It's not 100% what you are looking for, but I'm pretty sure you can do a 
"Records in Set"

$0:=Records in Set("MySet")

If the set does not exist, it will return 0.

Of course this is also true if the set exists with zero records in it.   ;-)

Randy Engle
XC2 Software LLC

-----Original Message-----
From: 4D_Tech [] On Behalf Of Kirk Brooks
Sent: Tuesday, October 18, 2016 7:35 AM
To: 4D iNug Technical <>
Subject: How to determine if a SET exists?

Hi all,
Is there a way to determine if a set exists? So far the only thing I've come up 
with requires keeping track of them as they are created. This is OK but 

It would be nice to have the equivalent of the 'Is a list' function.

4D Internet Users Group (4D iNUG)

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