DatePicker.CalendarOpened Evento

Definizione

Spazio dei nomi:

System.Windows.Controls

Assembly:

PresentationFramework.dll

Si verifica quando l'oggetto Calendar a discesa viene aperto.

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

public event System.Windows.RoutedEventHandler CalendarOpened;

member this.CalendarOpened : System.Windows.RoutedEventHandler 

Public Custom Event CalendarOpened As RoutedEventHandler 

Public Event CalendarOpened As RoutedEventHandler 

Tipo evento

RoutedEventHandler

Esempio

Nell'esempio seguente viene creato un oggetto DatePicker e vengono fornite istruzioni all'utente. Quando l'utente apre o chiude , Calendarle istruzioni vengono aggiornate.

<StackPanel>
  <TextBlock Name="textBlock1" 
             Text="Enter a date or click the calendar."/>
  <DatePicker CalendarOpened="DatePicker_CalendarOpened"
              CalendarClosed="DatePicker_CalendarClosed"/>
</StackPanel>

private void DatePicker_CalendarOpened(object sender, RoutedEventArgs e)
{
    textBlock1.Text = "Select a date from the calendar";
}

private void DatePicker_CalendarClosed(object sender, RoutedEventArgs e)
{
    textBlock1.Text = "Enter a date or click the calendar";
}

Private Sub DatePicker_CalendarOpened(
             ByVal sender As System.Object,
             ByVal e As System.Windows.RoutedEventArgs)
    textBlock1.Text = "Select a date from the calendar"
End Sub

Private Sub DatePicker_CalendarClosed(
             ByVal sender As System.Object,
             ByVal e As System.Windows.RoutedEventArgs)
    textBlock1.Text = "Enter a date or click the calendar"
End Sub

Commenti

Uso della sintassi XAML per gli attributi

<DatePicker CalendarOpened="eventhandler"/>