertCount}" FontSize="22" FontWeight="SemiBold"/><TextBlock Text="heute auffällig" FontSize="11" Opacity="0.6"/></StackPanel>
-            </ItemsControl>
+              </Grid>
-          </ScrollViewer>
+            </Border>
+            <Border Grid.Column="2" Classes="metric">
+              <Grid ColumnDefinitions="36,*">
+                <TextBlock Text="!" FontSize="22" Foreground="#FF5A67" VerticalAlignment="Center"/>
+                <StackPanel Grid.Column="1"><TextBlock Text="{Binding TodayUnexcusedCount}" FontSize="22" FontWeight="SemiBold"/><TextBlock Text="unentschuldigt" FontSize="11" Opacity="0.6"/></StackPanel>
+              </Grid>
+            </Border>
+            <Border Grid.Column="3" Classes="metric" Margin="0">
+              <Grid ColumnDefinitions="36,*">
+                <TextBlock Text="▤" FontSize="21" Foreground="#4C8DFF" VerticalAlignment="Center"/>
+                <StackPanel Grid.Column="1"><TextBlock Text="{Binding RecentClassRegisterCount}" FontSize="22" FontWeight="SemiBold"/><TextBlock Text="Klassenbucheinträge · 7 Tage" FontSize="11" Opacity="0.6"/></StackPanel>
+              </Grid>
+            </Border>
+          </Grid>
+
+          <Grid Grid.Row="2" ColumnDefinitions="*,286" ColumnSpacing="12">
+            <Grid Grid.Column="0" RowDefinitions="Auto,*">
+              <Border Grid.Row="0" Background="#11151B" BorderBrush="#2A3038" BorderThickness="1"
+                      CornerRadius="8" Padding="8" Margin="0,0,0,4">
+                <Grid ColumnDefinitions="Auto,Auto,Auto,*,250" ColumnSpacing="8">
+                  <Button Grid.Column="0" Classes="filter" Classes.active="{Binding AlertsFilterSelected}"
+                          Content="Auffällig" Command="{Binding ShowAlertsCommand}"/>
+                  <Button Grid.Column="1" Classes="filter" Classes.active="{Binding ClassRegisterFilterSelected}"
+                          Content="Klassenbuch" Command="{Binding ShowClassRegisterCommand}"/>
+                  <Button Grid.Column="2" Classes="filter" Classes.active="{Binding AllFilterSelected}"
+                          Content="Alle" Command="{Binding ShowAllCommand}"/>
+                  <TextBox Grid.Column="4" Text="{Binding SearchText, Mode=TwoWay}" PlaceholderText="Schüler*in suchen…"
+                           FontSize="12" MinHeight="32"/>
+                </Grid>
+              </Border>
+              <ScrollViewer Grid.Row="1">
+                <StackPanel>
+                  <TextBlock Classes="sectionLabel" Text="{Binding PrimarySectionTitle}" IsVisible="{Binding HasPrimaryRoster}"/>
+                  <ItemsControl ItemsSource="{Binding PrimaryRoster}">
+                    <ItemsControl.ItemTemplate>
+                      <DataTemplate x:DataType="vm:ClassTeacherRosterRow">
+                        <Button Classes="rosterRow"
+                                Command="{Binding $parent[ItemsControl].((vm:ClassTeacherOverviewViewModel)DataContext).ShowDetailsForStudentCommand}"
+                                CommandParameter="{Binding}">
+                          <Grid ColumnDefinitions="4,42,220,*,150,18" Margin="0">
+                            <Border Grid.Column="0" Background="{Binding StatusBarColor}"/>
+                            <Border Grid.Column="1" Width="28" Height="28" CornerRadius="14" BorderBrush="#4A515C"
+                                    BorderThickness="1" HorizontalAlignment="Center" VerticalAlignment="Center">
+                              <TextBlock Text="{Binding Initials}" FontSize="10" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                            </Border>
+                            <TextBlock Grid.Column="2" Text="{Binding StudentName}" VerticalAlignment="Center" TextTrimming="CharacterEllipsis"/>
+                            <TextBlock Grid.Column="3" Text="{Binding StatusText}" Foreground="{Binding StatusColor}"
+                                       VerticalAlignment="Center" FontSize="12" TextTrimming="CharacterEllipsis"/>
+                            <TextBlock Grid.Column="4" Text="{Binding ClassRegisterLabel}" Foreground="#5795F5"
+                                       VerticalAlignment="Center" FontSize="11"/>
