using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Collections.ObjectModel;
//csc List_BionarySearch1.cs
namespace ConsoleApplication1
{
    


    class Program
    {
        static void Main(string[] args)
        {
            
            List<string> eList = new List<string>(); 
            eList.Add("A");  eList.Add("B");
            eList.Add("C");  eList.Add("D");
            eList.Add("E");
            readT(eList);
            IList<string> e1 = eList.AsReadOnly(); 
            Console.WriteLine("-printing- List<string> eList-----");
            int index = eList.BinarySearch("M");
            if (index < 0) { eList.Insert(~index, "M"); }
            
             try {
                 Console.WriteLine("erorr occurs");
                e1[2] = "Z";
                  }
             catch
             {
                 Console.WriteLine("-ReadOnly");
             }
            foreach (string val in e1)
            {
                Console.WriteLine("IList<type> Value:" + val.ToString());
            }
           
           // readT(eList, "  ");
            //
            Console.ReadLine();
        }
       
             
        static void readT(IList<string> list)
        {
            //notice that the list is passed an IList and hence can handle both types of lists
            //Use IEnumerable
            foreach (string val in list)
            {
                Console.WriteLine("IList<type> Value:" + val.ToString());
            }
        }
    }
}