RadListView + AJAX + Download file

[Marcel]

Hi there,

I have a problem in using the radListView with AJAX.

As you can see in the enclosed image I want the user be able to download a file. (radlistview.png)
When I enable AJAX an error occurs (error.png).
I use the following code:

<asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server">

       

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

        <AjaxSettings>  

            <telerik:AjaxSetting AjaxControlID="paRequestListView">

                <UpdatedControls>

                    <telerik:AjaxUpdatedControl ControlID="paRequestListView" LoadingPanelID="raLoadingPanel"></telerik:AjaxUpdatedControl>

                </UpdatedControls>

            </telerik:AjaxSetting>

        </AjaxSettings>

    </telerik:RadAjaxManagerProxy>

       

    <asp:Panel ID="paRequestListView" runat="server">

         <NMHG:RequestListView id="RequestListView" runat="server"></NMHG:RequestListView>

    </asp:Panel>

     

</asp:Content>

protected void rlvRequest_ItemCommand(object source, RadListViewCommandEventArgs e)
        {
            //Download file
            if (e.CommandName == "Download")
            {
                //show save as dialog
                System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
                response.ClearContent();
                response.Clear();
                response.ContentType = "text/plain";
                response.AddHeader("Content-Disposition", "attachment; filename=" + RequestDownloadFileName + ";");
                response.TransmitFile(ConfigurationManager.AppSettings.Get("Download directory") + RequestDownloadFileName);
                response.End();
            }
        }

When I remove the <telerik:RadAjaxManagerProxy> tag from the code above i am able to download the file.
Any idea why my download not works when AJAX is enabled?

I also noticed the LoadingPanel for my RadListView is never shown. AJAX functions normal in my RadListView.
I use the same code for my RadGrids were the LoadingPanel is shown.


Regards,

Marcel


[Maria Ilieva]

Hi Marcel,

I would suggest you to review the help topic below which elaborates on downloading files with Ajax:
http://www.telerik.com/help/aspnet-ajax/ajax-download.html

I hope this helps.


Kind regards,
Maria Ilieva
the Telerik team