Checking for a blank subreport to pass to the main report

[crystaldev1]

Hello. I'm using CR 9 and Sql Server 2005. I have a group B section which I would like to suppress if subreport (group A) is null. What is the best way to check for the null subreport? I am passing shared variable into the subreport. Thanks.

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Group A (Contains subreport)
Group B (Suppress if subreport is null)
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[Madawc]

Pre-set a shared variable to zero or N in the main report. Reset in the subreport if it runs at all.

Madawc Williams (East Anglia, UK). Using Crystal 10 & 11.5 with Windows XP

 

[Madawc]

Or you could test the value for null, IsNull, a test that must be done first because nulls stop a formula field or other test in Crystal.

Madawc Williams (East Anglia, UK). Using Crystal 10 & 11.5 with Windows XP