Vlad,
I believe that this technique no longer works in VFP 5. At least this is what I interpret from some notations by Drew Speedie in the Visual MaxFrame product.
Pity, really, as it seemed such a nice example of "polymorphism".

regards,
Jim N

>Hi!
>
>You should add empty Refresh() method in your Label class, after that
>label's caption will be refreshed automatically.
>
>Have a happy day
>Vladimir Shevchenko
>
>> I can use a text box for a variable or field but I want to display the
>> addition of two fields such as
>> field1 + field2
>> I tried a Label with caption=expression but did not update upon changing
>> field1 and field2