Valid regular expression not working with validator control

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Andrew Jocelyn - 04 Mar 2008 14:55 GMT

Hi

I get a JavaScript error with this expression when using the
RegExpValidator. Also if I switch off client script the server side code
validator finds a match regardless of the entered string.

(?<!@emailaddressnotallowed\.org)$

Is there a way of writing this so it works with the validator in both client
side and server side?

Thanks
Andrew

Reply to this Message

Jesse Houwing - 05 Mar 2008 00:01 GMT

Hello Andrew,

> Hi
>
[quoted text clipped - 6 lines]
> Is there a way of writing this so it works with the validator in both
> client side and server side?

Look behinds are not supported in Client Side code. So you need to rewrite
this to either a full expression or to use a look ahead like this:

^regexuptothe@(?!emailaddressnotallowed\.org$)restofthedomainregex$

--
Jesse Houwing
jesse.houwing at sogeti.nl

Reply to this Message

Andrew Jocelyn - 05 Mar 2008 11:37 GMT

Hi

thanks for the tip. I still can't get what I want to work. I'm using
Expresso to test.

Basically I want to make sure that if an input text includes a certain
domain then validation fails, e.g.

anyone@not-allowed-domain.com fails
anyone@allowed-domain.com succeeds

Please bear with me as I'm a complete novice with regular expressions.

Thanks again
Andrew

> Hello Andrew,
>
[quoted text clipped - 17 lines]
> Jesse Houwing
> jesse.houwing at sogeti.nl

Reply to this Message

Jesse Houwing - 05 Mar 2008 11:44 GMT

Hello Andrew,

> Hi
>
[quoted text clipped - 7 lines]
> anyone@allowed-domain.com succeeds
> Please bear with me as I'm a complete novice with regular expressions.

^[^@]+@(?!not-allowed-domain.com$).*$

should do, though it doesn't check the syntax of the email address itself,
it does exclude the domain you want.

Jesse

> Thanks again
> Andrew
[quoted text clipped - 21 lines]
>> Jesse Houwing
>> jesse.houwing at sogeti.nl

--
Jesse Houwing
jesse.houwing at sogeti.n

Reply to this Message

Rate this thread:

Valid regular expression not working with validator control

Free Magazines