How to validate case-sensitive email using regular expression using asp.net c#
In this article, I will show you how to validate
case sensitive email using asp.net validator control. I have used regular
expression validator to make it. I have just write the below expression to
validate the textbox.
ValidationExpression="^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$">
Design:-
Source code:-
<%@
Page Language="C#" AutoEventWireup="true" CodeFile="emailvalidation.aspx.cs"
Inherits="emailvalidation" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<fieldset style="width: 500px">
<legend><strong>validate
case-sensitive email address</strong></legend>
<br />
<strong>Email
Address</strong>
<asp:TextBox ID="txtemail" runat="server" Width="200px"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ControlToValidate="txtemail" Display="Dynamic"
ErrorMessage="Please enter the valid email" ForeColor="Red"
ValidationExpression="^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$"></asp:RegularExpressionValidator>
</fieldset>
</div>
</form>
</body>
</html>
Output:-
How to validate case-sensitive email using regular expression using asp.net c#
Reviewed by NEERAJ SRIVASTAVA
on
7:55:00 PM
Rating:
Reviewed by NEERAJ SRIVASTAVA
on
7:55:00 PM
Rating:
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