Note: that event should not be interrupted by alert, confirm or similar action, which may break default order or timing of focus and other events of browser.
WebMonthCalendar1.ClientEvents.ListOpened = "WebMonthCalendar1_ListOpened"
WebMonthCalendar1.ClientEvents.ListOpened = "WebMonthCalendar1_ListOpened";
// The client event 'ListOpened' takes two parameters sender and e // sender is the object which is raising the event // e is the CalendarListOpenedEventArgs function WebMonthCalendar1_ListOpened(sender, e) { //Gets the id of the list; 1 – list of Months , 2 – list of Years, 3 – list of Decades. var id = e.get_id(); //Gets the reference of the WebMonthCalendar var calendar = $find("WebMonthCalendar1"); switch (id) { case 1: alert("Please select a month"); //Shows the list of the months calendar.showList(1); break; case 2: alert("Please select a year "); //Shows the list of the years calendar.showList(2); break; case 3: alert("Please select a decade "); //shows the list of the decades calendar.showList(3); } }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2