email address validation

[erictheking1]

I was wondering if anyone could give me the code for email validation on a textbox named, txtEmail.

I have used a validator but there is a problem with IIS7 and this so i need to code it behind the text box. I would like to inform the user that they have not entered a valid email address via a message box and not allow them to proceed until it is correct..

Can anyone help me with this??

thanks

Eric

[kvprajapati]

Welcome erictheking1.

You should post your question in ASP.NET forum. Regarding to your problem you must have use javascript with RegExp (regular expression) pattern or RegularExpression Validator control.

[serkan sendur]

why dont you use built-in validators in the toolbox?

[serkan sendur]

Adatapost is right, that is an Asp.Net question.

[erictheking1]

Im sorry, maybe i didnt make myself clear. This is a c# question. The regular expression validators and every other validators throw an web reference error when i host the page. I have all ready researched this problem and microsoft are currently trying to find a solution. It has to do with IIS 7. (asp.net problem)

The question im asking is can anyone give me c# code that i can put behind a button so that the textbox must be in email address format before the user can proceed. An if statement or something equivalant.

Thanks

Eric

[serkan sendur]

i got your problem, you are looking for a regular expression to validate email
http://www.cambiaresearch.com/c4/bf974b23-484b-41c3-b331-0bd8121d5177/Parsing-Email-Addresses-with-Regular-Expressions.aspx

[sknake]

You want to perform the validation server side in c# code behind right? Here is how I do it:

public static bool IsValidEmailAddr(string email)
    {
      try
      {
        System.Net.Mail.MailAddress addr = new System.Net.Mail.MailAddress(email);
      }
      catch
      {
        return false;
      }
      return true;
    }