File uploads with the MVC Framework

UPDATE: This post is out of date. It talks about an earlier version of the MVC Framework. Please check the ASP.NET MVC documentation for how to do file uploads.

There have been a couple of questions on the ASP.NET MVC newsgroup about this recently. It's pretty straight forward, you simply use the standard HTML input tag (type="file") in your form and then iterate through the HttpRequest's Files collection in your controller.

Here's the view's HTML:

<form action="/Document.mvc/UpdateDocument/" method="post" enctype="multipart/form-data">
   <label for="file1">Document 1</label>
   <input type="file" id="file1" name="file1" />

   <label for="file2">Document 2</label>
   <input type="file" id="file2" name="file2" />

   <label for="file3">Document 3</label>
   <input type="file" id="file3" name="file3" />
</form>

And here's the controller action:

public void SaveDocuments()
{
   foreach (string inputTagName in Request.Files)
   {
       HttpPostedFile file = Request.Files[inputTagName];
       if (file.ContentLength > 0)
       {
           string filePath = Path.Combine(@"C:\MyUploadedFiles", Path.GetFileName(file.FileName));
           file.SaveAs(filePath);
       }
   }
}