How to validate email address in c#

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Hi,

How to validate email address using Regex in c#,Asp.Net?

For Ex? xyz@gmail.88 or xyz@gmail.c4

How to solve above example?

Thanks in advance?

Posted 14-Sep-14 23:09pm

24983

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Leena 206 · Answer 1 · 2014-09-18T18:59:00

Hi,

you can use ..

XML

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="regExEmail" runat="server" ControlToValidate="TextBox1" ErrorMessage="Please enter proper EMAIL id" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+
[-.]\w+)*"></asp:RegularExpressionValidator>

you have to select RegularExpressionValidator from validation list..

Prasad Avunoori · Answer 2 · 2014-09-14T23:21:00

Solution 2

http://www.aspdotnet-suresh.com/2013/08/regular-expression-for-email-validation-in-csharp-asp-net.html[^]

Posted 14-Sep-14 23:21pm

Prasad Avunoori

**Joezer BH** · Answer 3 · 2014-09-14T23:18:00

Solution 1

You can use good old Regex:

e.g. pattern: ^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$

See:
* Email Address Validation Using Regular Expression[^]
* using-a-regular-expression-to-validate-an-email-address[^]

See also previous answers:
* How Do I Verify Email Address[^]
* How to validate Email Address in Web Form in C#.NET[^]

Cheers,
C

Posted 14-Sep-14 23:18pm

Joezer BH

Updated 14-Sep-14 23:20pm

v3

Comments

24983 15-Sep-14 6:00am

Thanks ur Reply...But not checking xyz@gmail.88
Need to allowed @gmail.com/uk/net/info etc...

Joezer BH 15-Sep-14 6:06am

^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$
is just an example,
you can modify to support nubers at the end of the domain like this:
^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z0-9]{2,4}$