我想要的效果：

表结构如下：

城市或省id,     城市省名称     城市省拼音        parentID    

我的部分代码如下：

private void BindLB_City(string procinceID)
        {
            //绑定市
            if (!string.IsNullOrEmpty(procinceID))
            {
                string sql = string.Format("select * from 省市表 where parentId<>0 and parentId={0} ", procinceID);
                IList<Ct_provinceCity> citylist = Ct_provinceCityBll.GetCt_provinceCitiesBysqlstr(sql);
                if (citylist != null)
                {
                    lb_city.DataTextField = "省市名称";
                    lb_city.DataValueField = "省市id";

                    lb_city.DataSource = citylist;
                    lb_city.DataBind();
                }
            }
        }

 private void BindLB_Province()
        {
            //绑定省份
            string sql = "select * from 省市表 where parentId=0 order by ordernum,areaId";
            IList<Ct_provinceCity> province;
            if (Cache["province"] == null)
            {
                province = Ct_provinceCityBll.GetCt_provinceCitiesBysqlstr(sql);
                Cache["province"] = province;
            }
            else
            {
                province = (IList<Ct_provinceCity>)Cache["province"];
            }

            if (province.Count > 0)
            {
                lb_province.DataTextField = "省市名称";
                lb_province.DataValueField = "省市id";

                lb_province.DataSource = province;
                lb_province.DataBind();
            }
        }
我的运行结果如下：

问题：如何才能得到我想要的效果呢？就是说listbox如何绑定两项（拼音     名称）显示？