Pulsante in DROPZONE

[max1974]

mi necessita che il pulsante "start" che sta nell'anteprima del file (preview-template) mi dia il nome del file.

<div id="file-upload">
    <div class="panel panel-light">
        <div class="panel-heading">
            <div class="panel-title">
                <h4>Importa Dati Wbs</h4>
            </div>
        </div>
        <div class="panel-body">
            <section>
              <div id="dropzone">
                <form class="dropzone needsclick" id="demo-upload" action="/upload">
                  <div class="dz-message needsclick">
                      Trascina file qui o click per upload.<br>
                      <span class="note needsclick fa fa-download fa-4x" style="color:blue"></span>
                  </div>
                </form>
              </div>
            </section>
          <hr size="3" noshade color="#F00000">
          <div id="preview-template" style="display: none;">
            <div class="dz-preview dz-file-preview">
              <div class="dz-image"><img data-dz-thumbnail=""></div>
              <div class="dz-details">
                <div class="dz-size"><span data-dz-size=""></span></div>
                <div class="dz-filename"><span data-dz-name=""></span></div>
              </div>
              <div class="dz-progress"><span class="dz-upload" data-dz-uploadprogress=""></span></div>
              <div class="dz-error-message"><span data-dz-errormessage=""></span></div>
              <div class="dz-success-mark"></div>
              <div class="dz-error-mark"></div>
              <button class="btn btn-primary start">Start</button>
            </div>
          </div>
          <a type='button' class='btn btn-success btn-lg dz-view addData' title='Visualizza Dati'>Visualizza File</a>
        </div>
    </div>
</div>
<!-- Modal Form -->
<div id="add_data_import_wbs" class="modal fade bd-example-modal-lg" style="font-size:10px;">
      <div class="modal-dialog center">
           <div class="modal-content">
                <div class="modal-header">
                     <h4 class="modal-title">Dati che verranno Importati</h4>
                     <button type="button" class="close" data-dismiss="modal">&times;</button>
                </div>
                <div class="modal-body" style="width:100%">
                   <form method="post" id="insert_form" name="insert_form" class="needs-validation" novalidate>
                         <div id="result" style="width:100%"></div>
                         <div class="modal-footer">
                           <button type='submit' name='insert' id='insert' value="Insert" class='btn btn-labeled btn-success' title='Importa Dati'><span class='btn-label'><span class='fa fa-refresh'></span></span>Importa Dati</button>
                           <button type="button" class="btn btn-dark" data-dismiss="modal"><i class="fa fa-sign-out"></i> Esci</button>
                        </div>
                  </form>
                </div>
          </div>
    </div>
</div>
    <script type="text/javascript">
        LobiAdmin.loadScript('js/plugin/dropzone/dropzone.min.js', initPage);
        function initPage(){
          $(".addData").click(function(){
          alert("AddData");
          });
          /*-----IMPORTA DATI-----*/
          $("#insert").click(function(){
             $('#add_data_Modal').modal('hide');
             sendTblDataToServer();
          });


          $(".start").click(function() {
            alert("start");
          });
             var dropzone = new Dropzone('#demo-upload', {
               previewTemplate: document.querySelector('#preview-template').innerHTML,
               parallelUploads: 2,
               autoProcessQueue: false,
               thumbnailHeight: 120,
               thumbnailWidth: 120,
               maxFilesize: 3,
               validation: {
                    allowedExtensions: [".xls", ".html", ".xlsx"]
               },
               showFileList: false,
               addRemoveLinks: true,
               filesizeBase: 1000,
               dictRemoveFile:"Rimuovi File",
               thumbnail: function(file, dataUrl) {
                   if (file.previewElement) {
                       file.previewElement.classList.remove("dz-file-preview");
                       var images = file.previewElement.querySelectorAll("[data-dz-thumbnail]");
                       for (var i = 0; i < images.length; i++) {
                         var thumbnailElement = images[i];
                         thumbnailElement.alt = file.name;
                         thumbnailElement.src = dataUrl;
                       }
                       setTimeout(function() { file.previewElement.classList.add("dz-image-preview"); }, 1);
                     }
                   },
             });
        }
    </script>
</div>