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Uploading files using ASP.NET MVC 2

In ASP.NET MVC 1 you had to check the Request.Files property when you want to upload one or more files from your web application.

   1:  public class HomeController : Controller
   2:  {
   3:    public ActionResult ProcessFiles()
   4:    {
   5:      foreach (string file in Request.Files)
   6:      {
   7:            //Process files
   8:      }
   9:      return View();
  10:    }
  11:  }

As this is not directly helping to make a testable controller action, they were some initiatives to make this testable.

In ASP.NET MVC 2 you get by default a ModelBinder that extracts the files from the Request and assign it to a parameter of your controller action method.

   1:  public class HomeController : Controller
   2:  {
   3:    public ActionResult ProcessFiles(IEnumerable<HttpPostedFileBase> files)
   4:    {
   5:      foreach (var file in files)
   6:      {
   7:        //Process files
   8:      }
   9:      return View();
  10:    }
  11:  }

Beautiful isn’t it?

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