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DatePicker.CalendarOpened Event

.NET Framework (current version)
 

Occurs when the drop-down Calendar is opened.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public event RoutedEventHandler CalendarOpened

<DatePicker CalendarOpened="eventhandler"/>

The following example creates a DatePicker and provides instructions to the user. When the user opens or closes the Calendar, the instructions are updated.

<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";
}

.NET Framework
Available since 4.0
Silverlight
Available since 2.0
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