//修改密码 private void button2_Click(object sender, EventArgs e) { //获取用户名 string username = maskedTextBox1.Text; if (username == "") { //MessageBox.Show("11"); FormControl.Changeform(4, this); } else { FormControl.person.id = username; FormControl.Changeform(4, this); } }
//登录 private void button1_Click(object sender, EventArgs e) { //判断密码是否正确 //获取用户名,查询密码 string username = maskedTextBox1.Text; string password = maskedTextBox2.Text; if (username == null || password == null) { MessageBox.Show("输入不完整"); } else { int power = mc.Loadding(username, password); if (power > 0) { //MessageBox.Show("登录成功"+power); FormControl.person.id = maskedTextBox1.Text; //切换视窗 switch (power) { case 1: //MessageBox.Show(power+"**"); //学生 DataSet data = mc.Selectin(maskedTextBox1.Text, "student"); FormControl.person.name = data.Tables[0].Rows[0][1].ToString(); FormControl.Changeform(1, this); break; case 2: //MessageBox.Show(power + "**"); //老师 DataSet data2 = mc.Selectin(maskedTextBox1.Text, "teacher"); FormControl.person.name = data2.Tables[0].Rows[0][1].ToString(); FormControl.Changeform(2, this); break; case 3: //MessageBox.Show(power + "**"); //管理员 FormControl.Changeform(3, this); break; } //Form1 fm1 = new Form1(); //this.Hide(); //fm1.ShowDialog(); //Application.ExitThread(); } else { if (power == -1) { MessageBox.Show("当前用户不存在"); maskedTextBox2.Text = null; maskedTextBox1.Text = null; } else { MessageBox.Show("密码错误"); maskedTextBox2.Text = null; } } } }