Telerik RadDateTimePicker is not working after i register script using ScriptManager.RegisterStartupScript in C# code
Code : ScriptManager.RegisterStartupScript(Page, typeof(Page), "mykey", "showSummaryPopup('TEst Message')", true);
<telerik:RadDateTimePicker id="txtSendingScheduleDate" runat="server" skin="Vista" EnableAjaxSkinRendering="true" EnableViewState="true"dateinput-readonly="false" />