using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        string sAmount = "1,921.11";

        string temp = string.Empty;

        double Amount;

        if (sAmount.Length > 0)

        {

            if (sAmount.Contains(","))

            {

                if (sAmount.Contains("."))

                {

                    string[] stringArr = sAmount.Split(',');

                    foreach (string word in stringArr)

                    {

                        temp += word;

                    }

                    double.TryParse(temp, NumberStyles.AllowDecimalPoint, CultureInfo.CreateSpecificCulture("en-US"), out Amount);

                    Console.WriteLine(Amount);

                }

                else

                {

                    CultureInfo culture = new CultureInfo("de-DE");

                    Amount = Double.Parse(sAmount, culture);

                    Console.WriteLine(Amount);

                }

            }

            else

            {

                double.TryParse(sAmount, out Amount);

                Console.WriteLine(Amount);

            }

        }

    }

}