ASP.NET MVC 5 - Don't happens anything when try download file

Question

I build a asp.net mvc 5 project and some point i want to download file, the file can be anything for example: 'pdf', 'doc', 'zip'.

I try the following code:

    [HttpGet]
    [Route("Download")]
    public ActionResult DownloadFiles(string data)// data is the name folder where the file/files exists
    {
            string pathFolder = $@"{db.GetDetails().PathToFolder}\{data}";//PathToFolder is the root folder
            if (Directory.Exists(pathFolder))
            {
                string[] files = Directory.GetFiles(pathFolder);
                if (files.Length > 1)
                {
                    using (ZipFile zip = new ZipFile())
                    {
                        zip.AddDirectory(pathFolder);

                        MemoryStream output = new MemoryStream();
                        zip.Save(output);
                        return File(output, "application/zip", "zipfile.zip");
                    }
                }
                else if (files.Length == 1)
                {
                    byte[] fileBytes = System.IO.File.ReadAllBytes(files[0]);
                    string fileName = Path.GetFileName(files[0]);
                    return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
                }

        }

        return null;
    }

js code:

            $.ajax({
                type: 'GET',
                url: '/controllerforexample/Download',
                data: { data: data }// the first date is the variable in the action and the second data is a text.
            });

But nothing happens.

Someone maybe know what can be the problem?

Thanks,

Tal

What do you mean _nothing happens_. Have you debugged your code. Is the method being executed? Are you entering the `if (Directory.Exists(pathFolder))` block? — , Apr 11 '18 at 08:25
Is the method being executed? yes. Are you entering the if (Directory.Exists(pathFolder)) block? yes in the chrome debugger i see the content in the respons — ya ya, Apr 11 '18 at 08:34
Refer [Download Excel file via AJAX MVC](https://stackoverflow.com/questions/16670209/download-excel-file-via-ajax-mvc) — , Apr 11 '18 at 08:39
@StephenMuecke thanks. I change the ajax request to windows.location and it's work!! — ya ya, Apr 11 '18 at 08:58
That is a bit pointless (its just making a completely unnecessary call) - just use a `` to redirect to that method (or use `location.href` directly) — , Apr 11 '18 at 08:59
before the download action i do another ajax call.. so i must doing like that. — ya ya, Apr 11 '18 at 09:02

score 0 · Answer 1 · answered Apr 11 '18 at 08:51

0

Try returning a FileResult not an ActionResult

answered Apr 11 '18 at 08:51

Andy Stannard

1,673
2
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32

OP is already doing that - that is what `return File(...);` is – Apr 11 '18 at 09:25

ASP.NET MVC 5 - Don't happens anything when try download file

1 Answers1