Get or set the total number of elements the internal data structure can hold without resizing in CSharp

using System;/*from   ww w  .j  av a 2  s  .  co  m*/
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        List<string> letters = new List<string>();

        Console.WriteLine(letters.Capacity);

        letters.Add("A");
        letters.Add("B");
        letters.Add("C");
        letters.Add("D");
        letters.Add("E");

        Console.WriteLine(letters.Capacity);
        Console.WriteLine(letters.Count);

    }
}