Thanks!
It's amazing what you can do when you're bored :-)
Seriously, I had to do something like this years ago in FPW2.6 for a journal entry application and so, therefore, I was able to avoid a lot of the pitfalls of figuring out what would work. I like Mark's suggestion of using AddProperty instead of the hard-wired "DTControlSource" property.
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John Koziol, ex-MVP, ex-MS, ex-FoxTeam. Just call me "X"
"When the going gets weird, the weird turn pro" - Hunter Thompson (Gonzo) RIP 2/19/05