threads.cs

using System;
using System.Collections.Generic;
using System.Threading;

namespace MaxNumberOfThreadsDemo
{
    public class Program
    {
        private static List<Thread> _threads = new List<Thread>();

        public static void Main(string[] args)
        {
            Console.WriteLine("Creating Threads ...");
            try
            {
                CreateThreadsWithDefaultStackSize();
                //CreateThreadsWithSmallerStackSize();
                //CreateThreadsWithSmallerThanMinStackSize();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }

            Console.ReadLine();
            Console.WriteLine("Cleanning up Threads ...");
            Cleanup();

            Console.WriteLine("Done");
        }


        public static void CreateThreadsWithDefaultStackSize()
        {
            for(int i=0; i< 10000; i++)
            {
                Thread t = new Thread(DoWork);
                _threads.Add(t);
                t.Name = "Thread_" + i;
                t.Start();
                Console.WriteLine(string.Format("{0} started!",t.Name));
            }
            
        }
        private static  void Cleanup()
        {
            foreach (var thread in _threads)
                thread.Abort();
            _threads.Clear();
            _threads = null;
        }

        private static void DoWork()
        {
            Thread.Sleep(Int32.MaxValue-1);
        }
    }
}