Format double to currency with Standard format C in CSharp

using System;// ww  w . j a v  a2s  .  c  om
using System.Globalization;
public class Example
{
   public static void Main()
   {
        double value = 123456.123456;
        string specifier;
        CultureInfo culture;
        
        specifier = "C";
        culture = CultureInfo.CreateSpecificCulture("en-US");
        Console.WriteLine(value.ToString(specifier, culture));
        culture = CultureInfo.CreateSpecificCulture("en-GB");
        Console.WriteLine(value.ToString(specifier, culture));
   }
}