DragDrop.AddPreviewQueryContinueDragHandler Method (DependencyObject, QueryContinueDragEventHandler)
Adds a PreviewQueryContinueDrag event handler to a specified dependency object.
Assembly: PresentationCore (in PresentationCore.dll)
Public Shared Sub AddPreviewQueryContinueDragHandler ( element As DependencyObject, handler As QueryContinueDragEventHandler )
The PreviewQueryContinueDrag event occurs during a drag-and-drop operation, and enables the drag source to determine whether the drag-and-drop operation should be canceled.
Available since 3.0