DAL/ShoppingCart.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using DBUtility;
namespace DAL
{
	/// <summary>
    /// 数据访问类:ShoppingCart
	/// </summary>
    public partial class ShoppingCart
	{
		public ShoppingCart()
		{}
        #region  Method
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(long Id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from ShoppingCart");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
					new SqlParameter("@Id", SqlDbType.BigInt)
			};
            parameters[0].Value = Id;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }

        /// <summary>
        /// 是否存在该产品记录
        /// </summary>
        public bool ExistsPro(int Id,int memberid)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from ShoppingCart");
            strSql.Append(" where ispay=0 and ProductId=@Id and memberid=@memberid");
            SqlParameter[] parameters = {
					new SqlParameter("@Id", SqlDbType.Int,4),
                    new SqlParameter("@memberid", SqlDbType.Int,4)
			};
            parameters[0].Value = Id;
            parameters[1].Value = memberid;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }
        /// <summary>
        /// 是否存在该会员购买的产品记录（为提交提单）
        /// </summary>
        public bool ExistsMember(int Id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from ShoppingCart");
            strSql.Append(" where ispay=0 and MemberId=@Id");
            SqlParameter[] parameters = {
					new SqlParameter("@Id", SqlDbType.Int,4)
			};
            parameters[0].Value = Id;