I want to use botsharp library in win form application in C#

using System;
using System.Threading.Tasks;
using System.Windows.Forms;
using TelegramBotSharp;
using TelegramBotSharp.Types;
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public static TelegramBot bot;
        public Form1()
        {
            InitializeComponent();


        }

        private void button1_Click(object sender, EventArgs e)
        {
            bot = new TelegramBot("146900***********************-FyoSPg");
             new Task(PollMessages1).Start();
        }

        static async void PollMessages1()
        {
            while (true)
            {
                var result = await bot.GetMessages();
                foreach (Message m in result)
                {
                    if (m.Chat != null)
                    {
                        Console.WriteLine("[{0}] {1} : {2}", m.Chat.Title, m.From.Username, m.Text);
                    }
                    else
                    {
                        Console.WriteLine("{0}: {1}", m.From.Username, m.Text);
                    }
                    ControlMessages1(m);
                }

            }
        }

        private static void ControlMessages1(Message m)
        {
            if (m.Text == null) return;
            MessageTarget target = (MessageTarget)m.Chat ?? m.From;

                bot.SendMessage(target, "hello");
         }
    }
}