ThreadContext

//#define UseThreadContext

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Caching;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApplication7
{
    class Program
    {
        static void Main(string[] args)
        {
            TestContext();

        }

        private static void TestContext()
        {

            for (int i = 0; i < 10000; i++)
            {
                var j = i;
                var t = new Thread(() =>
                {
                    MyThreads m = new MyThreads();

                    m.Run(j);

                    Thread.Sleep(new Random(i).Next(1, 9));

                    m.Print();
                });

                t.Start();
            }

            Console.ReadKey();
        }

        public class MyThreads
        {
            private int I;
#if !UseThreadContext
            [ThreadStatic]
            private static int x;
#endif

            public void Run(int i)
            {

                this.I = i;

#if UseThreadContext
                CallContext.HostContext = i;
#else
                x = i;
#endif
            }

            public void Print()
            {
#if UseThreadContext
                var contexti = (int)CallContext.HostContext;
#else
                var contexti = x;
#endif

                if (contexti != I)
                {
                    throw new Exception("not Equals" + contexti + "VS" + I);
                }

                Console.WriteLine(contexti);
            }
        }