login.cs

一个简单的考生答题系统

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

namespace Myschool
{
    public partial class Login : Form
    {
        public static string name = "";//用户名
        public Login()
        {
            InitializeComponent();
        }

        private void Login_Load(object sender, EventArgs e)
        {
            this.comtype.SelectedIndex = 0;//设置默认选中第一个
            this.radblue.Checked = true;
            skinEngine.SkinFile = "DiamondBlue.ssk";
        }

        private void btngiveup_Click(object sender, EventArgs e)
        {
          Application.Exit();//退出程序事件
        }

        private void btnlogin_Click(object sender, EventArgs e)
        {

            LoginPanduan();
          
        }
        //判断登录的方法
        private void LoginPanduan()
        {
            //获得前台数据
             name = txtname.Text;
            string pwd = txtpwd.Text;
            if ("" == name)
            {
                MessageBox.Show("请输入用户名！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.txtname.Focus();
                return;
            } if ("" == pwd)
            {
                MessageBox.Show("请输入密码!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.txtpwd.Focus();
                return;
            }
            bool b = Ado.select(name, pwd);
            if (b)
            {
                new MainForm().Show();
                this.Visible = false;
            }
            else
            {
                MessageBox.Show("用户名或密码错误！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.txtname.Focus();
            }
        }

        private void radblue_Click(object sender, EventArgs e)
        {
            skinEngine.SkinFile = "DiamondBlue.ssk";
        }

      

        private void radgreen_Click(object sender, EventArgs e)
        {
            skinEngine.SkinFile = "DiamondGreen.ssk";
        }

        private void btnlogin_KeyDown(object sender, KeyEventArgs e)
        {
           
                LoginPanduan();

        }

      
      

       

       
    }
}