TPL Task waiting on CancellationToken or AutoResetEvent

Program.cs

using System;
using System.Threading;
using System.Threading.Tasks;

namespace cancelThis
{
    class Program
    {
        static void WaitingOnCancellationToken()
        {
            //I initially thought this was a good pattern, but having to catch the OperationCanceledException is not a good flow
            //also you need to wait on the main thread after the the token signals the cancellation, because otherwise the task
            //will likely be still running when you dispose of it
            var cts = new CancellationTokenSource(2000);
            var i = 0;

            using (var countTask = Task.Run(() =>
            {
                while (!cts.IsCancellationRequested)
                {
                    Console.WriteLine($"count is {++i}");
                    Thread.Sleep(500);
                }
            }, cts.Token))
            {
                try
                {
                    countTask.Wait(cts.Token);
                }
                catch (OperationCanceledException)
                {
                }
                Console.WriteLine($"state is {countTask.Status}");
                //ick
                Thread.Sleep(500);
                Console.WriteLine($"state is {countTask.Status}");
            }
        }

        static void WaitOnAutoResetEvent()
        {
            //by using an AutoResetEvent, the task can signal when finished. Note that Mutex has thread affinity
            var cts = new CancellationTokenSource();
            var i = 0;
            var are = new AutoResetEvent(false);
            using (var countTask = Task.Run(() =>
            {
                while (!cts.IsCancellationRequested)
                {
                    Console.WriteLine($"count is {++i}");
                    Thread.Sleep(500);
                }
                are.Set();
            }, cts.Token))
            {
                countTask.Wait(2000, cts.Token);
                cts.Cancel();
                are.WaitOne();
                Console.WriteLine($"state is {countTask.Status}");
            }
        }

        static void Main(string[] args)
        {
            //WaitingOnCancellationToken();
            WaitOnAutoResetEvent();
        }




    }
}