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Leadtools.Windows.Annotations Namespace > Classes > AnnObject > Methods > OnHeaderBackgroundChanged Method
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OnHeaderBackgroundChanged Method
Summary
Occurs when the value HeaderBackground property changes.
Syntax
protected virtual void OnHeaderBackgroundChanged(RoutedPropertyChangedEventArgs<Color> e)
Protected Overridable Sub OnHeaderBackgroundChanged( _ByVal e As RoutedPropertyChangedEventArgs(Of Color) _)
protected:virtual void OnHeaderBackgroundChanged(RoutedPropertyChangedEventArgs<Color>^ e)
Parameters
e
A RoutedPropertyChangedEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate.
The OnHeaderBackgroundChanged 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 OnHeaderBackgroundChanged in a derived class, be sure to call the base class's OnHeaderBackgroundChanged method so that registered delegates receive the event.
Requirements
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