I hope this helps . A quick glance at the MSDN UWP Drag and Drop page suggests that you need to handle the DragOver event, and indicate what drop operations the control will accept (true in any form of XAML and IIRC winforms etc. as well). In UWP, that's the AccepttedOperation property on the event args object (WPF calls that property Effects and it's a different enum type):
Any of those help This may not the answer for the questions. Actually i moved my drop event code to stop event code of the Sorttable() and my requirement is fulfilled in my real application. Thank you all.
Drag&Drop with WPF WebBrowser control - Drop event not firing