Get an enumerator that iterates through the SortedSet in CSharp

using System;//from  ww  w  .  jav a2  s  .c o  m
using System.Collections;
using System.Collections.Generic;
using System.IO;


class Program
{
    static void Main(string[] args)
    {
        SortedSet<string> set1 = new SortedSet<string>();
        set1.Add("a");
        set1.Add("b");
        set1.Add("d");
        set1.Add("d");
        

        IEnumerator e = set1.GetEnumerator();
        while (e.MoveNext())
        {
            Object obj = e.Current;
            Console.WriteLine(obj);
        }

    }
}