Monday, 19 March 2012

Email Validation using regular expression(javascript) in Asp.net

javascript in Asp.net 3.5 
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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>Untitled Page</title>
    <script type="text/javascript" language="javascript">
    function validate()
    {
        var email=document.getElementById("txtemailid").value;
        var phone=document.getElementById("txtphno").value;
        var regexp1=/^([a-zA-Z0-9]+[\_\-\.]?)+@([a-zA-Z0-9]+\.)+[a-zA-Z0-9]+$/;
        var regexp2=/^[0-9]+$/;
        var Restr = /^[a-z]([\.\_]?[a-z\d]+)*\@[a-z\d]+([\.\_\-][a-z\d]+)+$/;        
        if (!regexp1.test(email))
        {
            alert("Please Enter Valid E-mail Adress");
           return false;
        } 
        else
        {
            alert("Valid Email address");
           return true;
        }
        
        if(!regexp2.test(phone))
        {          
            alert("phone number must contain only numbers");
           return false; 
        }
        if(phone.length!=10)
        {
            alert("Phone number length should be 10");
            return false;     
        }

        return true;
    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <h2 style=" color:blue; font-style:normal ">  
           Email Javascript Validation
            <br /> in asp.net  
        </h2> 
    <div style="text-align:center">
    <table>
    <tr>
    <td><asp:Label ID="lblemailid" runat="server" Text="Email ID"></asp:Label></td>
    <td><asp:TextBox ID="txtemailid" runat="server"></asp:TextBox></td>
    </tr>
    <tr>
    <td><asp:Label ID="lblphno" runat="server" Text="Phone Number"></asp:Label></td>
    <td><asp:TextBox ID="txtphno" runat="server"></asp:TextBox></td>
    </tr>
    </table>
    </div>
     <div style="text-align:center; margin-right:78%;">
     <asp:Button ID="btnsubmit" Text="Submit"  runat="server"/>
    </div>
    </form>
</body>
</html>
Code Behind in C# 
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        btnsubmit.Attributes.Add("onclick", "return validate();");
    }
}

Screen Shots



No comments:

Post a Comment