using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            UpdateThread = new Thread(DoUpdate);
            UpdateThread.IsBackground = true;

            UpdateCounter = 0;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (UpdateThread.ThreadState != ThreadState.Running)
            {
                UpdateThread.Start();
            }
        }

        private void DoUpdate()
        {
            while (true)
            {
                if (false)// some condition like x = 4
                {
                    break; // breka out of the loop
                }

                if (this.InvokeRequired)
                {
                    this.Invoke(UpdateInvoker);
                }

                UpdateCounter++;

                Thread.Sleep(10);
            }
        }

        private int _updateCounter;
        public int UpdateCounter
        {
            get { return _updateCounter; }
            private set { _updateCounter = value; }
        }

        private MethodInvoker _updateInvoker;
        public MethodInvoker UpdateInvoker
        {
            get
            {
                if (_updateInvoker == null)
                {
                    _updateInvoker = new MethodInvoker(delegate()
                    {
                        label1.Text = UpdateCounter.ToString();
                    });
                }

                return _updateInvoker;
            }
        }

        private Thread _updateThread;
        public Thread UpdateThread
        {
            get { return _updateThread; }
            private set { _updateThread = value; }
        }
    }
}