[DataContract]
    public class Book
    {
        [DataMember]
        public int Code { get; set; }

        [DataMember]
        public string Title { get; set; }
    }

using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.ServiceModel;

namespace WcfLambdaExpression
{
    [ServiceContract]
    public interface IBookService
    {
        [OperationContract]
        IEnumerable<Book> GetByExpression( Expression<Func<Book, bool>> expression );
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;

namespace WcfLambdaExpression
{    
    public class BookService : IBookService
    {        
        public BookService()
        {
            ListOfBook = new List<Book>();
        }

        public List<Book> ListOfBook 
        {
            get;
            private set;
        }

        public IEnumerable<Book> GetByExpression( Expression<Func<Book, bool>> expression )
        {
            ListOfBook.AddRange( new Book[] 
            {
                new Book(){Code = 1 , Title = "Book1"},
                new Book(){Code = 2 , Title = "Book2"},
                new Book(){Code = 3 , Title = "Book3"},
                new Book(){Code = 4 , Title = "Book4"},
                new Book(){Code = 5 , Title = "Book5"},
            } );

            return ListOfBook.AsQueryable().Where( expression );
        }       
    }
}

Type 'System.Linq.Expressions.Expression`1[System.Func`2[WcfLambdaExpression.Book,System.Boolean]]' cannot be serialized. 
Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute.  
If the type is a collection, consider marking it with the CollectionDataContractAttribute.  
See the Microsoft .NET Framework documentation for other supported types

[ServiceContract]
    public interface IBookService
    {
        [OperationContract]
        IEnumerable<Book> GetByExpression( XElement expression );
    }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Xml.Linq;

namespace WcfLambdaExpression
{
    public class BookService : IBookService
    {
        public BookService()
        {
            ListOfBook = new List<Book>();
        }

        public List<Book> ListOfBook
        {
            get;
            private set;
        }

        public IEnumerable<Book> GetByExpression( XElement expression )
        {
            ListOfBook.AddRange( new Book[] 
            {
                new Book(){Code = 1 , Title = "Book1"},
                new Book(){Code = 2 , Title = "Book2"},
                new Book(){Code = 3 , Title = "Book3"},
                new Book(){Code = 4 , Title = "Book4"},
                new Book(){Code = 5 , Title = "Book5"},
            } );

             Common.ExpressionSerializer serializer = new Common.ExpressionSerializer();

            return ListOfBook.AsQueryable().Where( serializer.Deserialize( expression ) as Expression<Func<Book, bool>> );
        }
    }

using System.Collections.Generic;

namespace sample
{
   public class MyList
   {
       public static List<int> GetListOfIntItems(int numberOfItems)
       {
           List<int> res = new List<int>();

           for (int i = 0; i < numberOfItems; i++)
               res.Add(i);

           return res;
       }
   }

}

using NUnit.Framework;
using NUnit.Framework.SyntaxHelpers;

   [TestFixture]
   public class TestClass

       [Test]
       public void TestGetListOfIntItems()

       [Test]
       public void TestGetListOfIntItems()
       {
           const int count = 5;
           List<int> items = sample.MyList.GetListOfIntItems(count);
           Assert.That(items.Count,Is.EqualTo(5));
       }

---------------------------
Assembly Not Loaded
---------------------------
System.ApplicationException : Unable to load TestLibrary because it is not located under
the AppBase
----> System.IO.FileNotFoundException : Could not load file or assembly
'TestLibrary' or one of its dependencies. The system cannot find the file specified.
For further information, use the Exception Details menu item.

