/// <summary>
        /// 根据条件获取实体集合
        /// </summary>
        /// <param name="pc">pc</param>
        /// <param name="obc">obc</param>
        /// <returns>实体</returns>
        public List <ProductAttributesValueModel> RetrieveMultiple(ParameterCollection pc, OrderByCollection obc)
        {
            List <ProductAttributesValueModel> productattributesvalues = new List <ProductAttributesValueModel>();

            ProductAttributesValueModel productattributesvalue = new ProductAttributesValueModel();
            DataTable dt = DbUtil.Current.RetrieveMultiple(productattributesvalue, pc, obc);

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                productattributesvalue = new ProductAttributesValueModel();
                productattributesvalue.ConvertFrom(dt, i);
                productattributesvalues.Add(productattributesvalue);
            }

            return(productattributesvalues);
        }
        /// <summary>
        /// 根据主键获取实体
        /// </summary>
        /// <param name="valueid"></param>
        /// <returns>实体</returns>
        public ProductAttributesValueModel Retrieve(string valueid)
        {
            ProductAttributesValueModel productattributesvalue = new ProductAttributesValueModel();

            productattributesvalue.ValueId = valueid;

            DataTable dt = DbUtil.Current.Retrieve(productattributesvalue);

            if (dt.Rows.Count < 1)
            {
                return(null);
            }

            productattributesvalue.ConvertFrom(dt);

            return(productattributesvalue);
        }