private void btnAddNewStudent_Click(object sender, EventArgs e)
        {
            string firstName = txtFName.Text;
            string lastName  = txtLName.Text;
            int    ID;

            int.TryParse(txtID.Text, out ID);
            int score1;

            int.TryParse(txtScore1.Text, out score1);
            int score2;

            int.TryParse(txtScore2.Text, out score2);
            int score3;

            int.TryParse(txtScore3.Text, out score3);
            proxy.AddNewStudent(firstName, lastName, ID, new int[] { score1, score2, score3 });
        }