取消文件上传后，显示名称？

Question

如果单击取消按钮，我想删除文件名。 我的代码是：

<div layout="row" class="noPadding">
      <p class="md-body-1 bold underline">Download CSV</p>
      <md-button class="md-raised" ng-click="showBulkEntries()">
        <label for="file-upload-input-{{themeObj.name}}" style="color:green">Browse</label> 
      </md-button>
      <input type = "file" id="file-upload-input-{{themeObj.name}}" file-model = "mcqEditCtrl.fileUploadObj['{{themeObj.name}}'].csvUploadFile" ng-hide="inputHide=true" ngf-pattern="'*.csv'" accept="application/csv" multiple/>
      <label class="md-body-1">{{mcqEditCtrl.fileUploadObj[themeObj.name].csvUploadFile.name}}</label>
      <md-button flex-offset="5" class="md-hue-3 md-raised" ng-click="mcqEditCtrl.uploadFile(themeObj)">Preview/Upload</md-button>


    </div>