操作RadGrid1，RadAjaxLoadingPanel1不出现-CFANZ编程社区

操作RadGrid1并且有PostBack时，如果RadAjaxLoadingPanel1不出现，要检查以下设置是否正确：

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