creating syntax of regularexpression for multiple email address in asp.net

Question

I want to create a regular expression for a RegularExpressionValidator in Asp.net...

I want to create the following expression

(emailaddress ([,][SPACE]* emailaddress)* )?

emailaddress = \w+([-+.']\w+)@\w+([-.]\w+).\w+([-.]\w+)*

please check if emailaddress is correct, and how can I create the syntax for the above expression thank you

Here's a page with a regular expression email address validator: ex-parrot.com/pdw/Mail-RFC822-Address.html - email addresses are more complicated that you thought. — Tom Whittock
– Tom Whittock, Commented Aug 21, 2012 at 17:27

Community · Accepted Answer · 2017-05-23 10:24:38Z

1

Building on Using a regular expression to validate an email address,

ValidationExpression="(?:(?:^|,\s*)[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})\s*)+"

edited May 23, 2017 at 10:24

CommunityBot

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answered Aug 21, 2012 at 17:27

Andrew Cheong

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Aghilas Yakoub · Accepted Answer · 2012-08-21 17:34:25Z

1

you can try with

ValidationExpression="^(([^<>()[\]\\.,;:\s@\""]+"

                        + @"(\.[^<>()[\]\\.,;:\s@\""]+)*)|(\"".+\""))@"

                        + @"((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"

                        + @"\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+"

                        + @"[a-zA-Z]{2,}))$"

You can use this site in order to create your regex : RegexHero

edited Aug 21, 2012 at 17:34

answered Aug 21, 2012 at 17:29

Aghilas Yakoub

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