Valid regular expression not working with validator control

[Andrew Jocelyn]

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.

(?<!@emailaddre ssnotallowed\.o rg)$

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

Thanks
Andrew

[Jesse Houwing]

Re: Valid regular expression not working with validator control

Hello Andrew,

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.
>
(?<!@emailaddre ssnotallowed\.o rg)$
>
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@( ?!emailaddressn otallowed\.org$ )restofthedomai nregex$

--
Jesse Houwing
jesse.houwing at sogeti.nl

[Andrew Jocelyn]

Re: Valid regular expression not working with validator control

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


"Jesse Houwing" <jesse.houwing@ newsgroup.nospa mwrote in message
news:21effc9046 4ad8ca4c7399891 14d@news.micros oft.com...

Hello Andrew,
>

>Hi
>>
>I get a JavaScript error with this expression when using the
>RegExpValidato r. Also if I switch off client script the server side
>code validator finds a match regardless of the entered string.
>>
>(?<!@emailaddr essnotallowed\. org)$
>>
>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@( ?!emailaddressn otallowed\.org$ )restofthedomai nregex$
>
--
Jesse Houwing
jesse.houwing at sogeti.nl
>
>

[Jesse Houwing]

Re: Valid regular expression not working with validator control

Hello Andrew,

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.

^[^@]+@(?!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
"Jesse Houwing" <jesse.houwing@ newsgroup.nospa mwrote in message
news:21effc9046 4ad8ca4c7399891 14d@news.micros oft.com...
>

>Hello Andrew,
>>

>>Hi
>>>
>>I get a JavaScript error with this expression when using the
>>RegExpValidat or. Also if I switch off client script the server side
>>code validator finds a match regardless of the entered string.
>>>
>>(?<!@emailadd ressnotallowed\ .org)$
>>>
>>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@ (?!emailaddress notallowed\.org $)restofthedoma inregex$
>>
>--
>Jesse Houwing
>jesse.houwin g at sogeti.nl

--
Jesse Houwing
jesse.houwing at sogeti.nl