public string GetSicSource(DateTime?maxDate = null)
{
if (maxDate == null || maxDate.Value == DateTime.MinValue)
{
maxDate = SectorType.GetAccountingStartDate().AddYears(1);
}
return(OrganisationSicCodes
.FirstOrDefault(s => s.Created < maxDate.Value && (s.Retired == null || s.Retired.Value > maxDate.Value))
?.Source);
}
public string GetSicSource(DateTime accountingDate)
{
return(OrganisationSicCodes.FirstOrDefault(s =>
s.Created < accountingDate && (s.Retired == null || s.Retired.Value > accountingDate))
?.Source);
}