public ActionResult ViewCart(FormCollection form)
{
var deliveryDate = Convert.ToDateTime(form["deliveryDate"], new CultureInfo("id-ID"));
var deliveryTime = Convert.ToByte(form["deliveryTime"]);
var voucherCode = form["voucherCode"];
cartManager.DoCheckOut(deliveryDate, deliveryTime, voucherCode);
return(RedirectToAction("CheckOut"));
}