void SetA()
{
  if(a == b)
  {
     foreach(C c in cs)
     {
        if(c == d)
        {
           a = c;
        }
     }
  }
}

void SetA()
{
   if(a != b)
       return;

  foreach(C c in cs)
       a = GetValueOfA(c);
}

TypeOfA GetValueOfA(C c)
{
  if(c == d)
      return c;
  
  return a;
}

if (foo) {
if (bar) {
  // do something
}
}

if (foo && bar) {
// do something
}

function findShape(flags, point, attribute, list) {
   if(!findShapePoints(flags, point, attribute)) {
       if(!doFindShapePoints(flags, point, attribute)) {
           if(!findInShape(flags, point, attribute)) {
               if(!findFromGuide(flags,point) {
                   if(list.count() > 0 && flags == 1) {
                         doSomething();
                   }
               }
           }
      }
   } 
}

function findShape(flags, point, attribute, list) {
   if(findShapePoints(flags, point, attribute)) {
       return;
   }

   if(doFindShapePoints(flags, point, attribute)) {
       return;
   }

   if(findInShape(flags, point, attribute)) {
       return;
   }

   if(findFromGuide(flags,point) {
       return;
   }

   if (!(list.count() > 0 && flags == 1)) {
       return;
   }

   doSomething();
}

void UpdateBankAccountTransactionListWithYesterdaysTransactions()
//or?
void UpdateTransactions()

//function thisReallyHandyFunction() {
//      someMagic();
//      someMoreMagic();
//      magicNumber = evenMoreMagic();
//      return magicNumber;
//}

// Get the student's id
thisId = student.getId();

// TODO: This is too bad. FIX IT!

if (foo>bar) {
return true;
} else {
return false;
}

return foo>bar;

Something something = new Something(foo);
return something;

return new Something(foo);

function getSomeAngle() {
   // Some code here then
   radAngle1 = Math.atan(slope(center, point1));
   radAngle2 = Math.atan(slope(center, point2));
   firstAngle = getStartAngle(radAngle1, point1, center);
   secondAngle = getStartAngle(radAngle2, point2, center);
   radAngle1 = degreesToRadians(firstAngle);
   radAngle2 = degreesToRadians(secondAngle);
   baseRadius = distance(point, center);
   radius = baseRadius + (lines * y);
   p1["x"] = roundValue(radius * Math.cos(radAngle1) + center["x"]);
   p1["y"] = roundValue(radius * Math.sin(radAngle1) + center["y"]);
   pt2["x"] = roundValue(radius * Math.cos(radAngle2) + center["y"]);
   pt2["y"] = roundValue(radius * Math.sin(radAngle2) + center["y");
   // Now some more code
}

function getSomeAngle() {
   // Some code here then
   radAngle1 = Math.atan(slope(center, point1));
   radAngle2 = Math.atan(slope(center, point2));

   firstAngle = getStartAngle(radAngle1, point1, center);
   secondAngle = getStartAngle(radAngle2, point2, center);

   radAngle1 = degreesToRadians(firstAngle);
   radAngle2 = degreesToRadians(secondAngle);

   baseRadius = distance(point, center);
   radius = baseRadius + (lines * y);

   p1["x"] = roundValue(radius * Math.cos(radAngle1) + center["x"]);
   p1["y"] = roundValue(radius * Math.sin(radAngle1) + center["y"]);

   pt2["x"] = roundValue(radius * Math.cos(radAngle2) + center["y"]);
   pt2["y"] = roundValue(radius * Math.sin(radAngle2) + center["y");
   // Now some more code

}

if(mode == 3){ ... }
else if(mode == 4) { ... }

if(mode == MyEnum.ShowAllUsers) { ... }
else if(mode == MyEnum.ShowOnlyActiveUsers) { ... }

using System.Web.Mvc;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewBag.Country = "Iran";
            return View();
        }
    }
}

@{
    ViewBag.Title = "Index";
}
<h2>
    Index</h2>
<p>
    Country : @ViewBag.Country
</p>

namespace MvcApplication1.Models
{
    public class Employee
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Email { get; set; }
    }
}

using System.Web.Mvc;
using MvcApplication1.Models;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewBag.Country = "Iran";

            var employee = new Employee
            {
                 Email = "name@site.com",
                 FirstName = "Vahid",
                 LastName = "N."
            };

            return View(employee);
        }
    }
}

ViewResult View(Object model)
ViewResult View(string viewName, Object model)
ViewResult View(string viewName, string masterName, Object model)

