TcpClient send/close problem

Question

Do I need to close the connection to have messages actually sent? Because whether I use send command or use a network stream, my messages don't get processed until I close connection. Is that the way it's supposed to be or am I missing something?

Ok here's the code.

private void connectButton_Click(object sender, EventArgs e)
{
   try
   {
      client = new TcpClient();
      client.Connect(ip, port);
      netStream = client.GetStream();
   }
   catch (Exception ex)
   {
      MessageBox.Show(ex.Message);
   }
}

private void disconnectButton_Click(object sender, EventArgs e)
{
   if (client != null)
   {
      if (client.Connected)
      {
         client.Close();
         client = null;
      }
   }
}

private void sendButton_Click(object sender, EventArgs e)
{
   byte[] cmd = ToByteArray("bla bla bla");
   netStream.Write(cmd, 0, cmd.Length);
   netStream.Flush();
}

I don't think it has to do with this method but have a look.

public static byte[] ToByteArray(string str)
{
   System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
   return encoding.GetBytes(str);
}

Answer 1

you are probably using buffered streams, try to call the .Flush method, which is also automatically called when clode is invoked.