title: On successmultiple function in Dropzone.js
body: <p>I'm trying to alert the user when their files have been successfully uploaded but am stuck on getting it to work after the init function.</p>
  
  <p>Here is my script:</p>
  
  <pre><code>&lt;script&gt;
      Dropzone.options.myDropzone = {
          paramName: 'file',
          maxFilesize: 10, // MB
          maxFiles: 20,
          acceptedFiles: ".jpeg,.jpg,.png,.gif,.pdf,.doc,.docx,.xlsx,.xls",
      };
  
       this.on("successmultiple", function (file) {
            alert("All files have uploaded ");
        });
  &lt;/script&gt;
  </code></pre>
  
  <p>The upload does work so I am assuming it is how I am calling the successmultiple portion. </p>