Chris,
The best explanation I ever read on coded data environments has been published in the Codebook News, volume 1. It's freely available from www.savvysolutions.com

José

>I'm trying to use the tables attached to a forms dataenvironment in the procedures. I've discovered that I need to refer to them by number, and have used the original numbers from the 'cursor' names. The documentation for this stuff is non-existent and no examples that I've been able to find so far. I've even gotten a couple expensive books that haven't been much help.
>
>Now I'm trying to use the indices. I added an index 'tag' in the data definition for one of the tables in the dataenvironment cursor object. I've coded it into my procedure as a number, but now I'm getting an error message, tag not found. Any and all clues will be acted upon. Thanks