public double GetLatestTransactionByEmploye(int codeEmploye) { double LatestTransaction = 0; try { //-- GETTING DATA LatestTransaction = _operationRepository.GetLatestTransactionByEmploye(codeEmploye); //-- END GETTING DATA } catch (NullReferenceException Exception) { System.Diagnostics.Debug.WriteLine(Exception.Message); } return(LatestTransaction); }