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The Controls collection cannot be modified because the control contains code blocks

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Sam
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Sam asked on 11 Nov 2015, 10:35 AM

Hi I am not able to solve this error The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

 

this is my script

 

<body>
 

    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager2" runat="server" />
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
        </telerik:RadAjaxLoadingPanel>
        <telerik:RadAjaxManager EnableAJAX="true" ID="RadAjaxManager1" runat="server" DefaultLoadingPanelID="RadAjaxLoadingPanel1">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="FormView1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="FormView1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>


     <telerik:RadScriptBlock  ID="RadScriptBlock1" runat="server">
        <script type="text/javascript">
            var FormName = "frmPerformMaintRecurringAS";
            var FormId = 71;
            var UserId = '<%= Session["UserId"] %>';
            EntityID = FormId;
            var tabstrip;
        </script>
    </telerik:RadScriptBlock>‚Äč

 

 

what am doing wrong?

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Sam
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answered on 11 Nov 2015, 11:03 AM
solved by replacing  <%= with <%#   in entire page
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