Check if the StringCollection is read-only in CSharp

using System;/*from   w ww  .  ja v a2  s. c o  m*/
using System.Collections;
using System.Collections.Specialized;

public class SamplesStringCollection  {

   public static void Main()  {
      StringCollection myCol = new StringCollection();
      String[] myArr = new String[] { "A", "B", "C", "java2s.com"};
      myCol.AddRange( myArr );


      Console.WriteLine( myCol.IsReadOnly);
   }
}