Merge pull request #317 from Skaptor/master

Aded LayoutItem null check when processing mouseMiddleClickButton
Dirkster99 · Dec 18, 2021 · f706dc7 · f706dc7
2 parents 9c64608 + 4c65cee
commit f706dc7
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/source/Components/AvalonDock/Controls/LayoutDocumentTabItem.cs b/source/Components/AvalonDock/Controls/LayoutDocumentTabItem.cs
@@ -182,7 +182,11 @@ protected override void OnMouseEnter(MouseEventArgs e)
 		/// <inheritdoc />
 		protected override void OnMouseDown(MouseButtonEventArgs e)
 		{
-			if (e.ChangedButton == MouseButton.Middle && LayoutItem.CloseCommand.CanExecute(null)) LayoutItem.CloseCommand.Execute(null);
+			if (LayoutItem != null && e.ChangedButton == MouseButton.Middle && LayoutItem.CloseCommand.CanExecute(null))
+			{
+				LayoutItem.CloseCommand.Execute(null);
+			}
+
 			base.OnMouseDown(e);
 		}