Merge pull request #106 from LukeOrdelmans/bugfix/fix-null-reference-…

…on-disconnected-treenode Fixed a NullReferenceException caused by handling a left mouse click on a child node
icsharpcode · May 23, 2023 · 0dfcaeb · 0dfcaeb
2 parents 4f44439 + 92292dc
commit 0dfcaeb
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/WpfDesign.Designer/Project/OutlineView/OutlineTreeView.cs b/WpfDesign.Designer/Project/OutlineView/OutlineTreeView.cs
@@ -56,10 +56,8 @@ public override bool ShouldItemBeVisible(DragTreeViewItem dragTreeViewitem)
 		protected override void SelectOnly(DragTreeViewItem item)
 		{
 			base.SelectOnly(item);
-
-			var node = item.DataContext as IOutlineNode;
 
-			if (node.DesignItem != null) {
+			if (item.DataContext is IOutlineNode node && node.DesignItem != null) {
 				var surface = node.DesignItem.View.TryFindParent<DesignSurface>();
 				if (surface != null)
 					surface.ScrollIntoView(node.DesignItem);