CultureInfo.CurrentCulture for New Threads

The CultureInfo.CurrentCulture for each thread is independent. When a new thread is created, the CurrentCulture is set to the default system locale information, rather than the CurrentCulture of the calling thread. The following code demonstrates this:

using System;

using System.Globalization;

using System.Threading;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            CultureInfo cultureInfo = new CultureInfo("fr-FR");

            Thread.CurrentThread.CurrentCulture = cultureInfo;

            Console.WriteLine("Main Thread Culture: {0}", 
                CultureInfo.CurrentCulture.DisplayName);

            Thread t = new Thread(NewThread);

            t.Start();

        }

        static void NewThread()

        {

            Console.WriteLine("New Thread Culture: {0}", 
                CultureInfo.CurrentCulture.DisplayName);

        }

    }

}

The output is the following:

Main Thread Culture: French (France)

New Thread Culture: English (United States)