Hi all, this is the first time I try to study the socket of .NET. I configed follow the tutorial here http://msdn.microsoft.com/en-us/library/aa478452.aspx . Then I try to write some execute code for my project. I insert an "Add item" to a listbox after socket server receiving Data from client. However, the server doesn't execute my "Add item" code and it disconnect to the client?
If I erase this code, everything is ok!

Is there anybody here can help me resolve this? Thank you very much.
Best Regards!
This is a link to my Solution (Clean )
http://www.mediafire.com/download.php?x3s6e42kr6xm7i2