1 public class TextBoxWriter : System.IO.TextWriter
 2     {
 3         ListBox lstBox;
 4         delegate void VoidAction();
 5 
 6         public TextBoxWriter(ListBox box)
 7         {
 8             lstBox = box;
 9         }
10 
11         public override void Write(string value)
12         {
13             VoidAction action = delegate
14             {
15                 lstBox.Items.Insert(0, string.Format("[{0:HH:mm:ss}]{1}", DateTime.Now, value));
16             };
17             lstBox.BeginInvoke(action);
18         }
19 
20         public override void WriteLine(string value)
21         {
22             VoidAction action = delegate
23             {
24                 lstBox.Items.Insert(0, string.Format("[{0:HH:mm:ss}]{1}", DateTime.Now, value));
25             };
26             lstBox.BeginInvoke(action);
27         }
28 
29         public override System.Text.Encoding Encoding
30         {
31             get { return System.Text.Encoding.UTF8; }
32         }
33     }