C#

<br />
namespace BackgroundThread<br />
{<br />
    public partial class Form1 : Form<br />
    {<br />
        public Form1()<br />
        {<br />
            InitializeComponent();<br />
        }<br />
        private BackgroundWorker worker = null;<br />
<br />
        private void Form1_Load(object sender, EventArgs e)<br />
        {<br />
            worker = new BackgroundWorker();<br />
            worker.DoWork += new DoWorkEventHandler(worker_DoWork);<br />
            worker.RunWorkerAsync();<br />
<br />
        }<br />
<br />
        void worker_DoWork(object sender, DoWorkEventArgs e)<br />
        {<br />
            for (int i = 0; i < 100000; i++)<br />
            {<br />
                if (InvokeRequired)<br />
                    Invoke(new Change(OnChange), i);<br />
            }<br />
<br />
        private void OnChange(int i)<br />
        {<br />
            textBox1.Text += i.ToString() + ",";<br />
            Application.DoEvents();<br />
            Thread.Sleep(100);<br />
        }<br />
<br />
        private delegate void Change(int i);<br />
        <br />
    }<br />
}<br />
<br />

<br />
<br />
private void startBtn_Click(Object sender, EventArgs e)<br />
{<br />
  int Count = 0;<br />
  while(true)<br />
  {<br />
     if(count > 1000)<br />
      {<br />
         break;<br />
      }<br />
<br />
    Thread.Sleep(1000);<br />
    textBox1.Text += "Message" + Environment.NewLine;<br />
    textBox1.Refresh();<br />
    count++;<br />
<br />
}<br />
<br />
The above code again makes the form not responding after i press the start button. <br />
Well i know its a threading problem and i dont have much experience in threading. <br />
<br />
Well actually the above code is just an example. My real application is different and would give message over text box from different parts of application. So how to solve this case..if there is any easy way out like to refresh the form every time...etc...<br />
<br />
Any help would be greatly appreiated..<br />
Thanks<br />
<br />
<br />