private void quảnLýThểLoạiToolStripMenuItem_Click(object sender, EventArgs e)
{
QuanLyTheLoai f = new QuanLyTheLoai();
f.MdiParent = this;
f.Show();
}
private void Button_Click_4(object sender, RoutedEventArgs e)
{
QuanLyTheLoai quanLyTheLoai = new QuanLyTheLoai();
quanLyTheLoai.myEvent += new EventHandler(OnClosedQuanLyTheLoaiWindow);
BtQuanLyTheLoai.IsEnabled = false;
quanLyTheLoai.Show();
}
