Anonymous Methods

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Net3p5Features.Expression
{
    public class AnonymouseMethodTest : IProgramTest
    {
        public string Name
        {
            get { return "Anonymouse Sample"; }
        }

        public string Description
        {
            get { return Name; }
        }

        public void Run()
        {
            var car = new Car
            {
                Brand = "BMW",
                Model = "92",
                OnRunning =delegate(object sender,EventArgs e)
                    {
                        Console.WriteLine("sender :{0} called from Anynomouse method", sender);
                        var s = "Hello world";
                    }
            };
            car.Run();

            var car2 = new Car
                          {
                              Brand = "BMW",
                              Model = "92",
                              OnRan =
                                  (sender, e) =>
                                  {
                                      Console.WriteLine("sender :{0} called from Anynomouse method", sender);
                                      var s = "Hello world";
                                  }
                          };
            car2.Run();
        }
    }

    public class Car
    {
        public string Brand { get; set; }
        public string Model { get; set; }
        public  EventHandler OnRunning;
        public  EventHandler OnRan;

        public void Run()
        {
            if (OnRunning != null) OnRunning(this, EventArgs.Empty);
            Console.WriteLine("Model:{0}, Brand:{1}", Model, Brand);
            if (OnRan != null) OnRan(this, EventArgs.Empty);

        }

    }


}

Generics

public delegate bool Filter(T dinfo); protected void TestExtensionWithLambda()
       {

          Console.WriteLine("Enter the Min number of nested files:");

          var noS = Console.ReadLine();



          //IEnumerable directories = GetDirectories().OrderBy(d=>d.GetDirectories().Length);

          IEnumerable<DirectoryInfo> directories = from d in GetDirectories()

                                                   orderby d.GetFiles().Length descending

                                                   select d;





          var result = directories.Filter(d => d.GetFiles().Length >= int.Parse(noS));

          Console.WriteLine("Original Collection={0}", directories.Count());

          foreach (var dInfo in result)

          {

              Console.WriteLine("Name={0}, Dirctory Count={1}", dInfo.Name, dInfo.GetFiles().Length);



          }

      }
protected static IEnumerable<DirectoryInfo> GetDirectories()

       {

          var dInfo = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));

          var dInfos = dInfo.GetDirectories("*", SearchOption.AllDirectories);

          var list = from d in dInfos

                     select d;

          return list;

      }

OOP Javascript

//Simple OOP Sample

// in this Sample
// in this Sample I will Create objects like C# objects
// Hint all this code support Intellisense
function RunSampleA() {
    var Car = new Object();
    var Bus = new Object();
    Bus.Car = Car;
    Car.Name = "BMW";
    Car.Width = 20;
    Car.Size = { Width: 30, Height: 50 }; // like JSON
    Car.Height = 50;
    Car.Play = function () {
        return this.Name + '; ' + this.Width.toString() + '; ' + this.Height.toString();
    }
    Car.Play2 = function () {
        return this.Name + '; ' + this.Size.Width + '; ' + this.Size.Height;
    }
    alert(Car.Play());
    alert(Car.Play2());
    alert(Bus.Car.Play());
}

// Initialising and creating nested objects.

function RunSampleB() {
    var ServiceManager = { CarService: 'My Car Service', ComputerService: 'My Computer Service',
        FoodService: { DesertServices: "my desert service", Dinners: "Dinner Foods", "DoService": function (food) {
            alert('Cooking ' + food);
        }
        }
    };

    alert(ServiceManager.CarService);
    alert(ServiceManager.FoodService.DesertServices);
    alert(ServiceManager.FoodService.Dinners);
    alert(ServiceManager.FoodService.DoService('Yamme rice'));


}

//Object Model Sample with call back methods
function RunSampleC() {
    var ServiceManager = new Object();
    ServiceManager.CarService = 'My Car Service';
    ServiceManager.ComputerService = 'My Computer Service';
    ServiceManager.FoodService = new Object();
    ServiceManager.FoodService.Dinners = "My Dinner";
    ServiceManager.FoodService.DesertServices = "My Desert service";
    ServiceManager.FoodService.DoService = function (food) {
        alert('Cooking ' + food);
        return 1;
    }

    ServiceManager.FoodService.DoCallbackService = function (food, cb) {
        cb(food);
        return 1;
    }
    alert(ServiceManager.CarService);
    alert(ServiceManager.FoodService.DesertServices);
    alert(ServiceManager.FoodService.Dinners);
    // alert(ServiceManager.FoodService.DoService('Yamme rice'));
    alert(ServiceManager.FoodService.DoCallbackService('rice', callBack));


}
function callBack(data) {
    alert(data + ' was called from call back');


}



// Creatig objects that can be initialised with constructor
function RunSampleD() {

    var Dog = function (id, name, age, color) {
        this.Color = color;
        this.Age = age;
        this.ID = id;
        this.Name = name;
        this.toString = function () {
            return this.ID + '; ' + this.Name + '; ' + this.Age + '; ' + this.Color;
        }
        this.Bark = function () { alert('Hoow, Hoow'); }
    }

    var buddy = new Dog(1, 'Buddy', 3, 'White');

    alert(buddy);
    buddy.Bark();

}

ASP.NET 4 & MVC2

Hint replace all $ by %

if the code will be run on the server but not renders

use this format

<$ sever code block ; $>

if the code will render output

use

<$ =sever code block (without;) $>

for encoded Html

<$ :sever code block (without;) $>

Force.com

Force.com code snippet.