using System;
using System.Globalization;
public class Example
{
public static void Main()
{
float value = 123456.123456F;
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));
}
}
//$123,456.10