how to use OnTimeRangeSelected [assembly: AssemblyFileVersion("3.7.0.0")]

code as follow:

<DayPilot:DayPilotCalendar ID="DPCalendar" runat="server" DataEndField="end" Width="98%"
DataColumnField="resId" DataStartField="start" DataTextField="name" DataValueField="id"
OnEventMove="DPCalendar_EventMove" Days="7" EventMoveHandling="CallBack" ContextMenuID="DayPilotMenu1"
OnEventMenuClick="DPCalendar_EventMenuClick" EventResizeHandling="CallBack" OnEventResize="DPCalendar_EventResize"
EventClickHandling="Edit" EventClickJavaScript="ReadCalendar(e.value());" Style="left: 0px;
top: 0px" HeightSpec="BusinessHours" ClientObjectName="dpc1" EventEditHandling="CallBack"
OnEventEdit="DPCalendar_EventEdit" EventDeleteHandling="JavaScript" EventDeleteJavaScript="IsDel(e.value());"
OnEventDelete="DPCalendar_EventDelete" TimeFormat="Clock24Hours"
TimeRangeSelectedHandling="CallBack" OnTimeRangeSelected ="DPCalendar_TimeRangeSelected">

but it does not work .how can i do?