ComboBox: [WinUI] Interacting with the ComboBox inside RadCollectionView using a mouse pointer on Windows causes application crash

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Last Updated: 20 May 2026 10:59 by ADMIN

Release 14.0.0 (2026 Q2)

Lance

Created on: 09 Apr 2026 08:31

Category: ComboBox

Type: Bug Report

ComboBox: [WinUI] Interacting with the ComboBox inside RadCollectionView using a mouse pointer on Windows causes application crash

having a combobox inside the collectionview, click on the combo to open, then click again on the same location where you clicked to open the combo and exception occurs.

this is the stack trace:

 at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|38_0(Int32 hr)
   at ABI.Microsoft.UI.Input.IGestureRecognizerMethods.ProcessDownEvent(IObjectReference _obj, PointerPoint value)
   at Microsoft.UI.Input.GestureRecognizer.ProcessDownEvent(PointerPoint value)
   at Telerik.Maui.NativeGestureRecognizer.HoldGestureRecognizer_PointerPressed(Object sender, PointerRoutedEventArgs e)
   at ABI.Microsoft.UI.Xaml.Input.PointerEventHandler.Do_Abi_Invoke(IntPtr thisPtr, IntPtr sender, IntPtr e)