error controls collection cant be modified it contains code block.....

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Please help me ..

this is my register tag:

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

and i placed calender control for this text box like this

<asp:TextBox ID="txtPollExpDt" runat="server" />
                                                              <asp:ImageButton ID="imgcalnd" runat="server" Height="16" Width="16" ImageUrl="~/images/Calendar.png" />
                                                               <cc1:CalendarExtender ID="calcontl"  runat="server" TargetControlID="txtPollExpDt"
                                                                   PopupButtonID="imgcalnd" />

am getting this error

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

Posted 7-Sep-11 1:35am

hitech_s

Updated 7-Sep-11 1:36am

Wendelius

v3

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Toniyo Jackson · Answer 1 · 2011-09-07T01:40:00

Solution 1

Did you add ScriptManager?.

ASP.NET

<asp:scriptmanager id="ScriptManager1" runat="server">

Posted 7-Sep-11 1:40am

Toniyo Jackson

Updated 7-Sep-11 1:42am

v3

#realJSOP · Answer 2 · 2011-09-07T01:43:00

I googled the error message, and this may be the cause (but we can't know for sure because you didn't post all of the code for the page in question:

http://aspnetresources.com/blog/code_blocks_inside_master_pages_cause_trouble[^]

If that's not it, here's over 38 thousand results returned by google for that error message [^].