ListBoxItem.Selected 事件

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

發生在選取 ListBoxItem 時。

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

public event System.Windows.RoutedEventHandler Selected;

member this.Selected : System.Windows.RoutedEventHandler 

Public Custom Event Selected As RoutedEventHandler 

事件類型

RoutedEventHandler

範例

下列範例示範如何訂閱及處理此事件。

<ListBoxItem Name="lbi0" Selected="OnSelected" Unselected="OnUnselected">Item 0</ListBoxItem>

private void OnSelected(object sender, RoutedEventArgs e)
{
    ListBoxItem lbi = e.Source as ListBoxItem;

    if (lbi != null)
    {
        label1.Content = lbi.Content.ToString() + " is selected.";
    }
}

Private Sub OnSelected(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim lbi As ListBoxItem = TryCast(e.Source, ListBoxItem)

    If lbi IsNot Nothing Then
        label1.Content = lbi.Content.ToString() & " is selected."
    End If
End Sub

備註

若要知道選取 ListBox 專案何時變更，請接 SelectionChanged 聽 事件。

路由事件資訊

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