asp.net validation. What is the RegularExpression for this?

Question

I want to allow only 9 numbers without any letters and the letter 'V' at the last. Altogether 10 digits.

Eg - 123456789V, 675645238V

not allowed letters other than 'V' or 'v' at the end.

What is the Expression should I use?

Answer 1

The regex will be (exactly 9 digits and V or v in the end):

^[0-9]{9}[Vv]$

If in the beginning or end can be some other symbols (to much something like this - aaa123456789Vbbbb ):

[0-9]{9}[Vv]