private void UC_Home_Admin_Load(object sender, EventArgs e)
{
ChiTietDonHangDao dao = new ChiTietDonHangDao();
labelSoldBooks.Text = dao.allBookSold().ToString();
ChiTietPhieuNhapDao cDao = new ChiTietPhieuNhapDao();
labelPurchasedBook.Text = cDao.purchasedBook().ToString();
KhachHangDao khDao = new KhachHangDao();
labelCustomer.Text = khDao.countCustomer().ToString();
}
