Widget _buildTestVerticalCompanyCascader(BuildContext context) {
    return GestureDetector(
      onTap: () {
        TDCascader.showMultiCascader(context,
            title: '选择部门人员',
            data: _data_4,
            initialData: _initData,
            theme: 'step', onChange: (List<MultiCascaderListModel> selectData) {
              setState(() {
                List result = [];
                int len = selectData.length;
                _initData = selectData[len - 1].value!;
                selectData.forEach((element) {
                  result.add(element.label);
                });
                _selected_4 = result.join('/');
              });
            }, onClose: () {
              Navigator.of(context).pop();
            });
      },
      child: _buildSelectRow(context, _selected_4, '选择部门人员'),
    );
  }