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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 nullptr if there is no previously selected item. Similarly, the PropertyDataChangedEventArgs::NewValue is set to the newly selected item, or is set to nullptr 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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