+                            <TextBlock Grid.Column="5" Text="›" FontSize="18" Opacity="0.7" VerticalAlignment="Center"/>
+                          </Grid>
+                        </Button>
+                      </DataTemplate>
+                    </ItemsControl.ItemTemplate>
+                  </ItemsControl>
+
+                  <TextBlock Classes="sectionLabel" Text="{Binding SecondarySectionTitle}" IsVisible="{Binding HasSecondaryRoster}"/>
+                  <ItemsControl ItemsSource="{Binding SecondaryRoster}">
+                    <ItemsControl.ItemTemplate>
+                      <DataTemplate x:DataType="vm:ClassTeacherRosterRow">
+                        <Button Classes="rosterRow"
+                                Command="{Binding $parent[ItemsControl].((vm:ClassTeacherOverviewViewModel)DataContext).ShowDetailsForStudentCommand}"
+                                CommandParameter="{Binding}">
+                          <Grid ColumnDefinitions="4,42,220,*,150,18">
+                            <Border Grid.Column="0" Background="{Binding StatusBarColor}"/>
+                            <Border Grid.Column="1" Width="28" Height="28" CornerRadius="14" BorderBrush="#4A515C" BorderThickness="1"
+                                    HorizontalAlignment="Center" VerticalAlignment="Center">
+                              <TextBlock Text="{Binding Initials}" FontSize="10" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                            </Border>
+                            <TextBlock Grid.Column="2" Text="{Binding StudentName}" VerticalAlignment="Center" TextTrimming="CharacterEllipsis"/>
+                            <TextBlock Grid.Column="3" Text="{Binding StatusText}" Foreground="{Binding StatusColor}"
+                                       VerticalAlignment="Center" FontSize="12"/>
+                            <TextBlock Grid.Column="4" Text="{Binding ClassRegisterLabel}" Foreground="#5795F5" VerticalAlignment="Center" FontSize="11"/>
+                            <TextBlock Grid.Column="5" Text="›" FontSize="18" Opacity="0.7" VerticalAlignment="Center"/>
+                          </Grid>
+                        </Button>
+                      </DataTemplate>
+                    </ItemsControl.ItemTemplate>
+                  </ItemsControl>
+                  <StackPanel IsVisible="{Binding HasNoFilterResults}" HorizontalAlignment="Center" Margin="0,54,0,0" Spacing="6">
+                    <TextBlock Text="Keine passenden Schüler*innen" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+                    <TextBlock Text="Passe Filter oder Suche an." FontSize="12" Opacity="0.55"/>
+                  </StackPanel>
+                </StackPanel>
+              </ScrollViewer>
+            </Grid>
+
+            <ScrollViewer Grid.Column="1">
+              <StackPanel>
+                <Border Classes="sidePanel">
+                  <StackPanel Spacing="9">
+                    <TextBlock Text="Tagesüberblick" FontSize="14" FontWeight="SemiBold"/>
+                    <Grid ColumnDefinitions="10,*,Auto,40"><Border Width="7" Height="7" CornerRadius="4" Background="#73C45A"/><TextBlock Grid.Column="1" Text="Anwesend" FontSize="12"/><TextBlock Grid.Column="2" Text="{Binding PresentCount}"/><TextBlock Grid.Column="3" Text="{Binding PresentPercent, StringFormat='{}{0} %'}" Opacity="0.6" HorizontalAlignment="Right"/></Grid>
+                    <Grid ColumnDefinitions="10,*,Auto,40"><Border Width="7" Height="7" CornerRadius="4" Background="#F59E0B"/><TextBlock Grid.Column="1" Text="Verspätet" FontSize="12"/><TextBlock Grid.Column="2" Text="{Binding LateCount}"/><TextBlock Grid.Column="3" Text="{Binding LatePercent, StringFormat='{}{0} %'}" Opacity="0.6" HorizontalAlignment="Right"/></Grid>
+                    <Grid ColumnDefinitions="10,*,Auto,40"><Border Width="7" Height="7" CornerRadius="4" Background="#4C8DFF"/><TextBlock Grid.Column="1" Text="Fehlzeit · entschuldigt" FontSize="12"/><TextBlock Grid.Column="2" Text="{Binding ExcusedAbsenceCount}"/><TextBlock Grid.Column="3" Text="{Binding ExcusedAbsencePercent, StringFormat='{}{0} %'}" Opacity="0.6" HorizontalAlignment="Right"/></Grid>
