Convert LINQ Query to DataTable

Introduction

This article shows how a LINQ query result can be converted to a datatable and later how the datatable can be consumed depending on the requirements.

Create ASP.Net web application

WebForm1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Copy_LINQ_to_DataTable.WebForm1" %>
<!DOCTYPE html>
<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"></asp:GridView>
</div>
</form>
</body>
</html>

WebForm1.aspx.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Copy_LINQ_to_DataTable
{
public partial class WebForm1 : System.Web.UI.Page
{
SchoolManagementEntities objSchoolManagementEntities = new SchoolManagementEntities();
DataTable dt = new DataTable();
protected void Page_Load(object sender, EventArgs e)
{
var query = from r in objSchoolManagementEntities.Students select r;
dt.Columns.Add("FirstName", typeof(String));
dt.Columns.Add("LastName", typeof(String));
foreach (var p in query)
{
DataRow dr = dt.NewRow();
dr["FirstName"] = p.FirstName;
dr["LastName"] = p.LastName;
dt.Rows.Add(dr);
}
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
}