private void AppendText(string message)
{
if (chatTextBox.InvokeRequired)
{
var d = new FillChatDelegate(AppendText);
chatTextBox.Invoke(d, new object[] { message });
}
else
{
chatTextBox.AppendText($"{message}{Environment.NewLine}");
}
}
private void ConnectButton_Click(object sender, EventArgs e)
{
int.TryParse(portTextBox.Text, out var port);
IPAddress.TryParse(ipAddressTextBox.Text, out var ip);
if (port == default || ip == null || string.IsNullOrEmpty(nicknameBox.Text))
{
var incorrectFields =
$"{(port == default ? "port, " : string.Empty)}" +
$"{(ip == null ? "ip address, " : string.Empty)}" +
$"{(string.IsNullOrEmpty(nicknameBox.Text) ? "nickname" : string.Empty)}";
MessageBox.Show($"Some fields are incorrect: {incorrectFields.TrimEnd(new []{' ', ','})}");
}
else
{
var fillChatDelegate = new FillChatDelegate(AppendText);
var updateUserListDelegate = new UpdateUserListDelegate(UpdateUserList);
try
{
_backgroundWorker.Connect(
ip.ToString(),
port,
nicknameBox.Text,
fillChatDelegate,
updateUserListDelegate);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
connectButton.Enabled = false;
nicknameBox.Enabled = false;
portTextBox.Enabled = false;
ipAddressTextBox.Enabled = false;
}
}
///<exception cref="SocketException"></exception>
public void Connect(
string hostname,
int port,
string nickname,
FillChatDelegate fillChatDelegate,
UpdateUserListDelegate updateUserListDelegate)
{
if (!_isConnected)
{
_nickname = nickname;
_fillChatDelegate = fillChatDelegate;
_updateUserListDelegate = updateUserListDelegate;
_client = new TcpClient(hostname, port);
_stream = _client.GetStream();
_isConnected = true;
SendMessage(new NetworkProtocol.Event(NetworkProtocol.EventType.Connect, _nickname));
Task.Run(StartReceiveMessages);
}
}
