private void button_remove_sched_lecturersFromDept_Click(object sender, EventArgs e)
        {
            this.Hide();
            A_removeSchedLecturer_fromDept_forSecretary rem = new A_removeSchedLecturer_fromDept_forSecretary();

            rem.ShowDialog();
        }
 private void A_removeSchedLecturer_fromDept_forSecretary_Load(object sender, EventArgs e)
 {
     currentA_removeSchedLecturer_fromDept_forSecretary = this;
 }