private static Brightness ParseBrightness(string str)
{
var match = Regex.Match(str, @"^(?<Percentage>\d{1,3})%$");
if (match.Success)
{
return(Brightness.FromPercentage(Int32.Parse(match.Groups["Percentage"].Value)));
}
int value;
if (Int32.TryParse(str, out value))
{
return(Brightness.FromValue(value));
}
throw new FormatException("Unrecognized brightness value.");
}