class3ceng.cs

采用多层开发模式,接口.静太工厂,sadfdsafsd

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using LiuJinfuTest.SQLServerDAL;

namespace LiuJinfuTest.BLL
{
    /// <summary>
    /// 演示显示层+业务层+数据层调用关系
    /// </summary>
    public class Class3Ceng
    {
        //3层结构，把数据库中的相关表返回到前台DataSet

        public DataSet Classes()
        {
            //return Classes
            return LiuJinfuTest.SQLServerDAL.Classes.getClasses();
        }
    }
}