public static string ToTimerString(this int milliseconds)
{
TimeSpan ts = new TimeSpan(0, 0, 0, 0, milliseconds);
return String.Format("{0}:{1}:{2}.{3}", ts.Hours.ToString("0"), ts.Minutes.ToString("00"), ts.Seconds.ToString("00"), ts.Milliseconds.ToString().Substring(0, 1));
}