/// <summary>
        /// Guarda los datos de un albaran al historial de albaranes
        /// </summary>
        /// <param name="_albaran"></param>
        /// <returns></returns>
        public static Boolean guardarAHistorial(HistoricoAlbarane _albaran)
        {
            recso2011DBEntities gestor = claseIntercambio.getGestor();
            int cont = (from e in gestor.HistoricoAlbaranes
                        where e.numAlbaran == _albaran.numAlbaran
                        select e).Count();

            if (cont > 0)
            {
                HistoricoAlbarane albaran = (from e in gestor.HistoricoAlbaranes
                                             where e.numAlbaran == _albaran.numAlbaran
                                             select e).First <HistoricoAlbarane>();

                /*
                 * si se quiere actualizar poner el codigo aqui
                 */
            }
            else
            {
                _albaran.id = DateTime.Today.Year.ToString() + DateTime.Today.Month.ToString() + DateTime.Today.Day.ToString() + "_" + DateTime.Now.ToShortTimeString().Replace(":", "") + "_" + _albaran.numAlbaran;

                gestor.AddToHistoricoAlbaranes(_albaran);
            }
            gestor.SaveChanges(System.Data.Objects.SaveOptions.AcceptAllChangesAfterSave);
            return(true);
        }