perf: implement custom flag for TreeViewList

unoplatform · Sep 13, 2023 · 562545e · 562545e
1 parent 19cd250
commit 562545e
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/src/Uno.UI/Microsoft/UI/Xaml/Controls/TreeView/TreeViewList.cs b/src/Uno.UI/Microsoft/UI/Xaml/Controls/TreeView/TreeViewList.cs
@@ -35,7 +35,7 @@ public partial class TreeViewList : ListView
 		public TreeViewList()
 		{
 			ListViewModel = new TreeViewViewModel();
-
+			IsCustomReorder = true;
 			DragItemsStarting += OnDragItemsStarting;
 			DragItemsCompleted += OnDragItemsCompleted;
 			ContainerContentChanging += OnContainerContentChanging;

diff --git a/src/Uno.UI/UI/Xaml/Controls/ListViewBase/ListViewBase.DragDrop.cs b/src/Uno.UI/UI/Xaml/Controls/ListViewBase/ListViewBase.DragDrop.cs
@@ -25,6 +25,7 @@ partial class ListViewBase
 		private const string ReorderItemFormatId = DataPackage.UnoPrivateDataPrefix + "__list__view__base__source__item__";
 		private const string ReorderContainerFormatId = DataPackage.UnoPrivateDataPrefix + "__list__view__base__source__container__";
 		private const string DragItemsFormatId = DataPackage.UnoPrivateDataPrefix + "__list__view__base__items__";
+		internal bool IsCustomReorder;
 
 		public event DragItemsStartingEventHandler DragItemsStarting;
 		public event TypedEventHandler<ListViewBase, DragItemsCompletedEventArgs> DragItemsCompleted;
@@ -153,7 +154,7 @@ private static void OnItemContainerDragStarting(UIElement sender, DragStartingEv
 					that.DragLeave -= OnReorderDragLeave;
 					that.Drop -= OnReorderCompleted;
 
-					if (that is not Microsoft.UI.Xaml.Controls.TreeViewList)
+					if (!that.IsCustomReorder)
 					{
 						that.DragEnter += OnReorderDragUpdated;
 						that.DragOver += OnReorderDragUpdated;