BLL(业务逻辑层)

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
/// <summary>
///MemberManage 的摘要说明
/// </summary>
public class MemberManage
{
    private DataSet ds = null;
 public MemberManage()
 {
  //
  //TODO: 在此处添加构造函数逻辑
  //
 }

    public static bool Login(string username,string password,out Member merber)
    {//判断用户名密码是否正确
        Member mb = UserServer.GetuserByUserName(username);
        if (mb == null)
        {
            merber = null;
            return false;
        }
        if (mb.Password == password)
        {
            merber = mb;
            return true;
        }
        else
        {
            merber = null;
            return false;
        }
    }

}