using System;

using System.Collections;

public class Program

{

    public static void Main()

    {

        ArrayList list = new ArrayList();

            list.Add(new Ring { Price = 20 });

            list.Add(new Ring { Price = 15.7M });

            list.Add(new Ring { Price = 22.3M });

            list.Add(new Ring { Price = 33 });

            list.Add(new Ring { Price = 41 });

            list.Add(new Ring { Price = 8 });

​

            Ring obj = new Ring();

            list.Sort(obj);

​

            foreach (var x in list)

            {

                Console.WriteLine(((Ring)x).Price);

            }

    }

}

​

 public class Ring : IComparer

    {

        public decimal Price { get; set; }

​

        public int Compare(object x, object y)

        {

            return ((Ring)x).Price.CompareTo(((Ring)y).Price);

        }

    }