title: Append the files from dropzone to custom form data object
body: <p>I'm using dropzone to get the nice drag n' drop feeling for files in my application.</p>
  
  <p>Now I want to get the files that you have dragged and dropped, and append it to my own formdata-object (FormData).</p>
  
  <p>I'm getting the files from dropzone like this:</p>
  
  <pre><code>var files = $('#my-dropzone').get(0).dropzone.getAcceptedFiles();
  </code></pre>
  
  <p>And I'm then trying to append to the formdata-object like this:</p>
  
  <pre><code>    var formData = new FormData();
      formData.append('tags', JSON.stringify(objectToServer));
      formData.append('files', files);
  </code></pre>
  
  <p>In the backend, I retrieve the post data like this:</p>
  
  <pre><code>        var tags = Request.Form.Get(keys[0]);
          var files = Request.Form.Get(keys[1]);
  </code></pre>
  
  <p>When I inspect the files variable, it look like this: <code>[object File],[object File]</code></p>
  
  <p>I have also tried to use Request.Files:</p>
  
  <pre><code>var file = this.Request.Files; //just empty
  </code></pre>
  
  <p>So, how can I add the relevant data for the files, to my formData-object, so my backend can treat it like files? </p>