/// <summary> /// sending a message on the button click /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Button_Click(object sender, RoutedEventArgs e) { try { TcpClient client = new TcpClient(); client.Connect(IPAddress.Parse(MainWindow.ip_adres_serser), 10000); string textmessage = this.Messagebox.Text; int count_newLine = textmessage.Length / 30; string newtext = null; int count = 30; string[] mas = textmessage.Split(' '); for (int i = 0; i < mas.Length; i++) { if ((newtext + mas[i]).Length > count) { newtext += "&&" + mas[i] + " "; count += 30; } else { newtext += (mas[i] + " "); } } var buf = Encoding.Unicode.GetBytes(string.Format("009{0}\\{1}\\{2}", NameChat, myid, newtext)); NetworkStream s = client.GetStream(); s.Write(buf, 0, buf.Length); buf = new byte[4096]; var iReadServ = s.Read(buf, 0, buf.Length); string str = Encoding.Unicode.GetString(buf, 0, iReadServ); if (int.Parse(str) != 1) { MessageBox.Show("Сообщение не отправилось, повторите попытку"); } s.Close(); s = null; ViewMessage(NameChat, myid); Messagebox.Clear(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }