我在我的项目中使用 Devexpress UploadControl for MVC。我正在使用弹出窗口来上传放置文件上传控件的文件。如果我多次单击按钮触发该弹出窗口,则上传控制文本显示为“未定义”。此问题仅在 Google Chrome 中发生
见截图

UploadControl 的代码使用如下:
<dl class="uploadProviderDoc">
            @Html.DevExpress().UploadControl(settings =>
               {
                   settings.Name = "Document";
                   settings.ClientSideEvents.TextChanged = "function(s,e){$('label[for=lblUploadMsg]').html(' ');}";
               }).GetHtml()
            @Html.Label("lblUploadMsg", " ")
        </dl>
我检查了 Google Chrome 的控制台,发现了引发该错误的代码行。
RedefineInputAttributes: function(textBoxCell, index, isNewElement) {
  textBoxCell.id = this.GetTextBoxCellID(index);
  if(this.IsSlUploadHelperEnabled()) {
   if(this.GetSlUploadHostElement())
    this.slUploadHelper.RedefineSlObjectAttributesInHostElement(index + 1, index, isNewElement);
   else
    this.slUploadHelper.RedefineSlObjectAttributes(textBoxCell, index, isNewElement);
  }
  else {
   var inputElement = _aspxGetChildByTagName(textBoxCell, "INPUT", 0);
   inputElement.id = textBoxCell.id + ASPxClientUploadControlIDSuffix.FileInput;
//Uncaught TypeError: Cannot set property 'id' of null (This exception is thrown here)
   inputElement.name = inputElement.id;
  }
  var fakeInputElement = _aspxGetChildByTagName(textBoxCell, "INPUT", this.IsSlUploadHelperEnabled() ? 0 : 1);
  if(fakeInputElement)
   fakeInputElement.id = textBoxCell.id + ASPxClientUploadControlIDSuffix.FileFakeInput;
 }