Again, not helping w/ the checkbox issue, but i found a VFP8 example that appears to be doing something similar to what u are doing.

"Developer contributed code" page. near the botton is a contribution by Darrell Austin.

https://www.quickbase.com/db/7pdyxrzr?a=q&qid=5#Top



>I'm creating a little system to interface to quickbooks inventory. I want the user to hit a button that will populate the system with the inventory items from qb. Then click a checkbox in the grid that will indicate which items that are necessary for the process.
>
>Using the smarttags I've added a checkbox column to the grid. Then in code, after I've retrieved the xml file from qb, I add 2 more columns for the item key and description.
>
>I noticed a little issue. If I click on any of the grid columns to reorder the grid, any checks are cleared.
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>Any suggestions on what I need to set for the checkboxes to maintain their values?
>
>Thanks,
>
>PF