Cross Thread

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;

namespace CrossThread
{
    public partial class Form1 : Form
    {
        private Thread guidThread;
        private string newGUID;
        public delegate void GuidThreadCallBack();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            guidThread = new Thread(new ThreadStart(CreateNewGuid));
            guidThread.Start();
        }
        public void CreateNewGuid()
        {
            while (true)
            {
                newGUID = Guid.NewGuid().ToString();
                //textBox1.Text = Guid.NewGuid().ToString();
                try
                {
                    this.Invoke(new GuidThreadCallBack(setTextBoxValue));
                }
                catch { guidThread.Abort(); }
            }
        }
        private void setTextBoxValue()
        {
            textBox1.Text = newGUID;
            textBox1.Refresh();
        }
    
    }
}