file download problem

[mww]

Ive added a file download fucntion to my grid, its works perfectly well on my local development machine, but when i upload it to a hosted server, it wont work !  nothing seems to happen.  In development I get the file dialoge box open in the browser, yet on the live server I dont get that, just the spinning ajax icon

heres the column in my grid

<telerik:GridAttachmentColumn
                       MaxFileSize="1048576"
                       EditFormHeaderTextFormat="Download File:"
                       HeaderText="Download"

                       AttachmentKeyFields="AudioID"
                       FileNameTextField="AudioPath"
                       DataTextField="SongTitle"
                       UniqueName="AttachmentColumn">
                   </telerik:GridAttachmentColumn>

I have this in client settings

<ClientSettings>
                        <ClientEvents OnCommand="gridCommand" />
                    </ClientSettings>

  and this javascript on the page

function gridCommand(sender, args) {
               if (args.get_commandName() == "DownloadAttachment") {
                   var manager = $find('<%= RadAjaxManager.GetCurrent(Page).ClientID %>');
                   manager.set_enableAJAX(false);

                   setTimeout(function () {
                       manager.set_enableAJAX(true);
                   }, 0);
               }
           }

  and finally, this is the server side code

protected void RadGridAudio_ItemCommand(object source, GridCommandEventArgs e)
        {

            if (e.CommandName == RadGrid.DownloadAttachmentCommandName)
            {
                e.Canceled = true;

                GridDownloadAttachmentCommandEventArgs args = e as GridDownloadAttachmentCommandEventArgs;
                string fileName = args.FileName;
                long attachmentId = (int)args.AttachmentKeyValues["AudioID"];

                BusinessLayer.RegistrationAudio audio = new RegistrationAudio();
                audio = registrationManager.GetRegistrationAudio(attachmentId);
                string filePath = audio.AudioPath.Substring(0, audio.AudioPath.LastIndexOf(@"\"));
                string _DownloadableProductFileName = audio.FileName;

                if (audio.AudioPath != null && audio.FileName != null)
                {
                    System.IO.FileInfo FileName = new System.IO.FileInfo(filePath + "\\" + _DownloadableProductFileName);
                    FileStream myFile = new FileStream(filePath + "\\" + _DownloadableProductFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);

                    try
                    {
                        if (FileName.Exists)
                        {
                            HttpContext.Current.Response.Clear();
                            HttpContext.Current.Response.AddHeader("Content-Disposition", "inline;attachment; filename=\"" + FileName.Name + "\"");
                            HttpContext.Current.Response.AddHeader("Content-Length", FileName.Length.ToString());
                            HttpContext.Current.Response.ContentType = "application/octet-stream";
                            HttpContext.Current.Response.TransmitFile(FileName.FullName);
                            HttpContext.Current.Response.Flush();
                        }
                        else
                        {
                            throw new Exception("File not found");
                        }
                    }
                    catch (Exception ex)
                    {
                        HttpContext.Current.Response.ContentType = "text/plain";
                        HttpContext.Current.Response.Write(ex.Message);
                    }
                    finally
                    {
                        HttpContext.Current.ApplicationInstance.CompleteRequest();
                    }
                }

            }
        }

  can anyone see where im going wrong ?

[Andrey]

Hi,

Most probable reason for this behavior is a JavaScript error. You could try to enable script debugging for the browser you are using and check whether you get any JavaScript errors.

Additionally, you could check this help topic article if you are using RadCompression on the hosting server.

Give these suggestions a try and check whether they are applicable for your case.
Kind regards,
Andrey
the Telerik team