fix: Selection logic

src/Uno.UI.RuntimeTests/Tests/Windows_UI_Xaml_Controls/Given_ListView.cs

@@ -37,9 +37,12 @@ namespace Uno.UI.RuntimeTests.Tests.Microsoft_UI_Xaml_Controls
 			finger.Press(tapTarget);
 			finger.Release();
 
-			Assert.AreEqual(loggingSelectionInfo.IsSelected(0), true, "Item 0 should remain unselected.");
-			Assert.AreEqual(loggingSelectionInfo.CurrentPosition, 0, "CurrentPosition should be 0 after the tap.");
-			Assert.AreEqual(loggingSelectionInfo.CurrentItem, items[0], "CurrentItem should be 'Item 1' after the tap.");
+			// Confirm that selection has been pushed to the source using the ISelectionInfo
+			Assert.AreEqual(loggingSelectionInfo.IsSelected(0), true, "Item 0 should be selected now.");
+
+			// Confirm that the selection HAS NOT been pushed using the `ICollectionView`
+			Assert.AreEqual(loggingSelectionInfo.CurrentPosition, -1, "CurrentPosition should not have been updated.");
+			Assert.AreEqual(loggingSelectionInfo.CurrentItem, null, "CurrentItem should be not have been updated.");
 		}
 	}
 #endif

src/Uno.UI/UI/Xaml/Controls/ListViewBase/ListViewBase.cs

@@ -611,7 +611,16 @@ namespace Microsoft.UI.Xaml.Controls
 			{
 				//The `ISelectionInfo` handled directly by the `ItemsSource` has precedence over the `ICollectionView`.
 				//If an object implements both interfaces, as WinUI, we make sure to use only the `ISelectionInfo` to avoid conflicting interaction.
-				if (ItemsSource is ICollectionView collectionView and not ISelectionInfo)
+
+				// Ensure that we do not alter the selection if ISelectionInfo is in use
+				if (ItemsSource is ISelectionInfo)
+				{
+					// The selection will be managed by ISelectionInfo, so we do nothing here.
+					// This prevents ICollectionView from interfering with the selection logic.
+					return;
+				}
+
+				if (ItemsSource is ICollectionView collectionView && !(ItemsSource is ISelectionInfo))
 				{
 					//NOTE: Windows seems to call MoveCurrentTo(item); we set position instead to have expected behavior when you have duplicate items in the list.
 					collectionView.MoveCurrentToPosition(clickedIndex);