Any email validation functions?

[VB Programmer]

Does anyone have any VB.NET functions which validate an email address?
Could you post it? I would like it to do as much as the regular expression
validator if possible.

Thanks in advance!

[Brian Henry]

Re: Any email validation functions?

there should already be a email validator regex function in the validators
to test for this (at least there is in asp.net) but here you go...

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

regex function to validate all email addresses

"VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
news:uurcDSqoEH A.2636@TK2MSFTN GP09.phx.gbl...[color=blue]
> Does anyone have any VB.NET functions which validate an email address?
> Could you post it? I would like it to do as much as the regular
> expression
> validator if possible.
>
> Thanks in advance!
>
>[/color]

[VB Programmer]

Re: Any email validation functions?

Thanks, but I'm looking for a VB.NET version. Do you know of one?

"Brian Henry" <brianiupmsdn@n ewsgroups.nospa m> wrote in message
news:exT$dVqoEH A.536@TK2MSFTNG P11.phx.gbl...[color=blue]
> there should already be a email validator regex function in the validators
> to test for this (at least there is in asp.net) but here you go...
>
> \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
>
> regex function to validate all email addresses
>
> "VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
> news:uurcDSqoEH A.2636@TK2MSFTN GP09.phx.gbl...[color=green]
> > Does anyone have any VB.NET functions which validate an email address?
> > Could you post it? I would like it to do as much as the regular
> > expression
> > validator if possible.
> >
> > Thanks in advance!
> >
> >[/color]
>
>[/color]

[VB Programmer]

Re: Any email validation functions?

Oh... I got it! Here's one I'd like to share. If anyone has any better one
please let me know.

Private Function EmailIsValid(By Val strEmailAddress As String) As
Boolean
Return Regex.IsMatch(s trEmailAddress,
"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9
\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
End Function

Thanks!


"VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
news:%234QS8dqo EHA.3668@TK2MSF TNGP15.phx.gbl. ..[color=blue]
> Thanks, but I'm looking for a VB.NET version. Do you know of one?
>
> "Brian Henry" <brianiupmsdn@n ewsgroups.nospa m> wrote in message
> news:exT$dVqoEH A.536@TK2MSFTNG P11.phx.gbl...[color=green]
> > there should already be a email validator regex function in the[/color][/color]
validators[color=blue][color=green]
> > to test for this (at least there is in asp.net) but here you go...
> >
> > \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
> >
> > regex function to validate all email addresses
> >
> > "VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
> > news:uurcDSqoEH A.2636@TK2MSFTN GP09.phx.gbl...[color=darkred]
> > > Does anyone have any VB.NET functions which validate an email address?
> > > Could you post it? I would like it to do as much as the regular
> > > expression
> > > validator if possible.
> > >
> > > Thanks in advance!
> > >
> > >[/color]
> >
> >[/color]
>
>[/color]

[Jos]

Re: Any email validation functions?

VB Programmer wrote:[color=blue]
> Oh... I got it! Here's one I'd like to share. If anyone has any
> better one please let me know.
>
> Private Function EmailIsValid(By Val strEmailAddress As String) As
> Boolean
> Return Regex.IsMatch(s trEmailAddress,
>[/color]
"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9[color=blue]
> \-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
> End Function[/color]

Unfortunately, this code will refuse mails from the "museum" domain.

Replace the {2,4} with {2,6} to allow for this domain as well.

--

Jos

[VB Programmer]

Re: Any email validation functions?

Thanks! Great catch!

"Jos" <josnospambrand ers@fastmail.fm > wrote in message
news:%23vvL2Ito EHA.1992@TK2MSF TNGP09.phx.gbl. ..[color=blue]
> VB Programmer wrote:[color=green]
> > Oh... I got it! Here's one I'd like to share. If anyone has any
> > better one please let me know.
> >
> > Private Function EmailIsValid(By Val strEmailAddress As String) As
> > Boolean
> > Return Regex.IsMatch(s trEmailAddress,
> >[/color]
>[/color]
"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9[color=blue][color=green]
> > \-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
> > End Function[/color]
>
> Unfortunately, this code will refuse mails from the "museum" domain.
>
> Replace the {2,4} with {2,6} to allow for this domain as well.
>
> --
>
> Jos
>
>[/color]

[Jay B. Harlow [MVP - Outlook]]

Re: Any email validation functions?

