当前文件路径：ClothesShop/IDAL/Icart.cs

		            
 1using System;
 2using System.Collections.Generic;
 3using System.Text;
 4using System.Data;
 5using System.Data.OleDb;
 6//该源码下载自http://www.51aspx.com/CV/ClothesShop
 7namespace ClothesShop.IDAL
 8...{
 9    public interface Icart
10    ...{
11        /**//// <summary>
12        /// 添加到购物车
13        /// </summary>
14        /// <param name="product"></param>
15        /// <param name="count"></param>
16        /// <param name="checkout"></param>
17        /// <returns></returns>
18        int createcart(int productid,int userid,int count,bool checkout);
19
20        /**//// <summary>
21        /// 删除一件商品
22        /// </summary>
23        /// <param name="cartid"></param>
24        /// <returns></returns>
25        int deletecart(int cartid);
26
27        /**//// <summary>
28        /// 批量删除商品
29        /// </summary>
30        /// <param name="cartids"></param>
31        /// <returns></returns>
32        int deltecartlist(int [] cartids);
33
34        /**//// <summary>
35        /// 获得购物列表
36        /// </summary>
37        /// <returns></returns>
38        DataTable selectcartlist();
39
40        /**//// <summary>
41        /// 获得某个用户的购物列表
42        /// </summary>
43        /// <param name="userid"></param>
44        /// <returns></returns>
45        DataTable getcartlist(int userid);
46
47        /**//// <summary>
48        /// 修改购物列表的购买数量
49        /// </summary>
50        /// <param name="cartids"></param>
51        /// <param name="count"></param>
52        /// <returns></returns>
53        int updatecartlist(int [] cartids,int [] count);
54
55        /**//// <summary>
56        /// 商品是否存在购物车里
57        /// </summary>
58        /// <param name="productid"></param>
59        /// <returns></returns>
60        bool isexitproduct(int productid,int userid);
61
62        /**//// <summary>
63        /// 根据某一购物商品的数量
64        /// </summary>
65        /// <param name="cartid"></param>
66        /// <returns></returns>
67        int updatecart(int productid,int userid);
68        int updatecart(int productid, int userid, int count);
69
70        /**//// <summary>
71        /// 修改商品的购物状态
72        /// </summary>
73        /// <param name="cartid"></param>
74        /// <returns></returns>
75        int updatestate(int produtid,int userid, bool checkout);
76
77        /**//// <summary>
78        /// 购物成功后商品数量减一
79        /// </summary>
80        /// <param name="productid"></param>
81        void updateproduct(int productid,int num);
82
83                /**//// <summary>
84        /// 获得一条购物纪录
85        /// </summary>
86        /// <param name="productid"></param>
87        /// <returns></returns>
88        DataRow getonecartbyproductid(int productid);
89
90        /**//// <summary>
91        /// 根据商品ID和用户ID获得一条购物纪录的数量
92        /// </summary>
93        /// <param name="productid"></param>
94        /// <returns></returns>
95        int getcartnum(int cartid);
96    }
97}
98