DevExpress中的LookUpEdit控件，选中一项后Text为空

Question

请问，LookUpEdit下拉有显示内容，选中一项后EditText也有值，但是Text为空，显示也是空，这是什么问题？谢谢


    /// <summary>
    /// 绑定跟进人数据Employee
    /// </summary>
    private void EmployeeBoundData(DevExpress.XtraEditors.LookUpEdit lookUpEdit)
    {
        DevExpress.XtraEditors.LookUpEdit le = lookUpEdit;
        BLL.Base_Employee bll = new BLL.Base_Employee();
        DataSet ds = bll.GetList(" Enabled='1'  ");
        DataTable dt = ds.Tables[0];
        if (dt != null)
        {
            le.EditValue = "EmployeeId";
            le.Properties.ValueMember = "EmployeeId";
            le.Properties.DisplayMember = "Employee";
            le.Properties.DataSource = dt;
            //自适应宽度
            le.Properties.BestFitMode = DevExpress.XtraEditors.Controls.BestFitMode.BestFitResizePopup;
            //填充列
            le.Properties.PopulateColumns();
            //设置列属性
            for (int i = 0; i < le.Properties.Columns.Count; i++)
            {
                le.Properties.Columns[i].Visible = false;
            }
            le.Properties.Columns[1].Visible = true;
            le.Properties.Columns[1].Caption = "编号";
            le.Properties.Columns[2].Visible = true;
            le.Properties.Columns[2].Caption = "名称";
          le.Properties.Columns[2].Width = 100;

        }
    }

Answer 1

同一窗口内，有其他几个LookUpEdit控件，是相同方法处理，但是正常的，不知道问题出在哪里，求指教