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


namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        Thread blah;
        public Form1()
        {
            InitializeComponent();
            // define our blah
            blah = new Thread(DoUpdate);
            blah.IsBackground = true;
            // zero our counter
            updateCounter = 0;
        }
        public void startButton1_Click(object sender, EventArgs e)
        {
            if (blah.ThreadState != ThreadState.Running)
            {
                //start it
                blah.Start();
            }
        }
        // declares
        private int _updateCounter;
        public int updateCounter
        {
            // set our counter
            get { return _updateCounter; }
            private set { _updateCounter = value; }
        }
        private void DoUpdate()
        {
            // so do the update while my counter's under 5k
            while (updateCounter < 5000)
            {
                // if I'm at or for osme reason above 5k, break
                if (updateCounter >= 5000)
                {
                    break;
                }
                // invoke the update
                if (this.InvokeRequired)
                {
                    this.invoke(UpdateInvoker);
                }
                // inc it
                UpdateCounter++;
                // sleep for some reason
                Thread.Sleep(10);
                }           
            }       
        }
        public void stopButton1_Click(object sender, EventArgs e)
        {
            // pause our thread
            blah.Suspend();
        }
        private MethodInvoker _updateInvoker;
        public MethodInvoker UpdateInvoker
        {
            get
            {
                if (_updateInvoker == null)
                    _updateInvoker = new MethodInvoker(delegate()
                    {
                        counterLabel1.Text = UpdateCounter.ToString();
                    });
                return _updateInvoker;
            }
        }       
        private Thread _updateThread;
        {
            get { return _updateThread; }
            private set { _updateThread = value; }
        }    
    }
}