Leadtools.WinForms Namespace > RasterThumbnailBrowser Class : OnDrawItem Method |
protected virtual void OnDrawItem( RasterImageListDrawItemEventArgs e )
'Declaration Protected Overridable Sub OnDrawItem( _ ByVal e As RasterImageListDrawItemEventArgs _ )
'Usage Dim instance As RasterThumbnailBrowser Dim e As RasterImageListDrawItemEventArgs instance.OnDrawItem(e)
protected: virtual void OnDrawItem( RasterImageListDrawItemEventArgs^ e )
Raising an event invokes the event handler through a delegate.
The OnDrawItem 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 OnDrawItem in a derived class, be sure to call the base class's OnDrawItem method so that registered delegates receive the event.