I have experimented with it but the situation hasn't arisen yet to put it into production.....I did a working application with the concept in VFP3 in early 96 that tested out OK but the application was never implemented because the application went client/server before production.

>Hmmm. Guess it's all the physics talk--I'm gonna have to mull this over :-) Have you implemented this?
>
>>If a form presents a parent row and a child in...let's say....a grid you can protect a record from being used by others (parent) but still only expose those child records applicable for insert or append because other users cannot mess with the children when mommy and daddy are unavailable. In theory :)