C#专题二：教务管理系统中的另个一个登陆方式（另附资源链接）

转载清楚明出处：http://blog.csdn.net/feng1790291543

比以前那个略有改动，增加了单选按钮的验证，比较完善~~~教务管理系统~分享分享！！！

using System;
using System.Windows.Forms;
using WindowsFormsApplication18;
using 教务管理系统;
namespace 教务管理系统
{
    public partial class MainLogin : Form
    {
        /*-----------------------------------------------------数据库类的定义---------------------------------------------*/

        TeaDataBase teavar = new TeaDataBase();

        /*-------------------------------------------------------主界面------------------------------------------------*/

        public MainLogin()
        {
            InitializeComponent();
            this.skinEngine1.SkinFile = "Wave.ssk";
            
        }

        /*----------------------------------------------------初始化-----------------------------------------------------*/

        private void MainLogin_Load(object sender, EventArgs e)
        {
            teavar.sqlConnection("localhost", "EAMS", "sa", "server2005");
            textBox1.Focus();
            radioButton2.Checked = true;
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            AcceptButton = button1;
        }

        /*-----------------------------------------------------登陆验证-------------------------------------------------*/

        private void button1_Click(object sender, EventArgs e)
        {

            bool flag = teavar.checkLogin(textBox1.Text, textBox2.Text);

            try
            {
                if (flag&&radioButton1.Checked)
                {
                    
                }
                else if (flag && radioButton2.Checked)
                {
                    Teacher teach = new Teacher();
                    teach.Show();
                    this.Hide();
                }
                else if (flag && radioButton3.Checked)
                {
                    Student stu = new Student();
                    stu.Show();
                    this.Hide();
                }
                else
                {
                    MessageBox.Show("用户名或密码错误!");
                }
            }
            catch (FormatException ex)
            {
                MessageBox.Show(ex.Message);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("确定要退出吗？", "提示", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                Application.Exit();
            }
        }

    }
}

有问题或者错误，还望大家给予指正！！！谢谢~

全部资源链接：http://download.csdn.net/download/feng1790291543/6805907