private void Button_Connect(object sender, RoutedEventArgs e)
{
if (count == 0)
{
CHAT.Text += "\n Попытки законились";
CHAT_SCROLL.ScrollToBottom();
}
else
{
try
{
string userName = txt_nm.Text;
string message = txt_msg.Text;
if (string.IsNullOrWhiteSpace(message))
{
MessageBoxResult mbr = MessageBox.Show("Сообщение не может быть пустым!");
}
else
{
Thread t = new Thread(() => Connect(userName, message, address, port));
t.Start();
}
}
catch (FormatException p)
{
Console.WriteLine(p.Message + "\n" + p.StackTrace);
MessageBoxResult mbr = MessageBox.Show("Неправильный формат сообщения!");
return;
throw;
}
}
}
private void Add_Message(string message)
{
try
{
//Lambda, for accessing the main Threads GUI from another thread.
this.Dispatcher.Invoke(() =>
{
CHAT.Text += "\n" + message;
CHAT_SCROLL.ScrollToBottom();
});
}
catch (System.Threading.Tasks.TaskCanceledException e)
{
Console.WriteLine("Threading Exception caught! {0}\n {1}", e.Message, e.StackTrace);
client.Close();
client.Dispose();
Thread.CurrentThread.Join();
}
}
private void Send(NetworkStream stream, string userName, string message)
{
message = String.Format("{0}: {1}", userName, message);
// преобразуем сообщение в массив байтов
byte[] data = Encoding.Unicode.GetBytes(message);
// отправка сообщения
try
{
if (stream.CanWrite)
{
stream.Write(data, 0, data.Length);
this.Dispatcher.Invoke(() =>
{
CHAT.Text += "\n" + message;
CHAT_SCROLL.ScrollToBottom();
});
}
}
catch (ArgumentOutOfRangeException e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
MessageBoxResult mbr = MessageBox.Show("The message size is too big for the buffer.");
return;
}
catch (System.IO.IOException e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
MessageBoxResult mbr = MessageBox.Show("An error occurred when accessing the socket.");
return;
}
catch (ObjectDisposedException e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
MessageBoxResult mbr = MessageBox.Show("There was a failure reading from the network.");
return;
}
}
private void Receive(NetworkStream ns)
{
byte[] data = new byte[64];
string message;
try
{
if (ns.CanRead)
{
if (client.Connected)
{
StringBuilder builder = new StringBuilder();
int bytes = 0;
do
{
bytes = ns.Read(data, 0, data.Length);
builder.Append(Encoding.Unicode.GetString(data, 0, bytes));
}while (ns.DataAvailable);
message = builder.ToString();
message = String.Format("Сервер: {0}", message);
this.Dispatcher.Invoke(() =>
{
CHAT.Text += "\n" + message;
CHAT_SCROLL.ScrollToBottom();
if (builder.ToString() == "NACK")
{
count--;
message = String.Format("У вас осталось {0} попыток", count);
CHAT.Text += "\n" + message;
CHAT_SCROLL.ScrollToBottom();
}
;
});
}
else
{
this.Dispatcher.Invoke(() =>
{
CHAT.Text += "\n not connected anymore";
CHAT_SCROLL.ScrollToBottom();
});
}
}
else
{
//return null;
}
}
catch (System.IO.IOException e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
client.Close();
//MessageBoxResult mbr = MessageBox.Show("TCP Client is closed.");
//return null;
}
catch (ObjectDisposedException e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
MessageBoxResult mbr = MessageBox.Show("There was a failure reading from the network.");
client.Close();
//return null;
}
}