+                    <Grid ColumnDefinitions="10,*,Auto,40"><Border Width="7" Height="7" CornerRadius="4" Background="#FF5A67"/><TextBlock Grid.Column="1" Text="Fehlzeit · unentschuldigt" FontSize="12"/><TextBlock Grid.Column="2" Text="{Binding UnexcusedAbsenceCount}"/><TextBlock Grid.Column="3" Text="{Binding UnexcusedAbsencePercent, StringFormat='{}{0} %'}" Opacity="0.6" HorizontalAlignment="Right"/></Grid>
+                  </StackPanel>
+                </Border>
+
+                <Border Classes="sidePanel">
+                  <StackPanel Spacing="8">
+                    <TextBlock Text="Trend · letzte 7 Tage" FontSize="14" FontWeight="SemiBold"/>
+                    <ItemsControl ItemsSource="{Binding TrendDays}">
+                      <ItemsControl.ItemTemplate>
+                        <DataTemplate x:DataType="vm:ClassTeacherTrendDay">
+                          <Grid ColumnDefinitions="42,*,24" Margin="0,2">
+                            <TextBlock Text="{Binding DayLabel}" FontSize="11" Opacity="0.6" VerticalAlignment="Center"/>
+                            <Grid Grid.Column="1" Height="8" VerticalAlignment="Center">
+                              <Border Background="#252B33" CornerRadius="4"/>
+                              <Border Width="{Binding AlertBarWidth}" HorizontalAlignment="Left" Background="#F59E0B" CornerRadius="4"/>
+                            </Grid>
+                            <TextBlock Grid.Column="2" Text="{Binding AlertCount}" FontSize="11" HorizontalAlignment="Right"/>
+                          </Grid>
+                        </DataTemplate>
+                      </ItemsControl.ItemTemplate>
+                    </ItemsControl>
+                    <TextBlock Text="Betroffene Schüler*innen pro Tag" FontSize="10" Opacity="0.45"/>
+                  </StackPanel>
+                </Border>
+
+                <Border Classes="sidePanel" IsVisible="{Binding HasPatternNotices}">
+                  <StackPanel Spacing="8">
+                    <TextBlock Text="Muster erkannt" FontSize="14" FontWeight="SemiBold"/>
+                    <ItemsControl ItemsSource="{Binding PatternNotices}">
+                      <ItemsControl.ItemTemplate>
+                        <DataTemplate x:DataType="vm:ClassTeacherPatternNotice">
+                          <Grid ColumnDefinitions="4,*" Margin="0,3">
+                            <Border Background="{Binding Color}" CornerRadius="2" Margin="0,1,8,1"/>
+                            <StackPanel Grid.Column="1">
+                              <TextBlock Text="{Binding StudentName}" FontSize="12" FontWeight="SemiBold"/>
+                              <TextBlock Text="{Binding Message}" FontSize="11" Opacity="0.62" TextWrapping="Wrap"/>
+                            </StackPanel>
+                          </Grid>
+                        </DataTemplate>
+                      </ItemsControl.ItemTemplate>
+                    </ItemsControl>
+                  </StackPanel>
+                </Border>
+
+                <Border Classes="sidePanel">
+                  <StackPanel Spacing="8">
+                    <TextBlock Text="Nächste Schritte" FontSize="14" FontWeight="SemiBold"/>
+                    <Button Content="Klassenbuch öffnen" Command="{Binding OpenClassRegisterCommand}" HorizontalAlignment="Stretch"/>
+                    <Button Content="Fehlzeiten öffnen" Command="{Binding OpenAbsencesCommand}" HorizontalAlignment="Stretch"/>
+                    <Button Content="Aufgaben &amp; Wiedervorlagen" Command="{Binding GoToWorkloadCommand}"
+                            HorizontalAlignment="Stretch" Background="Transparent"/>
+                  </StackPanel>
+                </Border>
+                <TextBlock Text="{Binding Status}" FontSize="11" TextWrapping="Wrap" Opacity="0.6"/>
+              </StackPanel>
+            </ScrollViewer>
+          </Grid>
         </Grid>
       </ContentPage>
 
-      <ContentPage Header="Details">
+      <ContentPage Header="Klassenbuch">
-        <views:ClassTeacherDetailsView DataContext="{Binding DetailsTab}"/>
+        <views:ClassTeacherRegisterView DataContext="{Binding DetailsTab}"/>
+      </ContentPage>
+      <ContentPage Header="Fehlzeiten">
+        <views:ClassTeacherAbsencesView DataContext="{Binding DetailsTab}"/>
