取得SqlDataSource某欄的資料
DataView dvSql = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);
DataRow drvSql = dvSql[0].Row;
lblCond.Text = "查詢年度：" + txtDATA_YEAR.Text + "，查詢分行：" + drvSql["BRNO"].ToString() + "，查詢日期：" + DateTime.Now.ToString("yyyy/MM/dd");