DAL/Wx_GoodsService.cs

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using System;
using System.Text;
using System.Data.SqlClient;
using System.Data;

namespace DAL
{
    /// <summary>
    /// 数据访问类:Wx_Goods
    /// </summary>
    public partial class Wx_GoodsService
    {
        public Wx_GoodsService()
        { }
        #region  BasicMethod
        /// <summary>
        /// 设置更新库存
        /// </summary>
        /// <param name="id"></param>
        /// <param name="note"></param>
        /// <returns></returns>
        public static int UpdateStore(int id,int note) 
        {
            string sql = "update Wx_Goods set note = " + note + " where id = " + id;
            return DBHelperSQL.ExecuteSql(sql);
        }
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Wx_Goods");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            return DBHelperSQL.Exists(strSql.ToString(), parameters);
        }
        /// <summary>
        /// 得到最大ID
        /// </summary>
        public static int GetMaxId()
        {
            return DBHelperSQL.GetMaxID("id", "Wx_Goods");
        }
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public static int Add(Model.Wx_Goods model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into Wx_Goods(");
            strSql.Append("Goods,Spec,Img,Price,Sort,delflag,note)");
            strSql.Append(" values (");
            strSql.Append("@Goods,@Spec,@Img,@Price,@Sort,0,1)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {