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Microsoft Visual Studio Solution File, Format Version 12.00

# Visual Studio Express 2013 for Web

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using System.Web.Routing;

namespace LinqQueries

{

    public class RouteConfig

    {

        public static void RegisterRoutes(RouteCollection routes)

        {

            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(

                name: "Default",

                url: "{controller}/{action}/{id}",

                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }

            );

        }

    }

}

using System;

using System.Collections.Generic;

using System.Data;

using System.Data.Entity;

using System.Linq;

using System.Net;

using System.Web;

using System.Web.Mvc;

using LinqQueries.Models;

namespace LinqQueries.Controllers

{

    public class HomeController : Controller

    {

        private NorthwindEntities db = new NorthwindEntities();

        public ActionResult Index()

        {

            // basic select with where clause

            //var products = db.Products.Where(p => p.UnitPrice > 50M).Select(p => p);

            // order by

            //var products = db.Products.OrderByDescending(p => p.UnitPrice);

            // take

            var products = db.Products.OrderByDescending(p => p.UnitPrice).Take(5);

            return View(products.ToList());

        }

        public ActionResult Categories()

        {

            // select distinct

            var categories = db.Products.Select(p => p.CategoryID).Distinct();

            // count

            ViewBag.CategoryCount = db.Products.Select(p => p.CategoryID).Distinct().Count();

            return View(categories.ToList());

        }

        public ActionResult Orders()

        {

            // join

            var orders = from c in db.Customers

                         join o in db.Orders

                         on c.CustomerID equals o.CustomerID

                         where o.Freight > 25M

                         orderby o.Freight descending

                         select new JoinedOrder()

                         {

                             OrderID = o.OrderID,

                             CustomerID = o.CustomerID,

                             CompanyName = c.CompanyName,

                             ContactName = c.ContactName,

                             Freight = o.Freight,

                             ShipVia = o.ShipVia

                         };

            return View(orders.ToList());

        }

        protected override void Dispose(bool disposing)

        {

            if (disposing)

            {

                db.Dispose();

            }

            base.Dispose(disposing);

        }

    }

}

<%@ Application Codebehind="Global.asax.cs" Inherits="LinqQueries.MvcApplication" Language="C#" %>