Access Violation

Created with colorer-take5 library. Type 'csharp'

0: using System;
1: using System.Windows.Forms;
2: using System.Threading;
3:
4: namespace TestWinForm
5: {
6:     public partial class TestCallBackFromDiferentThread : Form
7:     {
8:         private System.Threading.Thread workerThread;
9:
10:         public TestCallBackFromDiferentThread()
11:         {
12:             InitializeComponent();
13:         }
14:
15:         private void button1_Click(object sender, EventArgs e)
16:         {
17:             ThreadStart ts = new ThreadStart(AddNewLine);
18:             workerThread = new Thread(ts);
19:             workerThread.Start();
20:         }
21:
22:         private void AddNewLine()
23:         {
24:             listBox1.Items.Add(textBox1.Text);
25:         }
26:     }
27: }