using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        var a = "1.23";

        var b = "1,23";

        Decimal localCultureResult1, localCultureResult2, invariantCultureResult1, invariantCultureResult2, specificCultureResult1, specificCultureResult2;

        Decimal.TryParse(a, NumberStyles.Any, CultureInfo.CurrentCulture, out localCultureResult1);

        Decimal.TryParse(b, NumberStyles.Any, CultureInfo.CurrentCulture, out localCultureResult2);

        Decimal.TryParse(a, NumberStyles.Any, CultureInfo.InvariantCulture, out invariantCultureResult1);

        Decimal.TryParse(b, NumberStyles.Any, CultureInfo.InvariantCulture, out invariantCultureResult2);

        Decimal.TryParse(a, NumberStyles.Any, CultureInfo.CreateSpecificCulture("fr-FR"), out specificCultureResult1);

        Decimal.TryParse(b, NumberStyles.Any, CultureInfo.CreateSpecificCulture("fr-FR"), out specificCultureResult2);

        Console.WriteLine("Local Culture for 1.23 is " + localCultureResult1);

        Console.WriteLine("Local Culture for 1,23 is " + localCultureResult2);

        Console.WriteLine("Invariant Culture for 1.23 is " + invariantCultureResult1);

        Console.WriteLine("Invariant Culture for 1,23 is " + invariantCultureResult2);

        Console.WriteLine("Specific Culture for 1.23 is " + specificCultureResult1);

        Console.WriteLine("Specific Culture for 1,23 is " + specificCultureResult2);

    }

}