TreeViewItem.Unselected 事件

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

當 IsSelected 的 TreeViewItem 屬性從 true 變更為 false 時發生。

public:
 event System::Windows::RoutedEventHandler ^ Unselected;

public event System.Windows.RoutedEventHandler Unselected;

member this.Unselected : System.Windows.RoutedEventHandler 

Public Custom Event Unselected As RoutedEventHandler 

事件類型

RoutedEventHandler

範例

下列範例示範如何將 事件的事件處理常式 Selected 指派給 TreeViewItem ，以及如何定義事件處理常式。

<TreeViewItem Header="Employee2" 
              Name="Employee2Data">
  <TreeViewItem Header="Work Days" 
                Name="emp2WorkDays" 
                Selected="GetSchedule"
                Unselected="SetSchedule">
    <TreeViewItem Header="Monday" />
    <TreeViewItem Header="Wednesday"/>
  </TreeViewItem>

private void SetSchedule(object sender, RoutedEventArgs e)
{
    //Perform actions when a TreeViewItem
    //control becomes unselected
}

Private Sub SetSchedule(ByVal sender As Object, ByVal e As RoutedEventArgs)
    'Perform actions when a TreeViewItem
    'control becomes unselected
End Sub

備註

當選取範圍從這個 TreeViewItem 變更為控制項中的另一個 TreeViewItemTreeView 時，就會發生此事件。 此事件與 SelectedItemChanged 控制項的 屬性 TreeView 有變更 SelectedItem 時所發生的事件相關。

路由事件資訊

識別碼欄位	UnselectedEvent
路由策略	鼓 泡
代理人	RoutedEventHandler

另請參閱

• IsSelected
• Selected
• SelectedItemChanged