frmlogin.cs

利用vs2008+sql开发的酒店管理系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using HotelManageDBL;
using HotelManageMDL;

namespace HotelManager
{
    public partial class frmLogin : Form
    {
        LoginDB ldb = new LoginDB();
        Login l = new Login();
        public frmLogin()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 登录按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            if (txtName.Text == "")
            {
                MessageBox.Show("用户名不能为空！");
                return;
            }
            if (txtPwd.Text == "")
            {
                MessageBox.Show("密码不能为空！");
                return;
            }
            bool flag = ldb.SelectLogin(txtName.Text,txtPwd.Text);
            if (flag)
            {
                frmMain main = new frmMain();
                this.Hide();
                main.ShowDialog();
                this.Show();
               
            }
            else
            {
                MessageBox.Show("您输入的用户名或密码不正确，请重新输入！","友情提示",MessageBoxButtons.OK,MessageBoxIcon.None);
                return;
            }

            this.txtName.Text = "";
            this.txtPwd.Text = "";
        }

        private void button2_Click(object sender, EventArgs e)
        {

            DialogResult result = MessageBox.Show("是否真的要退出？", "友情提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (result == DialogResult.Yes)
            {
                this.Close();
            }
            
        }

        private void frmLogin_FormClosing(object sender, FormClosingEventArgs e)
        {
            //e.Cancel = MessageBox.Show("是否要退出？", "友情提出", MessageBoxButtons.YesNo, MessageBoxIcon.None) == DialogResult.Yes ? true : false;
        }
    }
}