title: HttpContext.Current.Request.Files is always empty
body: <p>I see lots of examples of WebAPIs accepting files.  However, I have yet to find a solution as to why, no matter what I've tried, to get my HttpContext.Current.Request.Files to ever have a file in it that I am posting to the Web API through Postman.  (I have also posted that image through a Console Application and got the same result)</p>
  
  <pre><code>[HttpPost]
  [ActionName("Post")]
  [ResponseType(typeof(PeliquinApiRsp))]
      public IHttpActionResult Post(int personId)
      {
          var empPicture = PeliquinIOC.Resolve&lt;IEmpPictureBL&gt;(UserId, UserName, PropertyCode);
  
          if (!(IsAllowed(SysPrivConstants.SYSPRIV__TYPE_PERSONNEL, SysPrivConstants.SYSPRIV__FUNC_PERSONNEL_CARDHOLDER, SysPrivConstants.SYSPRIV__LEVEL_FULL)))
              return (Unauthorized());
  
          var apiRsp = new PeliquinApiRsp();
  
          var httpRequest = HttpContext.Current.Request;
  
          if (httpRequest.Files.Count == 0)
          return BadRequest();
  
          empPicture.Post(httpRequest.Files[0].InputStream, personId);
  
          apiRsp.SetStatus();
          apiRsp.SetData("EmpPicture");
  
          return (Ok(apiRsp));
      }
  </code></pre>
  
  <p>It is a very simple method.  I've been using Postman to post a Binary .jpg file.  I have set the content-type = "multipart/form-data".  No error is throw in my code, other than the .Files = 0.</p>
  
  <p>I have some additional settings in my WebApiConfig for the rest of the API, but I'll include them just in case, along with the route for this particular method:</p>
  
  <pre><code>config.Formatters.Remove( config.Formatters.XmlFormatter );
  config.Formatters.JsonFormatter.SupportedMediaTypes.Add( new MediaTypeHeaderValue( "application/json" ) );
  config.Formatters.FormUrlEncodedFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("multipart/form-data"));
  
  
  config.Routes.MapHttpRoute(
              name: "EmpPicturePost",
              routeTemplate: "api/EmpPicture/{personId}",
              defaults: new { controller = "EmpPicture", action = "Post" },                
              constraints: new { personId = @"^\d+$", httpMethod = new HttpMethodConstraint(HttpMethod.Post, HttpMethod.Options) }
          );
  </code></pre>
  
  <p>I am at wit's end trying to figure out why something so simple, just doesn't work.  I've tried quite a few other way of doing this, that were all more MVC-like, but this isn't an MVC app, and they threw different errors.  Thanks for any help.</p>