Problem in Ajax post back

[Velkumar]

Hi,

I have a radpanelbar in a RadAjaxUpdate panel . I need to post back the page when i click or expand  the radpanel item . But got an error.
System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).    at System.Web.UI.ControlCollection.AddAt(Int32 index, Control child)     at Telerik.Web.UI.RadAjaxControl.MoveUpdatePanel(Control initiator, Control updated)   

I have the following code

<telerik:RadAjaxPanel ID="DemoPanelBarPanel" runat="server" EnableAJAX="true">

    <telerik:RadPanelBar ID="uxProfileList" OnClientItemClicked="OnClientItemExpand" OnClientItemExpand="OnClientItemExpand" ExpandMode="FullExpandedItem" Width="100%" runat="server">

                            <Items>
                                <telerik:RadPanelItem runat="server" Text="Personal Info" Value="PersonalInfo" Font-Bold="true"  >
                                </telerik:RadPanelItem>
                                <telerik:RadPanelItem runat="server" Text="Profile Info" Value="ProfileInfo" Font-Bold="true" >
                                </telerik:RadPanelItem>
                                <telerik:RadPanelItem runat="server" Text="Education" Value="Education" Font-Bold="true" >
                                </telerik:RadPanelItem>
                                <telerik:RadPanelItem runat="server" Text="WorkExperience" Value="WorkExperience" Font-Bold="true" >
                                </telerik:RadPanelItem>
                            </Items>

                        </telerik:RadPanelBar>
</telerik:RadAjaxPanel>

<script  type="text/javascript" language="javascript">

    function OnClientItemExpand(sender, args) {



        $find("<%= DemoPanelBarPanel.ClientID%>").ajaxRequestWithTarget("<%= DemoPanelBarPanel.ClientID%>", args.get_item().get_value());


    }
</script>

DemoPanelBarPanel.AjaxRequest += new RadAjaxControl.AjaxRequestDelegate(OnProfileAjaxPanelAjaxRequest);

void OnProfileAjaxPanelAjaxRequest(object sender, AjaxRequestEventArgs e)
       {
          if (e.Argument.Equals("PersonalInfo"))
           {
              RadPanelItem item = uxProfileList.Items.FindItemByValue(e.Argument);
           }
       }

[Dimitar Terziev]

Hi,

Please try to enclose your javascript in a RadCodeBlock and check whether the problem persists.

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
          <script type="text/javascript" language="javascript">

              function OnClientItemExpand(sender, args) {



                  $find("<%= DemoPanelBarPanel.ClientID%>").ajaxRequestWithTarget("<%= DemoPanelBarPanel.ClientID%>", args.get_item().get_value());


              }
          </script>
      </telerik:RadCodeBlock>

All the best,
Dimitar Terziev
the Telerik team