Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.
Namespace:System.Windows Assembly:PresentationCore (in PresentationCore.dll) XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
The PreviewQueryContinueDrag event enables the drag source to declare whether the drag-and-drop operation should be canceled.
This event creates an alias for the DragDrop::PreviewQueryContinueDrag attached event for this class, so that PreviewQueryContinueDrag is part of the class members list when ContentElement is inherited as a base element. Event handlers that are attached to the PreviewQueryContinueDrag event are attached to the underlying DragDrop::PreviewQueryContinueDrag attached event and receive the same event data instance.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)