/// <summary>
        /// 增加一条记录,返回新的ID号。需要有一个单一主键,并且开启有标识符属性(异步方式)
        /// </summary>
        /// <param name="entity">实体模型</param>
        /// <returns></returns>
        public virtual async Task <int> InsertAsync(U_IntegralProductLogEntity entity)
        {
            if (entity.ID <= 0)
            {
                entity.ID = GetNewID();
            }
            Dictionary <string, object> dict = new Dictionary <string, object>();

            GetParameters(entity, dict);

            string strSQL = "insert into U_IntegralProductLog (" +
                            "ID," +
                            "ProductID," +
                            "UserID," +
                            "NeedS," +
                            "BuyTime," +
                            "BuyCounts," +
                            "BuyState) " +
                            "values(" +
                            "@ID," +
                            "@ProductID," +
                            "@UserID," +
                            "@NeedS," +
                            "@BuyTime," +
                            "@BuyCounts," +
                            "@BuyState)";

            if (await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)))
            {
                return(DataConverter.CLng(entity.ID));
            }
            return(-1);
        }
        /// <summary>
        /// 增加一条记录
        /// </summary>
        /// <param name="entity">实体模型</param>
        /// <returns></returns>
        public virtual bool Add(U_IntegralProductLogEntity entity)
        {
            if (entity.ID <= 0)
            {
                entity.ID = GetNewID();
            }
            Dictionary <string, object> dict = new Dictionary <string, object>();

            GetParameters(entity, dict);

            string strSQL = "insert into U_IntegralProductLog (" +
                            "ID," +
                            "ProductID," +
                            "UserID," +
                            "NeedS," +
                            "BuyTime," +
                            "BuyCounts," +
                            "BuyState) " +
                            "values(" +
                            "@ID," +
                            "@ProductID," +
                            "@UserID," +
                            "@NeedS," +
                            "@BuyTime," +
                            "@BuyCounts," +
                            "@BuyState)";

            return(_DB.ExeSQLResult(strSQL, dict));
        }
 /// <summary>
 /// 把实体类转换成键/值对集合
 /// </summary>
 /// <param name="entity"></param>
 /// <param name="dict"></param>
 private static void GetParameters(U_IntegralProductLogEntity entity, Dictionary <string, object> dict)
 {
     dict.Add("ID", entity.ID);
     dict.Add("ProductID", entity.ProductID);
     dict.Add("UserID", entity.UserID);
     dict.Add("NeedS", entity.NeedS);
     dict.Add("BuyTime", entity.BuyTime);
     dict.Add("BuyCounts", entity.BuyCounts);
     dict.Add("BuyState", entity.BuyState);
 }
        /// <summary>
        /// 通过数据读取器生成实体类
        /// </summary>
        /// <param name="rdr"></param>
        /// <returns></returns>
        private static U_IntegralProductLogEntity GetEntityFromrdr(NullableDataReader rdr)
        {
            U_IntegralProductLogEntity info = new U_IntegralProductLogEntity();

            info.ID        = rdr.GetInt32("ID");
            info.ProductID = rdr.GetString("ProductID");
            info.UserID    = rdr.GetString("UserID");
            info.NeedS     = rdr.GetString("NeedS");
            info.BuyTime   = rdr.GetNullableDateTime("BuyTime");
            info.BuyCounts = rdr.GetString("BuyCounts");
            info.BuyState  = rdr.GetBoolean("BuyState");
            return(info);
        }
        /// <summary>
        /// 获取实体(异步方式)
        /// </summary>
        /// <param name="strWhere">参数化查询条件(例如: and Name = @Name )</param>
        /// <param name="dict">参数的名/值集合</param>
        /// <returns></returns>
        public virtual async Task <U_IntegralProductLogEntity> GetEntityAsync(string strWhere, Dictionary <string, object> dict = null)
        {
            U_IntegralProductLogEntity obj = null;
            string strSQL = "select top 1 * from U_IntegralProductLog where 1=1 " + strWhere;

            using (NullableDataReader reader = await Task.Run(() => _DB.GetDataReader(strSQL, dict)))
            {
                if (reader.Read())
                {
                    obj = GetEntityFromrdr(reader);
                }
            }
            return(obj);
        }
        /// <summary>
        /// 更新一条记录(异步方式)
        /// </summary>
        /// <param name="entity">实体模型</param>
        /// <returns></returns>
        public virtual async Task <bool> UpdateAsync(U_IntegralProductLogEntity entity)
        {
            Dictionary <string, object> dict = new Dictionary <string, object>();

            GetParameters(entity, dict);
            string strSQL = "Update U_IntegralProductLog SET " +
                            "ProductID = @ProductID," +
                            "UserID = @UserID," +
                            "NeedS = @NeedS," +
                            "BuyTime = @BuyTime," +
                            "BuyCounts = @BuyCounts," +
                            "BuyState = @BuyState" +
                            " WHERE " +

                            "ID = @ID";

            return(await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)));
        }
 /// <summary>
 /// 增加或更新一条记录(异步方式)
 /// </summary>
 /// <param name="entity">实体模型</param>
 /// <param name="IsSave">是否增加</param>
 /// <returns></returns>
 public virtual async Task <bool> AddOrUpdateAsync(U_IntegralProductLogEntity entity, bool IsSave)
 {
     return(IsSave ? await AddAsync(entity) : await UpdateAsync(entity));
 }
 /// <summary>
 /// 增加或更新一条记录
 /// </summary>
 /// <param name="entity">实体模型</param>
 /// <param name="IsSave">是否增加</param>
 /// <returns></returns>
 public virtual bool AddOrUpdate(U_IntegralProductLogEntity entity, bool IsSave)
 {
     return(IsSave ? Add(entity) : Update(entity));
 }