private void BtnBack_Click(object sender, EventArgs e) { if (studentnav != null) { studentnav.Show(); this.Close(); } else if (teachernav != null) { teachernav.Show(); this.Close(); } }
private void BtnLogin_Click(object sender, EventArgs e) { try { using (SampleDataContext db = new SampleDataContext()) { if (va.ValidateEmpty() == false) { return; } user = db.Users.Where(u => u.username == TbxUsername.Text && u.password == TbxPassword.Text) .FirstOrDefault(); if (user != null) { if (CheckStudent() == true) { FrStudentNav studentnav = new FrStudentNav(student); studentnav.Show(); this.Hide(); } else if (CheckTeacner() == true) { FrTeacherNav teachernav = new FrTeacherNav(this.teacher); teachernav.Show(); this.Hide(); } } else if (TbxUsername.Text == "admin" && TbxPassword.Text == "admin") { FrAdminNav adminnav = new FrAdminNav(); adminnav.Show(); this.Hide(); } else { GlobalUse.GetErrorMessage("Wrong username or password!"); va.Clear(); } } } catch (Exception ex) { GlobalUse.GetErrorMessage("Error ! " + ex.Message); } }
private void BtnCancel_Click(object sender, EventArgs e) { if (student != null) { studentnav.student = this.student; studentnav.Show(); if (change != null) { change.Close(); } this.Close(); } else if (teacher != null) { teachernav.teacher = this.teacher; teachernav.Show(); if (change != null) { change.Close(); } this.Close(); } }