>>>When I create a form and put several tables into its Data Environment, is there anyway that I can check, from an event on the form, the number of tables in that Data Environment? I have created a form, using transaction processing, and in the form QueryUnload Event I need to loop through each table to see what changes the user has made. Any input would be greatly appreciated.
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>>You can get DE object names using AMEMBERS(,2). Then you loop through the returned array and check for table objects only. Though I don't know how it would help you in QueryUnload.
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>I'm stumped - in which cases you can omit a parameter by leaving just a comma, and in which you can't? I've tried this sometimes, and couldn't know in advance when it will work and when it will not.

No, no, I didn't want to omit first parameter: I just typed quickly :).