expression Validator

November 5th, 2008, 03:32 PM

I am using a regular exp validator to accept alphabets:

ValidationExpression="[A-Za-z]*"
But , I also want accept these special characters along with
the alphabets: ( ,), {,} ,[,].
How should I modify the above expression????

Alienaheart

Old Pedant · November 5th, 2008, 04:36 PM

Code:

    ValidationExpression="[A-Za-z\(\)\{\}\[\]]*"

Just put a backslash in front of any special character.

But I hope you realize that this expression will make the following inputs *LEGAL AND ACCEPTED*:

--------x--------
a$$$$$$$$$$$$
[**************
19111731111(8817721
%%%%%%%%X%%%%%%%%

And many more.

If you mean that you want *ONLY* the characters you have listed, then you *MUST* add the beginning-of-text and end-of-text markers, thus:

Code:

    ValidationExpression="^[A-Za-z\(\)\{\}\[\]]*$"