Control.OnDragEnter(DragEventArgs) Method
Definition
Important
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Raises the DragEnter event.
protected:
virtual void OnDragEnter(System::Windows::Forms::DragEventArgs ^ drgevent);protected virtual void OnDragEnter (System.Windows.Forms.DragEventArgs drgevent);abstract member OnDragEnter : System.Windows.Forms.DragEventArgs -> unit
override this.OnDragEnter : System.Windows.Forms.DragEventArgs -> unitProtected Overridable Sub OnDragEnter (drgevent As DragEventArgs)Parameters
- drgevent
- DragEventArgs
A DragEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnDragEnter method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnDragEnter(DragEventArgs) in a derived class, be sure to call the base class's OnDragEnter(DragEventArgs) method so that registered delegates receive the event.