       </ContentPage>
-
     </TabbedPage>
   </Grid>
 </UserControl>

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherRegisterView.axaml

@@ -0,0 +1,58 @@
+<UserControl 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.ClassTeacherRegisterView"
+             x:DataType="vm:ClassTeacherDetailsViewModel">
+  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="16" RowSpacing="10">
+    <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
+      <StackPanel>
+        <TextBlock Text="Klassenbucheinträge" FontSize="22" FontWeight="SemiBold"/>
+        <TextBlock Text="Einträge anderer Lehrkräfte – nur zur Ansicht" FontSize="12" Opacity="0.55"/>
+      </StackPanel>
+      <Button Grid.Column="1" Content="↻  Aus WebUntis aktualisieren" Command="{Binding RefreshCommand}"
+              IsEnabled="{Binding !Busy}" Background="Transparent" Foreground="#5795F5" VerticalAlignment="Center"/>
+    </Grid>
+
+    <Border Grid.Row="1" Background="#11151B" BorderBrush="#2A3038" BorderThickness="1"
+            CornerRadius="8" Padding="10">
+      <Grid RowDefinitions="Auto,Auto" RowSpacing="8">
+        <Grid Grid.Row="0" ColumnDefinitions="155,Auto,*,Auto,*" ColumnSpacing="8">
+          <ComboBox Grid.Column="0" SelectedIndex="{Binding QuickRangeIndex, Mode=TwoWay}">
+            <ComboBoxItem Content="Heute"/><ComboBoxItem Content="Letzte 7 Tage"/><ComboBoxItem Content="Letzte 30 Tage"/>
+          </ComboBox>
+          <TextBlock Grid.Column="1" Text="von" VerticalAlignment="Center" Opacity="0.6"/>
+          <DatePicker Grid.Column="2" SelectedDate="{Binding StartDate}" HorizontalAlignment="Stretch"/>
+          <TextBlock Grid.Column="3" Text="bis" VerticalAlignment="Center" Opacity="0.6"/>
+          <DatePicker Grid.Column="4" SelectedDate="{Binding EndDate}" HorizontalAlignment="Stretch"/>
+        </Grid>
+        <Grid Grid.Row="1" ColumnDefinitions="*,Auto,Auto" ColumnSpacing="8">
+          <TextBox Grid.Column="0" Text="{Binding StudentFilter, Mode=TwoWay}" PlaceholderText="Schüler*in filtern…"/>
+          <Button Grid.Column="1" Content="Anzeigen" Command="{Binding ApplyFilterCommand}" IsEnabled="{Binding !Busy}"/>
+          <Button Grid.Column="2" Content="Filter löschen" Command="{Binding ClearStudentFilterCommand}"
+                  IsVisible="{Binding StudentFilter, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+        </Grid>
+      </Grid>
+    </Border>
+
+    <Grid Grid.Row="2">
+      <DataGrid ItemsSource="{Binding Entries}" AutoGenerateColumns="False" IsReadOnly="True"
+                GridLinesVisibility="Horizontal" BorderBrush="#2A3038" BorderThickness="1"
+                CanUserResizeColumns="True" CanUserSortColumns="True" RowHeight="46">
+        <DataGrid.Columns>
+          <DataGridTextColumn Header="Datum" Binding="{Binding DateLabel}" Width="105"/>
+          <DataGridTextColumn Header="Schüler*in" Binding="{Binding StudentDisplayName}" Width="1.25*"/>
+          <DataGridTextColumn Header="Fach" Binding="{Binding Subject}" Width="0.7*"/>
+          <DataGridTextColumn Header="Lehrkraft" Binding="{Binding TeacherUsername}" Width="0.8*"/>
+          <DataGridTextColumn Header="Kategorie" Binding="{Binding CategoryName}" Width="1*"/>
+          <DataGridTextColumn Header="Gruppe" Binding="{Binding CategoryGroup}" Width="0.8*"/>
+          <DataGridTextColumn Header="Eintrag" Binding="{Binding Text}" Width="2*"/>
+        </DataGrid.Columns>
+      </DataGrid>
+      <StackPanel IsVisible="{Binding !HasEntries}" HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="5">
+        <TextBlock Text="Keine Klassenbucheinträge im gewählten Zeitraum" FontWeight="SemiBold"/>
+        <TextBlock Text="Passe Zeitraum oder Schülerfilter an." FontSize="12" Opacity="0.55"/>
+      </StackPanel>
+    </Grid>
+    <TextBlock Grid.Row="3" Text="{Binding Status}" FontSize="11" Opacity="0.6"/>
+  </Grid>
+</UserControl>

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherRegisterView.axaml.cs

@@ -0,0 +1,8 @@
+using Avalonia.Controls;
+
+namespace LehrerApp.Desktop.Views.ClassTeacher;
+
+public partial class ClassTeacherRegisterView : UserControl
+{
+    public ClassTeacherRegisterView() => InitializeComponent();
+}