How to validate the email validation using REGULAR EXPRESSION

reqular expession one of the validate control for asp.net. its used for email validate,pinnumbervalidate, url validtate, special symbol validate..etc..
example for email validate
<asp:RegularExpressionValidator ID="revEmail" runat="server"
ErrorMessage="Please enter in email format." ControlToValidate="txtEmail"
SetFocusOnError="true"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
ValidationGroup="A" ForeColor="" CssClass="Validation-Msg" Display="Dynamic"></asp:RegularExpressionValidator>

chandru

Graha, if this helps please login to Mark As Answer. | Alert Moderator

Hi,

The RegularExpressionValidator control is used to ensure that an input value matches a specified pattern.

Syntax for Regular Expression Validator

<asp:TextBox ID="txtEmailID" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="revEmailID" runat="server"
ControlToValidate="txtEmailID"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">*</asp:RegularExpressionValidator>

Regards,
Web Designing Company[http://www.kapsystem.com/LINK]

Graha, if this helps please login to Mark As Answer. | Alert Moderator

thanks...

Graha, if this helps please login to Mark As Answer. | Alert Moderator

Try this

private bool IsValidEmail(string email)

{

            string regexPattern = @"^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$";

            return new Regex(regexPattern, RegexOptions.IgnoreCase).IsMatch(email);

}

Hope this helps.

Thanks

Best Regards,
Niladri Biswas

Graha, if this helps please login to Mark As Answer. | Alert Moderator

you can use client side validations or server side validations for regular expressions...its better to use client side validations..check out this link
it may helps you

http://www.developerscode.com/2011/02/client-side-validations-using.html

Tanisha Sayyad
.Net and Android Developer
INDIA(Andhra Pradesh)

Graha, if this helps please login to Mark As Answer. | Alert Moderator

Hi,

Try this. it will hlp you..

 <asp:TextBox ID="TextBox1" runat="server" ></asp:TextBox>

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="Enter valid Email Id"

ControlToValidate="TextBox1" SetFocusOnError="true" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" > </asp:RegularExpressionValidator>

ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

Graha, if this helps please login to Mark As Answer. | Alert Moderator

Hi ,
you can use the below expression to validate the email
var emailFormat = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
you can use it as an Regualar Expression in javascript too

Thanks
http://www.alacraft.com.au/

Graha, if this helps please login to Mark As Answer. | Alert Moderator

I found this library for verifying email addresses in .net:
http://www.kellermansoftware.com/p-37-net-email-validation.aspx

Graha, if this helps please login to Mark As Answer. | Alert Moderator

hi

try this

<asp:TextBox ID="TxtEmail" runat ="server" ></asp:TextBox>

<asp:RegularExpressionValidator ID="Req" runat ="server"
ControlToValidate ="TxtEmail" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
></asp:RegularExpressionValidator>

Mark as Answer if its helpful to you

Kumaraspcode2009@gmail.com

Graha, if this helps please login to Mark As Answer. | Alert Moderator

In any programming language, you can validate your email by using the regular expression. You can also use the Roadrunner Email. For instant support related to the Roadrunner Email please visit http://www.roadrunnersupport247.com/forgot-roadrunner-password/ for the best solution.

Graha, if this helps please login to Mark As Answer. | Alert Moderator