Weiß nicht mehr, was ich geändert habe

PrototypChat/App.xaml

@@ -2,7 +2,6 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:ownChat"
-             DispatcherUnhandledException="App_DispatcherUnhandledException"
              StartupUri="LoginMaske.xaml">
     <Application.Resources>
          

PrototypChat/App.xaml.cs

@@ -1,14 +1,37 @@
-using System.Windows.Threading;
+using System;
+using System.Threading.Tasks;
+using System.Windows;
 
 namespace ownChat
 {
     public partial class App
     {
-        private void App_DispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs args)
+        protected override void OnStartup(StartupEventArgs e)
         {
-            new ExceptionWindow(args.Exception) { Owner = MainWindow }.Show();
+            base.OnStartup(e);
 
-            args.Handled = true;
+            SetupExceptionHandling();
+        }
+
+        private void SetupExceptionHandling()
+        {
+            AppDomain.CurrentDomain.UnhandledException += (s, e) =>
+            {
+                new ExceptionWindow((Exception) e.ExceptionObject) { Owner = MainWindow }.Show();
+            };
+
+            DispatcherUnhandledException += (s, e) =>
+            {
+                new ExceptionWindow(e.Exception) { Owner = MainWindow }.Show();
+
+                e.Handled = true;
+            };
+
+            TaskScheduler.UnobservedTaskException += (s, e) =>
+            {
+                new ExceptionWindow(e.Exception) { Owner = MainWindow }.Show();
+                e.SetObserved();
+            };
         }
     }
 }

PrototypChat/MainWindow.xaml.cs

@@ -13,6 +13,7 @@ namespace ownChat
     {
         private readonly ChatEmojisView _EmojiView;
 
+
         public MainWindow(ChatDatenUebergabe x)
         {
             InitializeComponent();