PreviewDragEnter Event
Collapse the table of content
Expand the table of content

ContentElement.PreviewDragEnter Event


Occurs when the input system reports an underlying drag event with this element as the drag target.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

public event DragEventHandler PreviewDragEnter

This event creates an alias for the DragDrop.PreviewDragEnter attached event for this class, so that PreviewDragEnter is part of the class members list when ContentElement is inherited as a base element. Event handlers that are attached to the PreviewDragEnter event are attached to the underlying DragDrop.PreviewDragEnter attached event and receive the same event data instance.

Identifier field


Routing strategy




  • The corresponding bubbling event is DragEnter.

  • Override OnPreviewDragEnter to implement class handling for this event in derived classes.

.NET Framework
Available since 3.0
Return to top
© 2015 Microsoft