public Cupons Add(Cupons item) { if (item == null) { throw new ArgumentNullException("item"); } item.IdCupom = _nextId++; Cupons.Add(item); return(item); }
public bool Update(Cupons item) { if (item == null) { throw new ArgumentNullException("item"); } int index = Cupons.FindIndex(p => p.IdCupom == item.IdCupom); if (index == -1) { return(false); } Cupons.RemoveAt(index); Cupons.Add(item); return(true); }