private DateTime?GetEndExchange(int dateDocument) { StartFinancialYear1 = _currencyExchangesService.GetStartFinancialYear1(dateDocument); var GetEnd = (_currencyExchangesService.GetEndExchangeDoc(dateDocument)); ///* var GetEndEx =*/ GetEnd; if (GetEnd == null) { var getAcc = _accDocumentHeadersService.GetFirstAcc(dateDocument); if (getAcc != null) { GetEnd = getAcc; } else { GetEnd = StartFinancialYear1; } } return(GetEnd); }