Jons blog

I have used asp.net mvc since beta and uploaded files without any problems until yesterday.

I kept getting null from Request.Files (Actually I use HttpPostedFile as inparameter to the action). Nevertheless both Request.Files and the inparamer was null.

In the form:

<% using (Html.BeginForm("UploadFile", "Product", FormMethod.Post, 
                                    new {enctype = "multipart/form-data"})) {%> 

    
File
    

        
    
    

<%} %>

In the controller:

[HttpPost]
public ActionResult UploadFile(HttpPostedFileBase file)
{
	if (file != null && file.ContentLength > 0)
	{
		var fileName = Path.GetFileName(file.FileName);
		var path = Path.Combine(Server.MapPath("~/App_Data/upload"), fileName);
		file.SaveAs(path); 
	}
	return RedirectToAction("Edit", "Product");
}

Can you spot the error? Well it took me quite some time to figure it out:
The <input type="file" id="file" /> needs to hade a name. Changing it to <input type="file" id="file" name=file" /> solves the problem.