using System;

using System.Collections.Generic;

using System.Linq.Expressions;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("****************** C# Equivalent Output **************************\n\n");

        Employee e = new Employee()

        {

            Name = "John",

            BirthDate = DateTime.Now

        };

        Console.WriteLine("Name {0}, DOB {1}",e.Name, e.BirthDate);

        Console.WriteLine("\n\n***************** Expression Tree Output **************************\n\n");

​

        Expression testExpr = Expression.MemberInit(

            Expression.New(typeof(Employee)),

            new List<MemberBinding>() {

                Expression.Bind(typeof(Employee).GetMember("Name")[0], Expression.Constant("John")),

                Expression.Bind(typeof(Employee).GetMember("BirthDate")[0], Expression.Constant(DateTime.Now))

            }

        );

​

        var emp = Expression.Lambda<Func<Employee>>(testExpr).Compile()();

        Console.WriteLine("Name {0}, DOB {1}",emp.Name, emp.BirthDate);

    }

}

​

public class Employee

{

    public string Name { get; set; }

    public DateTime BirthDate { get; set; }

}

​