using System;

using System.Linq;

using System.Text.RegularExpressions;

​

//Creted By M. Hassan

//Last Update: Aug 1,2016

​

public class Program

{

     public static void Main()

    {

        double number = 1234.56;

​

        Console.WriteLine("Double: {0}", number);

        Console.WriteLine("Hex:                  {0}", DoubleToHex(number));

        Console.WriteLine("Hex in Reverse order: {0}", DoubleToHex(number, true));

        Console.WriteLine("Hex in Reverse order separate by 2 digits: {0}", DoubleToHex(number, true, 2));

        Console.WriteLine("Hex in Reverse order separate by 4 digits: {0}", DoubleToHex(number, true, 4));

​

        //For example, 1234.56 . the hex equivilent "40934A3D70A3D70A

    }

​

    //dashseparator 0 /2/4

    static string DoubleToHex(double d, bool reverse = false, int dashSeparator = 0)

    {

        byte[] bytes = BitConverter.GetBytes(d);

        if (reverse) bytes = bytes.Reverse().ToArray();

        var hex = BitConverter.ToString(bytes);

        if (dashSeparator == 2) return hex;

        if (dashSeparator == 4)

        {

            hex = hex.Replace("-", "");

            hex = Regex.Replace(hex, ".{4}", "$0-").TrimEnd('-');

            return hex;

        }

        return hex.Replace("-", "");

​

​

    }

}