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