public void MakeTransfer() { InProgress = true; Message = Messages.ITransferInProgress; if (PartnerName != null) { Motif = PartnerName + " - " + Motif; } if (ToExternal) { OperationService.BeginMakeTransferToExternal(From.Id, CreditAccountIban, Amount, Motif, EndMakeTransferToExternal, null); } else { OperationService.BeginMakeTransfer(From.Id, To.Id, Amount, Motif, EndMakeTransfer, null); } }