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