Hmmm... Let me step back a step then, maybe there is another way than a custom property...

What I really want to do is to run some code in my valid event if the user has changed the value of the text box. (Basically, it does a lookup into another table and fills fields based off the current ssn.) But if the user doesn't make a change to the ssn, I would rather not run the code.

So, what is the best way to tell if a user has changed the value of a text box during the valid event?

>>Arrgh. Slightly more than a minute. Oh well.
>>
>>So the only way to do it is to add a custom class? Yech.
>>
>>Would it work if I put in the form's init method a call to the text box's addproperty method?
>
>It's supposed to work in VFP6 (basically I'm still with VFP5), but the normal OO design (IMHO) does not like it.