using System;

using System.Dynamic;

​

public class Program

{

    public static void Main()

    {

        dynamic employee, manager;

​

        employee = new ExpandoObject();

        employee.Name = "John Smith";

        employee.Age = 33;

​

        manager = new ExpandoObject();

        manager.Name = "Allison Brown";

        manager.Age = 42;

        manager.TeamSize = 10;

​

        WritePerson(manager);

        WritePerson(employee);

    }

    public static void WritePerson(dynamic person)

    {

        Console.WriteLine("{0} is {1} years old.",

                          person.Name, person.Age);

        // The following statement causes an exception

        // if you pass the employee object.

        // Console.WriteLine("Manages {0} people", person.TeamSize);

    }

}

// This code example produces the following output:

// John Smith is 33 years old.

// Allison Brown is 42 years old.