SelectionChanged プロパティ (CalendarClientEvents)

// The client event 'SelectionChanged' takes two parameters sender and e
 // sender  is the object which is raising the event
 // e is the CalendarSelectionChangedEventArgs

 
 function WebMonthCalendar1_SelectionChanged(sender, e) {

     //Gets array of new dates             
     var dates = e.get_dates();

     //Gets array of old dates
     var oldDates = e.get_dates();
}