DataSet 转 List

 public class OrderInfo
    {
        public OrderResult GetOrderInfoByOrderNum(List<string> orderNumList)
        {
            OrderResult result = new OrderResult();
            OmcOrderSearchClient orderSearch = new OmcOrderSearchClient();
            ArrayList arrayList = new ArrayList();
            arrayList.AddRange(orderNumList);
            var orderInfo = orderSearch.GetOrderInfoCoMainDetailsTable(arrayList);
            if (!orderInfo.State)
            {
                result.IsSuc = false;
                result.Msg = orderInfo.VMsg;
                return result;
            }
            var order = DataSetToIList<Fct_Order>((DataSet)orderInfo.ResultObj, "Order");
            var commodity = DataSetToIList<Fct_Commodity>((DataSet)orderInfo.ResultObj, "Commodity");
            var orderPayment = DataSetToIList<Fct_OrderPayment>((DataSet)orderInfo.ResultObj, "OrderPayment");
            result.IsSuc = true;
            result.Msg = "OK";
            result.OrderList = order;
            result.CommodityList = commodity;
            result.OrderPaymentList = orderPayment;
            return result;
        }
        /// <summary> 
        /// DataSet装换为泛型集合 
        /// </summary> 
        /// <typeparam name="T"></typeparam> 
        /// <param name="p_DataSet">DataSet</param> 
        /// <param name="p_TableIndex">待转换数据表索引</param> 
        /// <returns></returns> 
        /// 2008-08-01 22:46 HPDV2806 
        public static IList<T> DataSetToIList<T>(DataSet p_DataSet, int p_TableIndex)
        {
            if (p_DataSet == null || p_DataSet.Tables.Count < 0)
                return null;
            if (p_TableIndex > p_DataSet.Tables.Count - 1)
                return null;
            if (p_TableIndex < 0)
                p_TableIndex = 0;

            DataTable p_Data = p_DataSet.Tables[p_TableIndex];
            // 返回值初始化 
            IList<T> result = new List<T>();
            for (int j = 0; j < p_Data.Rows.Count; j++)
            {
                T _t = (T)Activator.CreateInstance(typeof(T));
                PropertyInfo[] propertys = _t.GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    for (int i = 0; i < p_Data.Columns.Count; i++)
                    {
                        // 属性与字段名称一致的进行赋值 
                        if (pi.Name.Equals(p_Data.Columns[i].ColumnName))
                        {
                            // 数据库NULL值单独处理 
                            if (p_Data.Rows[j][i] != DBNull.Value)
                                pi.SetValue(_t, p_Data.Rows[j][i], null);
                            else
                                pi.SetValue(_t, null, null);
                            break;
                        }
                    }
                }
                result.Add(_t);
            }
            return result;
        }

        /// <summary> 
        /// DataSet装换为泛型集合 
        /// </summary> 
        /// <typeparam name="T"></typeparam> 
        /// <param name="p_DataSet">DataSet</param> 
        /// <param name="p_TableName">待转换数据表名称</param> 
        /// <returns></returns> 
        /// 2008-08-01 22:47 HPDV2806 
        public static IList<T> DataSetToIList<T>(DataSet p_DataSet, string p_TableName)
        {
            int _TableIndex = 0;
            if (p_DataSet == null || p_DataSet.Tables.Count < 0)
                return null;
            if (string.IsNullOrEmpty(p_TableName))
                return null;
            for (int i = 0; i < p_DataSet.Tables.Count; i++)
            {
                // 获取Table名称在Tables集合中的索引值 
                if (p_DataSet.Tables[i].TableName.Equals(p_TableName))
                {
                    _TableIndex = i;
                    break;
                }
            }
            return DataSetToIList<T>(p_DataSet, _TableIndex);
        }

        /// <summary>
        /// 订单表
        /// </summary>
        public class Fct_Order
        {
            /// <summary>
            /// 订单金额
            /// </summary>
            public decimal TotalPrice { get; set; }

            /// <summary>
            /// 订单流水号
            /// </summary>

            public int SerialNumber { get; set; }

            /// <summary>
            /// 如果是充值订单,是否已充值
            /// </summary>
            public int IsGetMoney { get; set; }

            /// <summary>
            /// 用户名
            /// </summary>
            public string UserName { get; set; }

        }
        /// <summary>
        /// 商品表
        /// </summary>
        public class Fct_Commodity
        {
            /// <summary>
            /// 商品id
            /// </summary>
            public Guid CommodityId { get; set; }

            /// <summary>
            /// 数量
            /// </summary>
            public decimal Amount { get; set; }
        }
        public class OrderResult
        {
            /// <summary>
            /// 返回结果是否成功，true:成功，false：失败
            /// </summary>
            public bool IsSuc { get; set; }

            /// <summary>
            /// 返回消息
            /// </summary>
            public string Msg { get; set; }

            /// <summary>
            /// 订单信息
            /// </summary>
            public IList<Fct_Order> OrderList { get; set; }

            /// <summary>
            /// 商品信息
            /// </summary>
            public IList<Fct_Commodity> CommodityList { get; set; }

            /// <summary>
            /// 订单支付
            /// </summary>
            public IList<Fct_OrderPayment> OrderPaymentList { get; set; }
        }
        /// <summary>
        /// 订单付款表
        /// </summary>
        public class Fct_OrderPayment
        {
            /// <summary>
            /// 折扣金额
            /// </summary>
            public decimal PaymentPrice { get; set; }
        }
    }