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