Threads

Question

i am a beginner to C# i am trying to type some code for threading, and now i came across this error:"A field initializer cannot reference the non-static field, method, or property 'Thread_test.Form1.task()' "

and here is my code in c#:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Threading;

namespace Thread_test

{

    public partial class Form1 : Form

    {

            Thread process = new Thread(new ThreadStart(task));

        

        public void task()

        {

            int a = 0;

            for (; ; )

            {

                a = a + 1;

                textBox1.Text = Convert.ToString(a);

            }

        }

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

        }

        private void button1_Click(object sender, EventArgs e)

        {

            process.Start();

        }

    }

}

Thanks for your help !-)