private void btSua_Click_1(object sender, EventArgs e)
        {
            FFoodEdit FSuaMonAn = new FFoodEdit(Id, lbTen.Text, lbGia.Text, lbGiamGia.Text, lbTrangThai.Text, lbLoai.Text);

            FSuaMonAn.FormClosed += FSuaMonAn_FormClosed;;
            FSuaMonAn.ShowDialog();
        }
        private void btThem_Click(object sender, EventArgs e)
        {
            FFoodEdit ThemMon = new FFoodEdit();

            ThemMon.FormClosing += ThemMon_FormClosing;
            ThemMon.ShowDialog();
        }