Response.TransmitFile always return back an empty file

Question

I Have created a method to download file from server. It 's seem that I can save the file to client, but the saved file is always an empty file( file size = 0KB ).

Did I miss something in my code?

My Front-end code:

@inherits Umbraco.Web.Mvc.UmbracoTemplatePage
@{
      Html.RenderAction("DownloadDocument", "Document", new { documentNode = Umbraco.TypedContent(CurrentPage.Id) });
}

And bellow is my DownloadDocument method in Document controller:

                var fileName = "myFile.docx"
                var filePath = @"D:\myFile.docx"
                Response.ContentType = "application/octet-stream";
                Response.AppendHeader("Content-Disposition", $"attachment; filename={fileName}");
                Response.TransmitFile(Server.MapPath(filePath));
                Response.Flush();
                Response.End();

P/S: If I include File Length in the header, it throw a Failed - Network error from my client browser:

Response.AddHeader("Content-Length", new System.IO.FileInfo(fileName).Length.ToString());

Any help is appreciate! Thanks!

Is filename={fileName} showing value? Can you check that? Post that value as well (if any). — Bijay Koirala, Feb 25 '19 at 03:55
@BijayKoirala: Yes, It have a value. I edited it. Thanks for your feedback! — Nhan Phan, Feb 25 '19 at 04:01
Did you try it with the full path instead of just the filename in your header? e.g. Response.AppendHeader("Content-Disposition", $"attachment; filename={filePath}"); — Janus Pienaar, Feb 25 '19 at 08:58
Also, have a look at my answer fro a related question - https://stackoverflow.com/a/43891035/5474410 — Janus Pienaar, Feb 25 '19 at 09:01
Hi Hanus, It is actually full path, and I also try your related answer, but it does not work( still empty file) — Nhan Phan, Feb 25 '19 at 09:36

Response.TransmitFile always return back an empty file

0 Answers0