I also have a double postback issue but I think it will be resolved once this issue is resolved. I have this radgrid that appears to be getting data but it is not displaying. After binding the grid, the grid.Items.Count is set to the number of rows expected. I'll include the ajax manager settings and grid. Thanks!
<telerik:radajaxmanager id="RadAjaxManager1" runat="server"> <clientevents onrequeststart="onRequestStart" /> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="RadAjaxManager1"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadAjaxPanel1"> </telerik:AjaxUpdatedControl> </UpdatedControls> </telerik:AjaxSetting> <telerik:AjaxSetting AjaxControlID="RadBtnRetrieve"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadPanelBar1" loadingpanelid="RadAjaxLoadingPanel1"> </telerik:AjaxUpdatedControl> <telerik:ajaxupdatedcontrol controlid="RadAjaxPanel1" loadingpanelid="RadAjaxLoadingPanel1" /> </UpdatedControls> </telerik:AjaxSetting> <telerik:AjaxSetting AjaxControlID="RadGridPartsWashers"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadGridPartsWashers" loadingpanelid="RadAjaxLoadingPanel1"> </telerik:AjaxUpdatedControl> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings> </telerik:radajaxmanager><telerik:radajaxpanel ID="RadAjaxPanel1" runat="server" loadingpanelid="RadAjaxLoadingPanel1" enableajax="true"> <table> <tr> <td> <telerik:RadGrid ID="RadGridPartsWashers" runat="server" Width="100%" AllowPaging="True" CellSpacing="0" GridLines="None" AllowSorting="True" AutoGenerateColumns="False" CssClass="RadGrid.rgMasterTable" onneeddatasource="RadGridPartsWashers_NeedDataSource"> <ClientSettings> <Selecting AllowRowSelect="True"></Selecting> <Scrolling AllowScroll="True" ScrollHeight="" UseStaticHeaders="True"></Scrolling> <Resizing AllowColumnResize="true" /> </ClientSettings> <MasterTableView EnableHeaderContextMenu="true" EnableNoRecordsTemplate="true" DataKeyNames="AssetNumber" EnableSplitHeaderText="true" TableLayout="Auto" Width="100%"> <PagerStyle AlwaysVisible="true" /> <NoRecordsTemplate> <div> There are no records to display </div> </NoRecordsTemplate> <Columns> ..... </Columns>