Fix system tray right-click menu not displaying

src/Wpf.Ui.Tray/Controls/NotifyIcon.cs

@@ -246,6 +246,9 @@ public NotifyIcon()
         internalNotifyIconManager = new Wpf.Ui.Tray.Internal.InternalNotifyIconManager();
 
         RegisterHandlers();
+
+        // Listen for DataContext changes to update ContextMenu
+        DataContextChanged += OnDataContextChanged;
     }
 
     /// <summary>
@@ -363,6 +366,9 @@ protected virtual void Dispose(bool disposing)
 
         System.Diagnostics.Debug.WriteLine($"INFO | {typeof(NotifyIcon)} disposed.", "Wpf.Ui.NotifyIcon");
 
+        // Clean up event handlers
+        DataContextChanged -= OnDataContextChanged;
+
         Unregister();
 
         internalNotifyIconManager.Dispose();
@@ -375,6 +381,13 @@ protected virtual void Dispose(bool disposing)
     protected virtual void OnMenuChanged(ContextMenu contextMenu)
     {
         internalNotifyIconManager.ContextMenu = contextMenu;
+
+        // Set the DataContext for ContextMenu to enable binding
+        if (contextMenu.DataContext == null && DataContext != null)
+        {
+            contextMenu.DataContext = DataContext;
+        }
+
         internalNotifyIconManager.ContextMenu.SetCurrentValue(Control.FontSizeProperty, MenuFontSize);
     }
 
@@ -410,11 +423,11 @@ private static void OnFocusOnLeftClickChanged(DependencyObject d, DependencyProp
         if (e.NewValue is not bool newValue)
         {
             notifyIcon.FocusOnLeftClick = false;
-
+            notifyIcon.internalNotifyIconManager.FocusOnLeftClick = false;
             return;
         }
 
-        notifyIcon.FocusOnLeftClick = newValue;
+        notifyIcon.internalNotifyIconManager.FocusOnLeftClick = newValue;
     }
 
     private static void OnMenuOnRightClickChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
@@ -427,11 +440,11 @@ private static void OnMenuOnRightClickChanged(DependencyObject d, DependencyProp
         if (e.NewValue is not bool newValue)
         {
             notifyIcon.MenuOnRightClick = false;
-
+            notifyIcon.internalNotifyIconManager.MenuOnRightClick = false;
             return;
         }
 
-        notifyIcon.MenuOnRightClick = newValue;
+        notifyIcon.internalNotifyIconManager.MenuOnRightClick = newValue;
     }
 
     private static void OnMenuChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
@@ -455,6 +468,12 @@ private void InitializeIcon()
         internalNotifyIconManager.Icon = Icon;
         internalNotifyIconManager.MenuOnRightClick = MenuOnRightClick;
         internalNotifyIconManager.FocusOnLeftClick = FocusOnLeftClick;
+
+        // Add Menu initialization
+        if (Menu != null)
+        {
+            OnMenuChanged(Menu);
+        }
     }
 
     private void RegisterHandlers()
@@ -466,4 +485,13 @@ private void RegisterHandlers()
         internalNotifyIconManager.MiddleClick += OnMiddleClick;
         internalNotifyIconManager.MiddleDoubleClick += OnMiddleDoubleClick;
     }
+
+    private void OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
+    {
+        // Update ContextMenu DataContext when NotifyIcon DataContext changes
+        if (Menu != null && e.NewValue != null)
+        {
+            Menu.DataContext = e.NewValue;
+        }
+    }
 }

src/Wpf.Ui.Tray/Internal/InternalNotifyIconManager.cs

@@ -178,7 +178,10 @@ protected virtual void OpenMenu()
 
         // Without setting the handler window at the front, menu may appear behind the taskbar
         _ = Interop.User32.SetForegroundWindow(HookWindow.Handle);
-        ContextMenuService.SetPlacement(ContextMenu, PlacementMode.MousePoint);
+
+        // Set placement properties for better positioning
+        ContextMenu.SetCurrentValue(ContextMenu.PlacementProperty, PlacementMode.MousePoint);
+        ContextMenu.SetCurrentValue(ContextMenu.PlacementTargetProperty, null);
 
         // ContextMenu.ApplyMica();
         ContextMenu.SetCurrentValue(ContextMenu.IsOpenProperty, true);