private void button4_Click(object sender, EventArgs e) { ProfessorGradeForm login = new ProfessorGradeForm(); this.Hide(); login.Show(); }
private void loginButton_Click(object sender, EventArgs e) { //try //{ DataTable dt = new DataTable(); Database database = new Database(); dt = database.Read("Select Role from Users Where Username='******' and Password='******'"); if (dt.Rows.Count == 1) { var role = dt.Rows[0][0].ToString(); switch (role) { case "Student": role = "StudentID"; break; case "Professor": role = "ProfessorID"; break; case "Administrator": role = "ID"; break; } dt = database.Read("Select " + role + " from Users Where Username='******' and Password='******'"); var userID = dt.Rows[0][0].ToString(); if (role == "StudentID") { StudentViewForm studentViewForm = new StudentViewForm(); studentViewForm.userName = unameBox.Text; studentViewForm.userID = userID; this.Hide(); studentViewForm.Show(); } else if (role == "ProfessorID") { ProfessorGradeForm professorGradeForm = new ProfessorGradeForm(); professorGradeForm.userName = unameBox.Text; professorGradeForm.userID = userID; this.Hide(); professorGradeForm.Show(); } else if (role == "ID") { AdminForm adminForm = new AdminForm(); adminForm.userName = unameBox.Text; adminForm.userID = userID; this.Hide(); adminForm.Show(); } } else { MessageBox.Show("Username/Password not found. Please try again."); } }