Compare two SortedList for equal in CSharp

using System; //w ww  .j  a va 2  s  . c  o m
using System.Collections; 
 
class MainClass { 
  public static void Main() { 
    SortedList sl = new SortedList(); 
     
    sl.Add("a", "A"); 
    sl.Add("b", "B"); 
    sl.Add("c", "C"); 
    sl.Add("d", "D"); 
 
    Console.WriteLine(sl.Equals(sl));
  }
}