查看多个选择下拉菜单中的选定项目

Question

我希望从下拉列表中选择项目。我正在使用django表单来显示select2小部件。看起来像这样：

ToString();

HTML

rootcause = forms.MultipleChoiceField(choices=AuditedData.CHOICE_ROOTCAUSE,widget=Select2TagWidget( attrs={'data-placeholder': 'Search for root cause', 'data-width': '20em'}),label='')



  <script type="text/javascript">
   var selText;
   $('.django-select2').on('change', function() {
    selText ="";
    $(".django-select2:selected").each(function () {
     var $this = $(this);
     if(selText !=""){
      selText = selText.concat(",");
      selText = selText.concat($this.text());
     }
     else
        selText=$this.text();
    });
    document.getElementById("selected_values").value=selText;
   });
   </script>