private void label4_Click(object sender, EventArgs e)
        {
            StudentViewResults svr = new StudentViewResults();

            this.Hide();
            svr.Show();
        }
        private void StudentsViewResultspictureBox_Click(object sender, EventArgs e)
        {
            StudentViewResults svr = new StudentViewResults();

            this.Hide();
            svr.Show();
        }