Avatar of ITsolutionWizard
ITsolutionWizard
Flag for United States of America asked on

asp.net control validation email

I use the following asp net email validator and it works fine until today I get an email (jsmiths@ca--homes.com).
And I want to ensure to accept this string '--'.

how can I do that with my current email validator?


<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
            ControlToValidate="NewEmailAddressTextBox" CssClass="red bold"
            Display="Dynamic" ErrorMessage="*"
            ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
            ValidationGroup="AddNewEmail"></asp:RegularExpressionValidator>
ASPASP.NETC#

Avatar of undefined
Last Comment
ITsolutionWizard

8/22/2022 - Mon
David Favor

Better to do this...

1) Split out user + host parts.

2) Run many regexp patterns against each separately.

Tip: Trying to create a validator with a single regular expression is near impossible to debug or extend.
ITsolutionWizard

ASKER
I guess how to create ValidationExpression to accept -- and @ will be helpful.
ASKER CERTIFIED SOLUTION
ITsolutionWizard

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!
James Murphy