In addition to the other comments:

MSDN has a handful of common Regular Expressions
patterns.

Here is the e-mail example:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconexampleconfirmingvalidemailformat.asp

The same section has a number of other examples.


I also find these pages to be useful when dealing with Regular Expressions:

http://www.regular-expressions.info/

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpgenref/html/cpconRegularExpressionsLanguageElements.asp

Hope this helps
Jay

"VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
news:uurcDSqoEH A.2636@TK2MSFTN GP09.phx.gbl...[color=blue]
> Does anyone have any VB.NET functions which validate an email address?
> Could you post it? I would like it to do as much as the regular
> expression
> validator if possible.
>
> Thanks in advance!
>
>[/color]

[Vince]

Re: Any email validation functions?

I don't get anything of what is happening in the function!!! How does this
validate Email addresses and why not the museum domain??
Confused & (probably) stupid.

"VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
news:evRX4h0oEH A.3520@TK2MSFTN GP11.phx.gbl...[color=blue]
> Thanks! Great catch!
>
> "Jos" <josnospambrand ers@fastmail.fm > wrote in message
> news:%23vvL2Ito EHA.1992@TK2MSF TNGP09.phx.gbl. ..[color=green]
> > VB Programmer wrote:[color=darkred]
> > > Oh... I got it! Here's one I'd like to share. If anyone has any
> > > better one please let me know.
> > >
> > > Private Function EmailIsValid(By Val strEmailAddress As String) As
> > > Boolean
> > > Return Regex.IsMatch(s trEmailAddress,
> > >[/color]
> >[/color]
>[/color]
"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9[color=blue][color=green][color=darkred]
> > > \-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
> > > End Function[/color]
> >
> > Unfortunately, this code will refuse mails from the "museum" domain.
> >
> > Replace the {2,4} with {2,6} to allow for this domain as well.
> >
> > --
> >
> > Jos
> >
> >[/color]
>
>[/color]

[Vince]

Re: Any email validation functions?

Never mind, just saw Jay's post.
"Vince" <sdsad@fsd.co m> wrote in message
news:ulzrCEDpEH A.648@tk2msftng p13.phx.gbl...[color=blue]
> I don't get anything of what is happening in the function!!! How does this
> validate Email addresses and why not the museum domain??
> Confused & (probably) stupid.
>
> "VB Programmer" <Dont*NoSpam-Please*@jEmail. com> wrote in message
> news:evRX4h0oEH A.3520@TK2MSFTN GP11.phx.gbl...[color=green]
> > Thanks! Great catch!
> >
> > "Jos" <josnospambrand ers@fastmail.fm > wrote in message
> > news:%23vvL2Ito EHA.1992@TK2MSF TNGP09.phx.gbl. ..[color=darkred]
> > > VB Programmer wrote:
> > > > Oh... I got it! Here's one I'd like to share. If anyone has any
> > > > better one please let me know.
> > > >
> > > > Private Function EmailIsValid(By Val strEmailAddress As String)[/color][/color][/color]
As[color=blue][color=green][color=darkred]
> > > > Boolean
> > > > Return Regex.IsMatch(s trEmailAddress,
> > > >
> > >[/color]
> >[/color]
>[/color]
"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9[color=blue][color=green][color=darkred]
> > > > \-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
> > > > End Function
> > >
> > > Unfortunately, this code will refuse mails from the "museum" domain.
> > >
> > > Replace the {2,4} with {2,6} to allow for this domain as well.
> > >
> > > --
> > >
> > > Jos
> > >
> > >[/color]
> >
> >[/color]
>
>[/color]