>Hi everybody,
>
>Just want to check, that there is no Input Mask/Format method to make sure, that all 9 (for SSN) characters are filled by the user?

No, there isn't one.

>
>And also related question: for my search form I would allow to search by social security. What do you think would be a good place to perform a check wheither all 9 chars were entered: on the control lostfocus or on the hitting Find button?

I think Find button is better place. This way you don't need extra check for Cancel button.