TreeView.OnItemDrag(ItemDragEventArgs) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Raises the ItemDrag event.
protected:
virtual void OnItemDrag(System::Windows::Forms::ItemDragEventArgs ^ e);protected virtual void OnItemDrag (System.Windows.Forms.ItemDragEventArgs e);abstract member OnItemDrag : System.Windows.Forms.ItemDragEventArgs -> unit
override this.OnItemDrag : System.Windows.Forms.ItemDragEventArgs -> unitProtected Overridable Sub OnItemDrag (e As ItemDragEventArgs)Parameters
An ItemDragEventArgs 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 OnItemDrag 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 OnItemDrag(ItemDragEventArgs) in a derived class, be sure to call the base class's OnItemDrag(ItemDragEventArgs) method so that registered delegates receive the event.
