>Hi everybody,
>
>If a user types 0000 as a year in date fields, it converts automatically to 1900. Is it VFP native behavior? The user thinks, that it should display an invalid date message instead. What do you think? How can we make it generic?
>
>Thanks in advance.

Nadya,

I know you've already gotten your answer, but the best way to do this is something like this in the Valid clause

RETURN (YEAR(This.Value) >= 2000)

You'll have to modify the year.