ASP.NET

private void button1_Click(object sender, RoutedEventArgs e)<br />
        {          <br />
            BackgroundWorker bw = new BackgroundWorker();         <br />
            bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(Rsz);<br />
            bw.RunWorkerAsync();<br />
            textBox1.Text = "0";<br />
            for (int i = 0; i < 100; i++)<br />
            {<br />
                System.Threading.Thread.Sleep(100);<br />
                textBox1.Text = i.ToString();<br />
            }<br />
        }<br />
        private void Rsz(object sender, RunWorkerCompletedEventArgs e)<br />
        {<br />
            textBox2.Text = "0";<br />
            for (int i = 0; i < 100; i++)<br />
            {<br />
                System.Threading.Thread.Sleep(100);<br />
                textBox2.Text = i.ToString();<br />
            }           <br />
        }