Extender control 'CE' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl()

Question

Hi
   I am integrating Ajax Enabled Services Site with SSRS and I am using the AJAX  Control ToolKit CalenderExtender Control. I add the reference of the AJAX Assembly and I wrote the below code in .aspx page.
 
<cc1:CalendarExtender ID="CalendarExtender1" runat="server">
    </cc1:CalendarExtender>
          
          <asp:ImageButton runat="Server" ID="img_pcsd" ImageUrl="~/Images/cal.gif" AlternateText="Click here to display calendar" />
                                    <cc1:CalendarExtender ID="CalendarExtender1" runat="server"
                                    TargetControlID="txt_PriceCheckStartdate" PopupButtonID="img_pcsd" CssClass="MyCalendar"  >
                                    </cc1:CalendarExtender>
                                    <img alt="Click here to clear date" src="../Images/disablecal.gif" width="16"
                                        height="16" onclick="ClearCalValue('<%= txt_PriceCheckStartdate.ClientID %>')" onmouseover="window.status='';return true;"
                                        onmouseout="window.status='Click to Clear Date';return true;" />


     I used the Calender Control to give start date and end date as a report perameters. It works fine when i used in the main report. When i click the link in the main report i go to subreport and there i put a back image button when we press that i passed the perameters of the main report. At that time i got the error that "Extender control 'CalendarExtender3' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() ".

Can any one help in this regard. Where can i register the calender extender control other than .aspx page.

Thanks
DVB

Answer 1

Hi u got solution for this