protected override void UpdateFacturasCobro()
        {
            if (Datos_Cobros.Current == null)
            {
                Datos_FCobro.DataSource = null;
                return;
            }

            Charge cobro = (Charge)Datos_Cobros.Current;

            List <OutputInvoiceInfo> lista = new List <OutputInvoiceInfo>();

            foreach (CobroFactura cf in cobro.CobroFacturas)
            {
                OutputInvoiceInfo info = _facturas_cliente.GetItem(cf.OidFactura);
                if (info != null)
                {
                    lista.Add(info);
                }
            }

            Datos_FCobro.DataSource = OutputInvoiceList.GetChildList(lista);

            SetUnlinkedGridValues(Facturas_DGW.Name);
        }