Question

I ve been working all weekend on a Messaging system for my website so users can send and receive messages on my site internally.

I have my table schemas worked out, and right now I can send basic messages to different users.

Now, I m working on the attachments portion.

How can I create my action methods so that they accept Files? Ideally I would like to allow for a controller action that accepts an arbitrary number of files. Once they have been passed into the controller action I m going to save them somewhere on my webserver.

Can anyone show me an example of a controller action that accepts files as part of its parameters?

Answer 1

(Error handling omitted.)

    [AcceptVerbs(HttpVerbs.Post)]
    public ActionResult FilePost()
    {
        for (var i = 0; i < Request.Files.Count; i++)
        {
            var filebase = Request.Files.Get(i);
            string filePath = Server.MapPath(Url.Content("~/Content/UserContent/"));
            var fileName = // whatever
            filebase.SaveAs(Path.Combine(filePath, fileName));
         }

        return RedirectToAction("Something");
    }

Answer 2

I believe the object you re looking for is Request.Files example snippet below.

foreach (string file in Request.Files) {
    var hpf = Request.Files[file];

    if (hpf.ContentLength == 0)
        continue;

    myFileEntity.ContentType = hpf.ContentType;
    myFileEntity.File = hpf.InputStream.ToByteArray();
    myFileEntity.FileName = hpf.FileName;
}

Answer 3

Here is a post on how to Upload file with ASP.NET MVC

Answer 4

Check out my answer in this post.

Having troubles calling a controller post method

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