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