script step to check when no related record exists

[pfrings]

I have a a portal showing records from Table 2. The portal is in a layout linked to Table 1. There is a button in the portal which activates a script to create or update a record in Table 3. I have a script which creates a new related record, or only updates some fields if it finds there is already a related record.

What I can't work out is how to check when there is no record from Table 2 showing through the portal. In other words, if a user presses the button by mistake when there is no record showing in a particular portal row.

I'm sure there is a very obvious function to do this, but I'm dammed if I can find it...

[Ender]

Testing for the presence of the primary ID is sufficient:

If [ not isempty ( Table 2::RecordID )

Go to Related Record []

End If

[pfrings]

Thanks for your quick response, much appreciated.