Get the number of elements in the SortedSet in CSharp

/*from   www.j a v  a  2s .  c  o m*/
using System;
using System.Collections.Generic;

public class MainClass{
  public static void Main(String[] argv){  
    SortedSet<int> evenNumbers = new SortedSet<int>();
    for (int i = 0; i < 5; i++)
    {
        evenNumbers.Add(i * 2);
    }
    Console.WriteLine(evenNumbers.Count);
  }
}