TreeView.OnSelectedItemChanged Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Raises the SelectedItemChanged event when the SelectedItem property value changes.
Namespace: System.Windows.Controls
Assembly: System.Windows.Controls (in System.Windows.Controls.dll)
Syntax
'Declaration
Protected Overridable Sub OnSelectedItemChanged ( _
e As RoutedPropertyChangedEventArgs(Of Object) _
)
protected virtual void OnSelectedItemChanged(
RoutedPropertyChangedEventArgs<Object> e
)
Parameters
- e
Type: System.Windows.RoutedPropertyChangedEventArgs<Object>
A RoutedPropertyChangedEventArgs<T> that contains the event data.
Remarks
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
Silverlight
Supported in: 5, 4, 3
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.