Regular expression to validate name in .NET multilingual web application

how can i write a regular expression to validate name field in a multilingual web application, i want to validate the name field for non-English languages e.g. Spanish or German, and we need to make sure that no one enter digits or special characters. I'm using .NET 2.0

I believe we can't use expression as below for 开发者_运维问答non-English language.

^[a-zA-Z]{1,20}$

Any help will be highly appreciated!

I got this Regular Expression, it works fien when i uses Regex Builder but when i try it in actual web application it fails:

^\p{L}[\p{L}\p{Pd}\x27]*\p{L}$

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use \w for letter. it is multilingual friendly