using System;

using System.Collections.Generic;

using System.Net;

using System.Net.NetworkInformation;

using System.Threading.Tasks;

using System.Threading.Tasks.Dataflow;

using System.Text.RegularExpressions;

​

public class Program

{

    private static List<IPStatus> _results;

    public static async Task MyMethodAsync(IPAddress ip)

    {

        await Task.Delay(500);

        Console.WriteLine("processing");

    }

​

    public static async Task Asd()

    {

        var options = new ExecutionDataflowBlockOptions{MaxDegreeOfParallelism = 2};

        var block = new ActionBlock<IPAddress>(ip => MyMethodAsync(ip), options);

        var list = new List<IPAddress>{IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback, IPAddress.Loopback};

        foreach (var ip in list)

        {

            block.Post(ip);

        }

​

        block.Complete();

        await block.Completion;

    }

​

    public static void Main()

    {

      Dictionary<DateTime, List<string>> Sample = new Dictionary<DateTime, List<string>>();

    Sample.Add( DateTime.Parse("5/8/2018 11:18:00 AM"), new List<string>());

    Sample.Add( DateTime.Parse("5/8/2018 11:17:46 AM"), new List<string>());

    Sample.Add( DateTime.Parse("2/27/2010 1:06:49.123456 PM"), new List<string>());

    Sample.Add( DateTime.Parse("5/8/2018 11:18:08 AM"), new List<string>());

        DateTime date = DateTime.Parse("2/27/2010 1:06:49 PM");

foreach (KeyValuePair<DateTime, List<string>> k in Sample)

{

   if (date.Ticks/10000000 == k.Key.Ticks/10000000)

   {

      Console.WriteLine("Yes");

   }

   else {

      Console.WriteLine("No");

   }

}

    }

}