CreateSQLSentence/ProductSentence.cs

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using System;
using System.Collections.Generic;
using System.Text;
using IDAL;
using Model;
using System.Data;
using DAL;

namespace CreateSQLSentence
{
    public class ProductSentence : I_ProductsManage
    {
        SQLAccess sqlManager = new SQLAccess();
        #region I_ProductsManage 成员
        /// <summary>
        /// 产品添加
        /// </summary>
        /// <param name="newProduct">新产品对象信息</param>
        /// <returns>是否添加成功</returns>
        public int ProductAdd(Model.Product newProduct)
        {
            StringBuilder sql_sentence = new StringBuilder();
            sql_sentence.AppendFormat("insert into Tab_Products(ProductName,ProductUnitPrice,ProductCount,ProductContent,ProductImg,ProductClassID) values('{0}','{1}','{2}','{3}','{4}','{5}')", newProduct.ProductName1, newProduct.ProductUnitPrice1, newProduct.ProductCount1, newProduct.ProductContent1,newProduct.ProductImg1, newProduct.ProductClassID1);
            return sqlManager.ExecuteNonQuery(sql_sentence.ToString());
        }
        /// <summary>
        /// 产品删除
        /// </summary>
        /// <param name="De_ProductID">产品ID号</param>
        /// <returns>是否删除成功</returns>
        public int ProductDelete(int De_ProductID)
        {
            throw new Exception("The method or operation is not implemented.");
        }
        /// <summary>
        /// 产品查询
        /// </summary>
        /// <param name="where">查询条件</param>
        /// <returns>数据表类型信息</returns>
        public System.Data.DataSet ProductSelect(string sql_sentence_where)
        {
            StringBuilder sql_sentence = new StringBuilder();
            sql_sentence.Append("select * from Tab_Products ");
            if (sql_sentence_where.Length > 0)
                sql_sentence.AppendFormat(" where {0}", sql_sentence_where);
            return sqlManager.ExecuteDataSet(sql_sentence.ToString());
        }

        /// <summary>
        /// 查询新品
        /// </summary>
        /// <returns>ds类型数据集</returns>
        public DataSet ProductSelect()
        {
            StringBuilder sql_sentence = new StringBuilder();
            sql_sentence.Append("select top 8 * from Tab_Products order by PrductDate desc");
            return sqlManager.ExecuteDataSet(sql_sentence.ToString());
        }

        /// <summary>