How to protect the to validate email address to gmail.com using regular expression in asp.net
In this article, we will protect to email address
from gmail .com. in this we can enter all email address instead of gmail.com. In
this example, we are used asp.net validation control to validate this. We have
just use the regular expression validator , we can just write this below code
to validate :-
ValidationExpression="^([\w-\.]+@(?!gmail.com)([\w-]+\.)+[\w-]{2,4})?$">
Design:-
Source
code:-
<%@
Page Language="C#" AutoEventWireup="true" CodeFile="emailvalidation.aspx.cs"
Inherits="emailvalidation" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<fieldset style="width: 600px">
<legend><strong>Protect
email address for gmail.com </strong></legend>
<br />
<strong>Email
Address</strong>
<asp:TextBox ID="txtemail" runat="server" Width="200px"></asp:TextBox>
<asp:RegularExpressionValidator ID="REVemail" runat="server"
ControlToValidate="txtemail" Display="Dynamic"
ErrorMessage="Please enter the valid email" ForeColor="Red"
ValidationExpression="^([\w-\.]+@(?!gmail.com)([\w-]+\.)+[\w-]{2,4})?$"></asp:RegularExpressionValidator>
</fieldset>
</div>
</form>
</body>
</html>
Out-Put:-
How to protect the to validate email address to gmail.com using regular expression in asp.net
Reviewed by NEERAJ SRIVASTAVA
on
9:39:00 AM
Rating:
Reviewed by NEERAJ SRIVASTAVA
on
9:39:00 AM
Rating:
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