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[Solved] OnRequestStart not called

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This is a migrated thread and some comments may be shown as answers.

RvdGrint asked on 23 May 2011, 02:59 PM

Hello I've the following problem:

I've a page, Default.aspx, which contains a placeholder for a dynamically loaded UserControl (#UC1). UC1 cotains a fixed programmed UserControl UC1A which contains a RadGrid with a LinkButton defined in the CommandItemTemplate. When clicking on the linkbutton I expect the OnRequestStarted will be called but the alert message in the script function never appears. It seems the postback is being cancelled.

So masterpage:

...

<head>

..

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function onRequestStart(sender, args) {

alert(args.get_eventTarget());

if (args.get_eventTarget().indexOf("ExportToExcelButton") >= 0 ||

args.get_eventTarget().indexOf("ExportToCsvButton") >= 0 ||

args.get_eventTarget().indexOf("ExportToPdfButton") >= 0) {

args.set_enableAjax(false);

}

</script>

</telerik:RadCodeBlock>

<asp:ContentPlaceHolder ID="HeadContent" runat="server">

</asp:ContentPlaceHolder>

</head>

<body>

<form runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<ClientEvents OnRequestStart="onRequestStart" />

</telerik:RadAjaxManager>

....

</form>

....

</body>

UC1A contains:

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="rgRelation">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="rgRelation" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManagerProxy>

asp:Label ID="lblUCCRMTitle" runat="server" Text="Relation" CssClass="styleTitle"></asp:Label>

<asp:Panel ID="pnlRelation" runat="server" Width="100%" ScrollBars="auto">

<telerik:RadGrid ID="rgRelation"

runat="server"

AllowFilteringByColumn="True"

AllowPaging="True" AllowSorting="True"

AutoGenerateColumns="False"

CellSpacing="0"

DataSourceID="sqlDSRGRelation"

GridLines="None"

PageSize="20"

Skin="Windows7"

OnItemCommand="rgRelation_ItemCommand"

onitemcreated="rgRelation_ItemCreated">

<ExportSettings ExportOnlyData="true" Excel-Format="ExcelML" >

<Excel Format="ExcelML"></Excel>

</ExportSettings>

<ClientSettings><Resizing ClipCellContentOnResize="false"/>

</ClientSettings>

<MasterTableView DataKeyNames="RelationID" DataSourceID="sqlDSRGRelation" CommandItemDisplay="Bottom" InsertItemDisplay="Bottom">

<CommandItemTemplate>

<div id="CommandItemTemplate">

<div id="CommandItemTemplateLeft">

<asp:LinkButton ID="lbnAddRecord" runat="server" CssClass="CommandItemLinkButton" CommandName="InitInsert"></asp:LinkButton>

<span class="CommandItemTemplateDivider">|</span>

<asp:LinkButton ID="lbnExportToExcel" runat="server" CssClass="CommandItemLinkButton" CommandName="ExportToExcel"></asp:LinkButton>

<asp:LinkButton ID="lbnExportToPDF" runat="server" CssClass="CommandItemLinkButton" CommandName="ExportToPdf"></asp:LinkButton>

<asp:LinkButton ID="lbnExportToCSV" runat="server" CssClass="CommandItemLinkButton" CommandName="ExportToCsv"></asp:LinkButton>

<span class="CommandItemTemplateDivider">|</span>

<asp:LinkButton ID="lbnRefresh" runat="server" CssClass="CommandItemLinkButton" CommandName="RebindGrid"></asp:LinkButton>

<span class="CommandItemTemplateDivider">|</span>

<asp:LinkButton ID="lbnSaveGridLayout" runat="server" CssClass="CommandItemLinkButton" CommandName="SaveGridLayout"></asp:LinkButton>

</div>

</CommandItemTemplate>

<CommandItemSettings ShowExportToPdfButton="true"

ExportToPdfText="Export to PDF"

ShowExportToExcelButton="true"

ExportToExcelText="Export to Excel"

ShowExportToCsvButton="true"

ExportToCsvText="Export to CSV" >

</CommandItemSettings>

..........

7 Answers, 1 is accepted

answered on 24 May 2011, 10:06 AM

I've some additional information.

On click of a menu-item in my menu I peform a __doPostBack('pnlUpdateRelation', arguments) form client-side JavaScript. Based on the provided arguments I'll load a UserControl on my default.aspx. When I change the __doPostBack('pnlUpdateRelation', arguments) to __doPostBack('main', arguments), 'main' is a div on the Site.Master the onRequestStart function is fired. So when the postback is perfomed on a partitial part of the page the onRequestStart is not fired from that particular part of the page if UserControls are added there.

How can I force the website to executed the OnRequestStart.