void showformtraphong(object sender, EventArgs e)
{
frm_traphong frm = new frm_traphong();
Button btn = (Button)sender;
frm.TenPhong = btn.Text;
frm.MaNhanVien = MaNV;
Visible = false;
frm.ShowDialog();
}
private void btn_traphong_ItemClick(object sender, ItemClickEventArgs e)
{
frm_traphong forms = new frm_traphong();
forms.ShowDialog();
}