protected override void GetFormSourceData(object[] parameters)
        {
            if (parameters[0] == null)
            {
                _loan   = (Loan)parameters[2];
                _entity = Payment.New(_loan.GetInfo(false));
                _entity.BeginEdit();
                _entity.Oid = -1;
                _loans      = LoanList.NewList(_loan);

                PaymentList pagos = PaymentList.GetListByPrestamo(_loans[0], false);

                _loans[0].TotalPagado = 0;
                _loans[0].Asignado    = 0;

                foreach (PaymentInfo pago in pagos)
                {
                    if (pago.EEstado == moleQule.Base.EEstado.Anulado)
                    {
                        continue;
                    }

                    _loans[0].TotalPagado += pago.Importe;
                }

                _loans[0].Pendiente        = _loans[0].Importe - _loans[0].TotalPagado;
                _loans[0].PendienteAsignar = _loans[0].Pendiente;
            }
            else
            {
                _entity = (Payment)parameters[0];
                _entity.BeginEdit();
                _entity.Oid = -1;
                _loans      = LoanList.GetPendientesList(_entity.GetInfo(false));
            }


            //Asociamos los gastos previamente vinculados
            foreach (TransactionPayment item in _entity.Operations)
            {
                LoanInfo prestamo = _loans.GetItem(item.OidOperation);
                prestamo.Vincula();
            }
        }