private void updateStudentsToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();
            update_student_info ups = new update_student_info();

            ups.Show();
        }
        private void emp_view_update_FormClosing(object sender, FormClosingEventArgs e)
        {
            update_student_info o = new update_student_info();

            o.Show();
        }
        private void pictureBox2_Click(object sender, EventArgs e)
        {
            update_student_info o = new update_student_info();

            o.Show();
        }
        private void view_Update_Usser__FormClosing(object sender, FormClosingEventArgs e)
        {
            update_student_info o = new update_student_info();

            o.Show();
        }