System Globalization C# by API

using System;
using System.Globalization;
using System.Text;
public class NumParsingApp {
    public static void Main(string[] args) {
        string u = "AA -1,234,567.890  ";
        NumberFormatInfo ni = new NumberFormatInfo();
        ni.CurrencySymbol = "AA";
        double h = Double.Parse(u, NumberStyles.Any, ni);
        Console.WriteLine("h = {0:F}", h);
    }
}