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POParameter count mismatch. - Threading
 

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    <p>I am trying to create a multi-client / server chat small application using WPF but I have some problems. Unfortunately when I press the Connect button the program crashes.</p> <p>Well, I done that so far with the client program(with the thread): <code>public delegate void UpdateText(object txt);</code></p> <p>I got that method:</p> <pre><code> private void UpdateTextBox(object txt) { if (msg_log.Dispatcher.CheckAccess()) { Dispatcher.Invoke(new UpdateText(UpdateTextBox),txt); } else { msg_log.Dispatcher.Invoke(new UpdateText(UpdateTextBox), txt); } } </code></pre> <p>And I am using a Button_Click event to connect to the server like that:</p> <pre><code> private void connect_Click(object sender, RoutedEventArgs e) { if ((nick_name.Text == "") || (ip_addr.Text == "") || (port.Text == "")) { MessageBox.Show("Nick name, IP Address and Port fields cannot be null."); } else { client = new Client(); client.ClientName = nick_name.Text; client.ServerIp = ip_addr.Text; client.ServerPort = port.Text; Thread changer = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(UpdateTextBox)); changer.Start(); client.OnClientConnected += new OnClientConnectedDelegate(client_OnClientConnected); client.OnClientConnecting += new OnClientConnectingDelegate(client_OnClientConnecting); client.OnClientDisconnected += new OnClientDisconnectedDelegate(client_OnClientDisconnected); client.OnClientError += new OnClientErrorDelegate(client_OnClientError); client.OnClientFileSending += new OnClientFileSendingDelegate(client_OnClientFileSending); client.OnDataReceived += new OnClientReceivedDelegate(client_OnDataReceived); client.Connect(); } } </code></pre> <p>Please note that the OnClient* events are like <code>private void client_OnDataReceived(object Sender, ClientReceivedArguments R) { UpdateTextBox(R.ReceivedData); }</code></p> <p>So these events should write some text like "Connected" into the msg_log TextBox</p> <p>PS. The txt object used to be a string variable but I change it since <code>ParameterizedThreadStart</code> only accepts objects as parameters as I know.</p> <p>Any help would be greatly appreciated!</p> <p>Thanks in advance, George</p> <p>EDIT: Edited the UpdateTextBox method as Abe Heidebrecht suggested.</p>
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