public IActionResult GetById(Guid id) { var c = accountService.GetById(id); if (c == null) { return(NotFound()); } var accountDto = new AccountDto { CompanyName = c.CompanyName, VatNumber = c.VatNumber, Telephone = c.Telephone, Straat = c.Address?.Straat, Number = c.Address?.Number, Country = c.Address?.Country, Zipcode = c.Address?.Zipcode }; var accountManagersFromDb = accountManagerService.GetByAccount(id); foreach (var accountManager in accountManagersFromDb) { accountDto.AccountManagers.Add(new AccountManagerDto { Account = accountDto, Employee = Mapper.MapEmployee(employeeService.GetById(accountManager.EmployeeId)), IsActive = accountManager.IsActive }); } return(Ok(accountDto)); }