Question

I have a radgrid which should update when a checkboxlist is changed(achieved on a on selected event which is triggered by AutoPostBack) however when I check a checkbox in the list the RadAjaxLoading picture will work correctly to display the loading image over where the RadGrid is however it will never go away and re-display the grid. According to console errors in my web browser, I keep getting a error of:

Uncaught TypeError: Object [object Object] has no method ‘_destroyTree’

This is how i’ve set up my manager if it helps at all:

<telerik:RadAjaxManager ID="RadAjaxManagerNotesView" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="RadGridNotes">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="RadGridNotes" LoadingPanelID="RadAjaxLoadingPanel" />
            </UpdatedControls>
        </telerik:AjaxSetting>
        <telerik:AjaxSetting AjaxControlID="CheckBoxListCategories">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="RadGridNotes" 
                    LoadingPanelID="RadAjaxLoadingPanel" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManager>

Can anybody help me solve this error? The RadGrid will never be re-displayed as of current

Answer 1

Found the error to be an incompatibility with .NET 4.0 and an old version of telerik(2009) managed to get around the error by using the following patch in a separate JavaScript file and including it in the footer of my master page.

http://www.telerik.com/ClientsFiles/203221_default.zip