GUID is null?

[raysefo]

I wonder if there is a way to check GUID is null. ReferenceId is GUID.

 var result= await _unitOfWork.GameBankRepository.GetGamesAsync(g =>
                        g.productCode == requestDto.productCode && g.referenceId == null);

Thank you in advance.

 

[JohnH]

Guid is a struct, a value type must be nullable to hold null. "0" for a Guid is Guid.Empty Field (System) | Microsoft Docs

 

[raysefo]

thank you.