Using report.subreport.hasdata with multiple IIf's

Question

Using report.subreport.hasdata with multiple IIf's

Robbie Doo 65

When I'm using (subreport.hasdata.report) feature on main form to pull data with one IIf option, it works fine. However, when I add another IIf, I get and error.

For example:

=IIf([rpt01_TestCount].[Report].[HasData] And [PU_Loc]=1 And [Trvl_Type]=1,[rpt01_TestCount].[Report].[Text0],0)

Any help on this is appreciated.

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Answer 1

Senthil kumar 2,410

Hi @Robbie Doo

Access sometimes still evaluates the inner expression too early. This version forces Access to short‑circuit:

=IIf([rpt01_TestCount].[Report].[HasData]=True And [PU_Loc]=1 And [Trvl_Type]=1,
        [rpt01_TestCount].[Report].[Text0],
        0)

But if this still errors, use the nested version above — it is the most stable.

Use nested iif

=IIf([rpt01_TestCount].[Report].[HasData],
        IIf([PU_Loc]=1 And [Trvl_Type]=1,
            [rpt01_TestCount].[Report].[Text0],
            0),
        0)

Access evaluates expressions left to right. With the nested version:

If the subreport has no data, Access returns 0 immediately

It never tries to evaluate [Text0] or the other conditions

No error

Thanks.

Robbie Doo 65 Reputation points

2026-08-31T17:53:27.9966667+00:00

Thank you Senthil for your help.