//Huang Yuzhe
public ActionResult Voucher()
{
List <StockRecord> vouchers = _stockRecordDAO.FindVoucher();
List <float> prices = new List <float>();
foreach (StockRecord voucher in vouchers)
{
float price = _itemDAO.FindPriceById(voucher.IdItem);
prices.Add(price);
}
ViewData["prices"] = prices;
ViewData["vouchers"] = vouchers;
return(View());
}