TreeView.OnSelectedItemChanged Method

Raises the SelectedItemChanged event when the SelectedItem property value changes.

Namespace:  System.Windows.Controls
Assembly:  System.Windows.Controls (in System.Windows.Controls.dll)


Protected Overridable Sub OnSelectedItemChanged ( _
    e As RoutedPropertyChangedEventArgs(Of Object) _
protected virtual void OnSelectedItemChanged(
    RoutedPropertyChangedEventArgs<Object> e



Raising an event invokes the event handler through a delegate. The OnSelectedItemChanged 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 OnSelectedItemChanged in a derived class, make sure to call the base class’s OnSelectedItemChanged method so that registered delegates receive the event.

Version Information


Supported in: 5, 4, 3


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.