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