@{
    ViewBag.Title = "Index";
}
<h2>
    Index</h2>
<div>
    Country: @ViewBag.Country <‪br />
    FirstName: @Model.FirstName
</div>

@model MvcApplication1.Models.Employee
@{
    ViewBag.Title = "Index";
}
<h2>
    Index</h2>
<div>
    Country: @ViewBag.Country
    <‪br />
    FirstName: @Model.FirstName
</div>

using System.Collections.Generic;

namespace MvcApplication1.Models
{
    public class Employees 
    {
        public IList<Employee> CreateEmployees()
        {
            return new[]
                {
                    new Employee { Email = "name1@site.com", FirstName = "name1", LastName = "LastName1" },
                    new Employee { Email = "name2@site.com", FirstName = "name2", LastName = "LastName2" },
                    new Employee { Email = "name3@site.com", FirstName = "name3", LastName = "LastName3" }
                };
        }
    }
}

public ActionResult List()
{
    var employeesList = new Employees().CreateEmployees();
    return View(employeesList);
}

public ViewDataDictionary ViewData { get; set; }

using System;
using System.Web.Mvc;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewData["DateTime"] = "<‪br/>" + DateTime.Now;
            return View();
        }
    }
}

@{
    ViewBag.Title = "Index";
}
<h2>
    Index</h2>
<div>
    DateTime: @ViewData["DateTime"]
</div>

@Html.Raw(myString)

<div>@MvcHtmlString.Create("<h1>HTML</h1>")</div>

public TempDataDictionary TempData { get; set; }

using System;
using System.Web.Mvc;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult InsertData(string name)
        {
            // Check for input errors.
            if (string.IsNullOrWhiteSpace(name))
            {
                TempData["error"] = "name is required.";
                return RedirectToAction("ShowError");
            }
            // No errors
            // ...
            return View();
        }

        public ActionResult ShowError()
        {
            var error = TempData["error"] as string;
            if (!string.IsNullOrWhiteSpace(error))
            {
                ViewBag.Error = error;
            }
            return View();
        }
    }
}

@{
    ViewBag.Title = "ShowError";
}

<h2>Error</h2>

@ViewBag.Error

'MvcApplication1.Models.Employee' does not contain a definition for 'FirstName1' 
and no extension method 'FirstName1' accepting a first argument of type 'MvcApplication1.Models.Employee'
could be found (are you missing a using directive or an assembly reference?)
d:\Prog\MvcApplication1\MvcApplication1\Views\Home\Index.cshtml 10 MvcApplication1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        //
        // GET: /Home/
        public ActionResult Index()
        {
            return View();
        }
    }
}

public abstract class ControllerBase : IController
public abstract class Controller : ControllerBase

The view 'Index' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/Home/Index.aspx
~/Views/Home/Index.ascx
~/Views/Shared/Index.aspx
~/Views/Shared/Index.ascx
~/Views/Home/Index.cshtml
~/Views/Home/Index.vbhtml
~/Views/Shared/Index.cshtml
~/Views/Shared/Index.vbhtml

@{
    ViewBag.Title = "Index";
}
<h2>Index</h2>

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    routes.MapRoute(
                "Default", // Route name
                "{controller}/{action}/{id}", // URL with parameters
                new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
            );
}

http://hostname/home/about

http://localhost/
http://localhost/home
http://localhost/home/about
http://localhost/process/list

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.MapRoute(
                "Process", // Route name
                "Process/{action}/{id}", // URL with parameters
                new { controller = "Process", action = "List", id = UrlParameter.Optional } // Parameter defaults
            );

    routes.MapRoute(
                "Default", // Route name
                "{controller}/{action}/{id}", // URL with parameters
                new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
            );
}

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