protected virtual void HoursToTeach_button_Click(object sender, EventArgs e)
{
ChooseHoursToTeach form = new ChooseHoursToTeach(ref emp);
this.Hide();
form.FormClosed += new FormClosedEventHandler(FormClosedHandling);
form.ShowDialog();
}
protected override void HoursToTeach_button_Click(object sender, EventArgs e)
{
EmpInterface emp = this.lecturer;
ChooseHoursToTeach form = new ChooseHoursToTeach(ref emp);
this.Hide();
form.FormClosed += new FormClosedEventHandler(FormClosedHandling);
form.ShowDialog();
}