public static string ReturnCarStatus(DataSet dataSet) { var detailTable = dataSet.Tables[0]; var car = new CarDetail(detailTable.Rows[0][0].ToString(), detailTable.Rows[0][1].ToString(), detailTable.Rows[0][2].ToString(), detailTable.Rows[0][3].ToString(), detailTable.Rows[0][4].ToString(), detailTable.Rows[0][5].ToString(), detailTable.Rows[0][6].ToString(), detailTable.Rows[0][7].ToString(), detailTable.Rows[0][8].ToString(), detailTable.Rows[0][9].ToString(), detailTable.Rows[0][10].ToString()); return(car.ToJson()); }