How to use Linq in ASP.NET App refer my below post
http://www.dotnetissues.com/2011/02/select-query-linq-to-sql-example.html
To fetch the data from XML , below is the code using LINQ
Default6.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default6.aspx.cs" Inherits="Default6" %>
<!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>
<asp:GridView ID="GridView1" runat="server"/>
</div>
</form>
</body>
</html>
Default6.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
using System.Xml.Linq;
public partial class Default6 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
DataClassesDataContext db = new DataClassesDataContext();
var results = from o in XElement .Load (MapPath ("XMLfile.xml")).Elements ("student")
select o.Value;
GridView1.DataSource = results;
GridView1.DataBind();
}
}
XMLfile.xml
<?xml version="1.0" encoding="utf-8" ?>
<students>
<student>
<name> ABC</name>
<Address> ABC Address</Address>
<Email> a@a.com </Email>
</student>
<student>
<name> XYZ </name>
<Address>XYZ Address </Address>
<Email> x@x.com </Email>
</student>
<student>
<name> LMN</name>
<Address> LMN address</Address>
<Email> l@l.com</Email>
</student>
<student>
<name> PQR </name>
<Address>PQR address </Address>
<Email> p@p.com </Email>
</student>
</students>
Below is the o/p
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