private void buttonResultAdd_Click(object sender, EventArgs e) { try { //Result r = new Result(); int cId = Int32.Parse(comboBoxClass.Text); int secId = Int32.Parse(comboBoxSection.Text); int sId = Int32.Parse(textBoxSearchStudent.Text); int coId = Int32.Parse(comboBoxCourse.Text); int tMark = Int32.Parse(textBoxTotalMark.Text); int obMark = Int32.Parse(textBoxObtainedMark.Text); int b = TeacherController.AssignResult(cId, secId, sId, coId, tMark, obMark); if (b == 0) { MessageBox.Show("Result Added"); this.Close(); } else if (b == 2) { MessageBox.Show("Result for this course already added"); } else { MessageBox.Show("You don't have access to this student result"); } /*int r = Int32.Parse(comboBoxClass.Text); * Console.WriteLine(r + "999");*/ } catch (Exception) { MessageBox.Show("Invalid input"); } }