G
Guest
Hi
How to validate an email address in windows application
Thanks in advance
How to validate an email address in windows application
Thanks in advance
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S
Sparky
Public Shared Function IsValidEmail(ByVal strIn As String) As Boolean
' Return true if strIn is in valid e-mail format.
Return Regex.IsMatch(strIn,
("^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA
-Z]{2,4}|[0-9]{1,3})(\]?)$"))
End Function
' Return true if strIn is in valid e-mail format.
Return Regex.IsMatch(strIn,
("^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA
-Z]{2,4}|[0-9]{1,3})(\]?)$"))
End Function
G
Guest
Hi
It's giving me error that "Regex" is not declared.....
It's giving me error that "Regex" is not declared.....
S
Sparky
Oops!!!
Either add
Imports System.Text.RegularExpressions
to the top of your class, or add System.Text.RegularExpressions. to the
front of regex
Either add
Imports System.Text.RegularExpressions
to the top of your class, or add System.Text.RegularExpressions. to the
front of regex
G
Guest
Thanks a lot!!!!!
It worked.......
It worked.......
?
_
Public Shared Function IsValidEmail(ByVal strIn As String) As Boolean
' Return true if strIn is in valid e-mail format.
Return Regex.IsMatch(strIn,
("^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA
-Z]{2,4}|[0-9]{1,3})(\]?)$"))
End Function
There are many valid email addresses that expression will not validate. The
only serious regex attempt I've seen to match an address, according to the
relevant RFC, was about an entire page long.
J
Jay
Your best bet is to verify the email address by using a powerful email
validation webservice. This will tell if the email address exists on the
remote mail server. I remember seeing one a while ago. I'll see if I can
find the address for you.
validation webservice. This will tell if the email address exists on the
remote mail server. I remember seeing one a while ago. I'll see if I can
find the address for you.
APublic Shared Function IsValidEmail(ByVal strIn As String) As Boolean
' Return true if strIn is in valid e-mail format.
Return Regex.IsMatch(strIn,
("^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-z-Z]{2,4}|[0-9]{1,3})(\]?)$"))
End Function
There are many valid email addresses that expression will not validate. The
only serious regex attempt I've seen to match an address, according to the
relevant RFC, was about an entire page long.
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