Include Nulls in Filter

Bill E

I am trying to create a filter to include nulls but it is excluding nulls.


I have tried this
(<TaxSummary."Summ_No">=<PaySummary."Summ_No">) or (<TaxSummary."Summ_No"> = null)


and this:
(<TaxSummary."Summ_No">=<PaySummary."Summ_No">) or (VarToStr(<TaxSummary."Summ_No">) = '')


and both exclude nulls, how can I include Nulls?

gpi

What TfrxReport.EngineOptions.ConvertNulls value?