I think, you can try When event of the Grid. It will put you close...

>>Hi Nadya
>Thanks for the suggestion, I am going to give it a try. By the way, since there is no GotFocus event for a grid, is there a way of sensing when a grid does have the focus? Just thought I'd slip in a question that I've been dealing with.
>
>Thanks,
>Regards,
>Carmen
>Hi Carmen,
>>
>>I second Sergey's suggestion. I tested PDM and can assure you, this is a great utility, which can beat all your expectations!
>>
>>
>>>>>Thanks Sergey
>>> I only feel slightly stupid now! For some reason I didn't even look in the Wizards, and I've been working with VFP 6.0 for about a year now! Yikes!
>>>
>>>Thanks,
>>>Carmen
>>>Does anyone know of a good way to do documentation for a VFP 6.0 project? Other than internal comments and written documentation, is there a product such as the old FOXDOC that will give you reports covering files, forms, methods, properties on methods etc?
>>>>>
>>>>>
>>>>There's Documentation Wizard in VFP. You can also try PDM - new version Thread #685374.