aufräumen

2026-08-12 17:45:02 +02:00
parent 0823a023c9
commit a1e722ace1
27 changed files with 542 additions and 197 deletions
@@ -110,7 +110,15 @@ public partial class SettingsViewModel : ObservableObject
    private void AddSubject()
    {
        if (string.IsNullOrWhiteSpace(NewName)) { ValidationMessage = "Name erforderlich."; return; }
-        _subjects.Save(new Subject { Name = NewName.Trim(), ShortName = NewShort.Trim() });
+        try
+        {
+            _subjects.Save(new Subject { Name = NewName.Trim(), ShortName = NewShort.Trim() });
+        }
+        catch (InvalidOperationException ex)
+        {
+            ValidationMessage = ex.Message;
+            return;
+        }
        NewName = ""; NewShort = ""; ValidationMessage = "";
        LoadSubjects();
    }
@@ -119,7 +127,16 @@ public partial class SettingsViewModel : ObservableObject
    private void DeleteSubject(SubjectListItem? item)
    {
        if (item is null) return;
-        _subjects.Delete(item.Id);
+        try
+        {
+            _subjects.Delete(item.Id);
+        }
+        catch (InvalidOperationException ex)
+        {
+            ValidationMessage = ex.Message;
+            return;
+        }
+        ValidationMessage = "";
        if (CatalogSubject?.Id == item.Id) CatalogSubject = null;
        LoadSubjects();
    }