Called before the DragEnter event occurs.
Assembly: System.Windows (in System.Windows.dll)
'Declaration Protected Overridable Sub OnDragEnter ( _ e As DragEventArgs _ )
protected virtual void OnDragEnter( DragEventArgs e )
The OnDragEnter method is called before any event handler for the DragEnter event is called. This method allows derived classes to handle the DragEnter event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnDragEnter in a derived class, be sure to call the base class’s OnDragEnter method so that registered delegates receive the event.
Supported in: 5, 4
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.