Format double value in exponential with Exponential ("E") Format Specifier in CSharp

using System;// w  ww .  ja  va  2  s  . com
using System.Globalization;
public class MainClass {     
   static void Main()
   {
        double value = 12345.6789;
        Console.WriteLine(value.ToString("E", CultureInfo.InvariantCulture));
        // Displays 1.234568E+004
        
        Console.WriteLine(value.ToString("E10", CultureInfo.InvariantCulture));
        // Displays 1.2345678900E+004
        
        Console.WriteLine(value.ToString("e4", CultureInfo.InvariantCulture));
        // Displays 1.2346e+004
        
        Console.WriteLine(value.ToString("E", 
                          CultureInfo.CreateSpecificCulture("fr-FR")));
        // Displays 1,234568E+004
   }
}