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TreeView.OnSelectedItemChanged Method

Raises the SelectedItemChanged event when the SelectedItem property value changes.

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

protected virtual void OnSelectedItemChanged(
	RoutedPropertyChangedEventArgs<Object> e
)

Parameters

e
Type: System.Windows.RoutedPropertyChangedEventArgs<Object>

Provides the item that was previously selected and the item that is currently selected for the SelectedItemChanged event.

The event data that the parameter e provides contains an DependencyPropertyChangedEventArgs.OldValue and a PropertyDataChangedEventArgs.NewValue. The DependencyPropertyChangedEventArgs.OldValue is set to the item that was previously selected, or is set to null if there is no previously selected item. Similarly, the PropertyDataChangedEventArgs.NewValue is set to the newly selected item, or is set to null if no new item is selected.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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