Need help in String Concatenation in C#

To be honest, kumar, this isn't particularly difficult as string parsing goes. The main problem is to decide what the delimiters are for each number. Anyway, I'd suggest something like the following (.NET 2.0 or above assumed):

using System;

class Test
{
    static void Main()
    {
       string s = "||'001089||'  !:122003396!:  3240058971||'";
       s = s.Replace("||'","").Replace("!:","");
       string[] sa = s.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
       for(int i = 0; i < sa.Length; i++)
       {
          Console.WriteLine("Number{0}={1}", i+1, sa[i]);         
       }
       Console.ReadKey();
    }

}