Control.OnDragDrop(DragEventArgs) Method

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Raises the DragDrop event.

protected:
 virtual void OnDragDrop(System::Windows::Forms::DragEventArgs ^ drgevent);

protected virtual void OnDragDrop (System.Windows.Forms.DragEventArgs drgevent);

abstract member OnDragDrop : System.Windows.Forms.DragEventArgs -> unit
override this.OnDragDrop : System.Windows.Forms.DragEventArgs -> unit

Protected Overridable Sub OnDragDrop (drgevent As DragEventArgs)

Parameters

drgevent: DragEventArgs

A DragEventArgs that contains the event data.

Implements

OnDragDrop(DragEventArgs)

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnDragDrop 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 OnDragDrop(DragEventArgs) in a derived class, be sure to call the base class's OnDragDrop(DragEventArgs) method so that registered delegates receive the event.