public List <stock> Lstockuso(List <serviciostock> Lstockservi) { Buscadores bus = new Buscadores(); List <stock> Lstock = bus.Lstock(); List <stock> stockactivo = new List <stock>(); foreach (stock Stock in Lstock) { foreach (serviciostock Servistock in Lstockservi) { if (Stock.id_stock == Servistock.id_stock) { stockactivo.Add(Stock); } } } return(stockactivo); }