Selector.SelectionChanged イベント
定義
public:
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
例
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>
</ListBox>
次の例は、SelectionChanged イベントを処理する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
注釈
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 |
DelegateDelegate | SelectionChangedEventHandler |