DataRow[] dr = _deptCodeDt.Select(string.Format(" ward_code = '{0}'", LocalSetting.WardCode));                    if (dr.Length <= 0)                        return;                    DataTable tempT = new DataTable();                    tempT = dr[0].Table.Clone();        //克隆表结构                    DataSet tempDs = new DataSet();                    tempDs.Tables.Add(tempT);          //添加到辅助数据集中                    tempDs.Merge(dr);                  //利用数据集合并行集到表                    deptCmBox.DataSource = tempDs.Tables[0];                    deptCmBox.DisplayMember = "ward_name";                    deptCmBox.ValueMember = "ward_code";

备注：1._deptCodeDt 为从数据中中返回的DataTable

        2.deptCmBox 是一个下拉列表空间的name