IDAL/Icart.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.OleDb;

namespace ClothesShop.IDAL
{
    public interface Icart
    {
        /// <summary>
        /// 添加到购物车
        /// </summary>
        /// <param name="product"></param>
        /// <param name="count"></param>
        /// <param name="checkout"></param>
        /// <returns></returns>
        int createcart(int productid,int userid,int count,bool checkout);

        /// <summary>
        /// 删除一件商品
        /// </summary>
        /// <param name="cartid"></param>
        /// <returns></returns>
        int deletecart(int cartid);

        /// <summary>
        /// 批量删除商品
        /// </summary>
        /// <param name="cartids"></param>
        /// <returns></returns>
        int deltecartlist(int [] cartids);

        /// <summary>
        /// 获得购物列表
        /// </summary>
        /// <returns></returns>
        DataTable selectcartlist();

        /// <summary>
        /// 获得某个用户的购物列表
        /// </summary>
        /// <param name="userid"></param>
        /// <returns></returns>
        DataTable getcartlist(int userid);

        /// <summary>
        /// 修改购物列表的购买数量
        /// </summary>
        /// <param name="cartids"></param>
        /// <param name="count"></param>
        /// <returns></returns>
        int updatecartlist(int [] cartids,int [] count);

        /// <summary>
        /// 商品是否存在购物车里
        /// </summary>
        /// <param name="productid"></param>
        /// <returns></returns>
        bool isexitproduct(int productid,int userid);