LoginUI/Form1.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using LoginBLL;
using LoginModel;

namespace LoginUI
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        // 下载于www.51aspx.com
        private void btnLogin_Click(object sender, EventArgs e)
        {
            try
            {
                string userName = txtUserName.Text.Trim();   //取出用户界面的数据 
                string password = txtPassword.Text;
                LoginBLL.LoginManager mgr = new LoginBLL.LoginManager();
                LoginModel.UserInfo user = mgr.UserLogin(userName, password);   //使用用户界面数据,进行查找               
                //如果没有问题，则登录成功               
                MessageBox.Show("登录用户：" + user.UserName);
            }
            catch (Exception ex)
            //如果登录有异常 则登录失败            
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();

        }
    }
}