BookShop/DAL/BookShop_ShoppingCart.cs

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

using BookShop.Model;
using CTL.Common;
using CTL.Data;

namespace BookShop.Data
{
    /// <summary>
    ///	购物车信息表
    ///	数据层实例化接口类 BookShop_ShoppingCart
    /// 主要完成对数据库的基本操作
    ///	2013-08-08 21:37:56
    /// </summary>
    public partial class ShoppingCartItemInfoProvider : SqlDB<ShoppingCartItemInfoProvider>
    {
        /// <summary>
        /// 数据库表名
        /// </summary>
        private static string tableName = "BookShop_ShoppingCart";
        /// <summary>
        /// 数据库视图名
        /// </summary>
        private static string viewName = "BookShop_View_ShoppingCart";
        /// <summary>
        /// 数据查询语句(查询全部数据)
        /// </summary>
        private string select_strsql = "Select * from " + viewName;


        /// <summary>
        /// 数据插入语句
        /// </summary>
        private string insert_strsql = "Insert into " + tableName + " (UserID,BookID,Price,Quantity)values(@UserID,@BookID,@Price,@Quantity)";
        /// <summary>
        /// 数据插入语句
        /// </summary>
        private string count_strsql = "Select Count(*) From " + viewName;
        /// <summary>
        /// 数据更新语句
        /// </summary>
        private string update_strsql = "Update  " + tableName + " Set UserID= @UserID ,BookID= @BookID ,Price= @Price ,Quantity= @Quantity   where ShoppingCartID=@ShoppingCartID  ";
        /// <summary>
        /// 数据删除语句(根据主键删除)
        /// </summary>
        private string delete_strsql = "Delete  From " + tableName + "  where ShoppingCartID=@ShoppingCartID";


        #region  判断是否存在
        /// <summary>
        /// 根据条件判断是否存在
        /// </summary>
        /// <param name="condition">条件</param>
        /// <returns></returns>
        public bool ExistShoppingCart(string condition)