I found an interesting issue when using telerik:RadAjaxManager in SharePoint Site. From the tutorial, you use

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <telerik:AjaxSetting AjaxControlID="RadGrid1">
                <telerik:AjaxUpdatedControl ControlID="RadGrid1" LoadingPanelID="RadAjaxLoadingPanel1" />

You can see the AjaxContrilID is the same as UpdatedControl ID. It works fine on asp .net but when I moved the code to SharePoint as User Control, I found after post back some controls like Validation not working properly. Once you changed the AjaxContrilID to a different name, it works like charm now. Hope it helps someone had same issues.


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