// Good example of list https://msdn.microsoft.com/en-us/library/6sh2ey19(v=vs.110).aspx

​

// http://www.c-sharpcorner.com/UploadFile/mahesh/create-a-list-of-objects-in-C-Sharp/

​

using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        //Console.WriteLine("Hello World");

        List<int> myNums = new List<int>();

        myNums.Add(10);

        myNums.Add(20);

        myNums.Add(30);

        IEnumerable<int> age_IEnumerable = (IEnumerable<int>)myNums;

        foreach (int myNum in age_IEnumerable)

        {

            Console.WriteLine(myNum);

        }

    }

}

​