在年模式下单击Silverlight日历中的月份,获取所选月份并保持年模式?

有一个DisplayModeChanged事件可以使用。我的案子我需要选定月份的第一天和最后一天。。。下面的代码可以满足我的需要。

private void CalendarDisplayModeChanged(object sender, CalendarModeChangedEventArgs e)
{    
    //control might be null at start up so check for null
    //probably could hook up event in Loaded or constructor instead of xaml to prevent this
    if (calendarInYearMode != null) {
          //reset back to year mode
        calendarInYearMode.DisplayMode = CalendarMode.Year;
        if (calendarInYearMode.DisplayDate != DateTime.MinValue) {
            var beginningOfMonthDate = calendarInYearMode.DisplayDate;
            var endOfMonthDate = calendarInYearMode.DisplayDate.AddMonths(1).AddDays(-1);       
        }
    }
}