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