Selector.SelectionChanged イベント


Selector の選択項目が変更されたときに発生します。Occurs when the selection of a Selector changes.

 event System::Windows::Controls::SelectionChangedEventHandler ^ SelectionChanged;
public event System.Windows.Controls.SelectionChangedEventHandler SelectionChanged;
member this.SelectionChanged : System.Windows.Controls.SelectionChangedEventHandler 
Public Custom Event SelectionChanged As SelectionChangedEventHandler 

次の例は、SelectionChanged イベントをリストボックスコントロールにアタッチする方法を示しています。The following example shows how to attach the SelectionChanged event to a list box control.

<TextBox Name="tb" Width="140" Height="30"></TextBox>
<ListBox Name="lb" Width="100" Height="55" SelectionChanged="PrintText" SelectionMode="Single">
  <ListBoxItem>Item 1</ListBoxItem>
  <ListBoxItem>Item 2</ListBoxItem>
  <ListBoxItem>Item 3</ListBoxItem>
  <ListBoxItem>Item 4</ListBoxItem>
  <ListBoxItem>Item 5</ListBoxItem>
  <ListBoxItem>Item 6</ListBoxItem>
  <ListBoxItem>Item 7</ListBoxItem>
  <ListBoxItem>Item 8</ListBoxItem>
  <ListBoxItem>Item 9</ListBoxItem>
  <ListBoxItem>Item 10</ListBoxItem>

次の例は、SelectionChanged イベントの処理方法を示しています。The following example shows how to handle the SelectionChanged event.

void PrintText(object sender, SelectionChangedEventArgs args)
    ListBoxItem lbi = ((sender as ListBox).SelectedItem as ListBoxItem);
    tb.Text = "   You selected " + lbi.Content.ToString() + ".";
Private Sub PrintText(ByVal sender As Object, ByVal e As SelectionChangedEventArgs)

    Dim lbsender As ListBox
    Dim li As ListBoxItem

    lbsender = CType(sender, ListBox)
    li = CType(lbsender.SelectedItem, ListBoxItem)
    tb.Text = "   You selected " & li.Content.ToString & "."
End Sub


このイベントは、選択に変更があったときに発生します。This event occurs whenever there is a change to a selection. 選択内容は、ユーザーの操作だけでなく、バインドやその他の設定値によっても変更できます。A selection can be changed not only by user interaction but also by binding as well as other set values.

ルーティングされたイベント情報Routed Event Information

識別子フィールドIdentifier field SelectionChangedEvent
ルーティング方法Routing strategy バブリングBubbling
委任Delegate SelectionChangedEventHandler