PreviewDragLeave Event
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ContentElement.PreviewDragLeave Event


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

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

public event DragEventHandler PreviewDragLeave

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

Identifier field


Routing strategy




  • The corresponding bubbling event is DragLeave.

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

.NET Framework
Available since 3.0
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