Manually Check Email Address Validity

[stingrae]

I am validating an online form, and naturally one of the fields to validate is an email address.

Does anybody have a function available that checks the validay of a string to be a valid email address?

Unfortunately I need a bit more flexibility than is provided by the RegularExpressionValidator object - unless I can somehow call it without hard binding it (if that makes sense).

I can see that the following is used by this control as the Email format:

\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

Any ideas?

[jmcilhinney]

What is the additional flexibility that you need? Are you trying to limit domains or something like that?

[stingrae]

No, I just want to be able to check from within a code block. Like if strXYZ is aValidEmail then do suchandsuch .... i don't actually want to validate a text box...

[jmcilhinney]

You would just use a System.Text.RegularExpressions.Regex object with the same regular expression.

[stingrae]

cool... thanks. i had never seen that before and was just what i was after....

R

ps.... takes another aussie to solve my prob. cheers mate!

[jmcilhinney]

My ex-wife actually went to the same school as Micheal Hutchence. He's practically my brother. I don't know Kevin Bacon though.

[penagate]

Why you shouldn't use RegEx to validate email addresses

And here is the RFC 822 standard for email addresses, although it doesn't provide an implementation of validating them.

It's actually quite a complex operation, as this thread will attest.

Anyway, HTH


Edit: I don't know what fool decided to put acronyms in the word filter, but in the last link, replace the asterisk'ed letters with W, T, and F, in that order