Email Id Address Validation
Enter Email Id Address in TextBox InValid Id Display Popup Error Message Using Asp.Net C#.
Download Coding
Download
DEMO
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C# CODING
Next - Double Click TextBoxes - Add NameSpaces - Regex Coding For Email Validation
Enter Email Id Address in TextBox InValid Id Display Popup Error Message Using Asp.Net C#.
Download Coding
Download
DEMO
.gif)
HTML CODING
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtEamilId" runat="server" AutoPostBack="True" OnTextChanged="TextBox1_TextChanged"></asp:TextBox>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Windows.Forms;
using System.Text.RegularExpressions;
public partial class Battery : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void TextBox1_TextChanged(object sender, EventArgs e)
{
Regex regex = new Regex(@"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$");
Match match = regex.Match(txtEamilId.Text);
if (!match.Success)
{
MessageBox.Show("Invalid
EmailId", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else {
MessageBox.Show("Valid
EmailId", "Valid", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
First Add New Form - Right Click- Solution Explorer -
Add - Add Reference
Next - Add - Systems.Windows.Form - OK
Next - Add TextBox From Toolbox - Id Change - AutoPostBack=True
Next - Double Click TextBoxes - Add NameSpaces - Regex Coding For Email Validation
Next - Run[F5] - Verify Email ID
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