private void LoginButton_Click(object sender, EventArgs e) { if (string.IsNullOrEmpty(passwordTextbox.Text) || string.IsNullOrEmpty(userTextbox.Text)) { MessageBox.Show("Enter Username Or Password", "Invalid operation", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { UserInfo ob = new UserInfo(); ob = sd.GetUserName(username); if (ob.UserName == username && ob.UserPassword == password && ob.Status == 1) { Action frm = new Action(); frm.Show(); this.Hide(); } else if (ob.UserName == username && ob.UserPassword == password && ob.Status == 2) { searchTeacher frm1 = new searchTeacher(); frm1.Show(); this.Hide(); } else if (ob.UserName == username && ob.UserPassword == password && ob.Status == 3) { searchStudent frm2 = new searchStudent(); frm2.Show(); this.Hide(); } else { MessageBox.Show("Invalid User Name Or Password", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } }