private void btnLogin_Click(object sender, EventArgs e) { if (radioButton1.Checked == false && radioButton2.Checked == false && radioButton3.Checked == false) MessageBox.Show("请选择登陆身份!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); if (txtName.Text == "" || txtPwd.Text == "") MessageBox.Show("用户名或密码不能为空!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); if(radioButton1.Checked==true) { if(txtName.Text=="Super"&&txtPwd.Text=="123456") { frmMain fmain = new frmMain();//管理员窗口 this.Hide(); fmain.ShowDialog(); this.Close(); } else { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } } else if(radioButton2.Checked==true) { IDinfo = txtName.Text; sql = "select lst_LoginSName from Liust_StuLogin where lst_LoginSName='"+IDinfo+"'"; int Decide = con.OpreateData(sql); if (Decide == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { IDpas = txtPwd.Text; sql = "select * from Liust_StuLogin where lst_LoginSName='" + IDinfo + "' and lst_LoginSPas='******'"; int AgainP = con.OpreateData(sql); if (AgainP == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { GetLogin.GuestLogin = IDinfo; frmMainStu fmainStu = new frmMainStu();//学生窗口 this.Hide(); fmainStu.ShowDialog(); this.Close(); } } } else if(radioButton3.Checked==true) { IDinfo = txtName.Text; sql = "select lst_LoginTName from Liust_TeaLogin where lst_LoginTName='" + IDinfo + "'"; int Decide = con.OpreateData(sql); if (Decide == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { IDpas = txtPwd.Text; sql = "select * from Liust_TeaLogin where lst_LoginTName='" + IDinfo + "' and lst_LoginTPas='******'"; int AgainP = con.OpreateData(sql); if (AgainP == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { GetLogin.GuestLogin = IDinfo; frmMainTea fmainTea = new frmMainTea();//教师窗口 this.Hide(); fmainTea.ShowDialog(); this.Close(); } } } }
private void btnLogin_Click(object sender, EventArgs e) { if (radioButton1.Checked == false && radioButton2.Checked == false && radioButton3.Checked == false) { MessageBox.Show("请选择登陆身份!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } if (txtName.Text == "" || txtPwd.Text == "") { MessageBox.Show("用户名或密码不能为空!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); } if (radioButton1.Checked == true) { if (txtName.Text == "Super" && txtPwd.Text == "123456") { frmMain fmain = new frmMain();//管理员窗口 this.Hide(); fmain.ShowDialog(); this.Close(); } else { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } } else if (radioButton2.Checked == true) { IDinfo = txtName.Text; sql = "select lst_LoginSName from Liust_StuLogin where lst_LoginSName='" + IDinfo + "'"; int Decide = con.OpreateData(sql); if (Decide == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { IDpas = txtPwd.Text; sql = "select * from Liust_StuLogin where lst_LoginSName='" + IDinfo + "' and lst_LoginSPas='******'"; int AgainP = con.OpreateData(sql); if (AgainP == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { GetLogin.GuestLogin = IDinfo; frmMainStu fmainStu = new frmMainStu();//学生窗口 this.Hide(); fmainStu.ShowDialog(); this.Close(); } } } else if (radioButton3.Checked == true) { IDinfo = txtName.Text; sql = "select lst_LoginTName from Liust_TeaLogin where lst_LoginTName='" + IDinfo + "'"; int Decide = con.OpreateData(sql); if (Decide == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { IDpas = txtPwd.Text; sql = "select * from Liust_TeaLogin where lst_LoginTName='" + IDinfo + "' and lst_LoginTPas='******'"; int AgainP = con.OpreateData(sql); if (AgainP == 0) { MessageBox.Show("用户名或者密码错误!", "warning", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { GetLogin.GuestLogin = IDinfo; frmMainTea fmainTea = new frmMainTea();//教师窗口 this.Hide(); fmainTea.ShowDialog(); this.Close(); } } } }