private void _connectAndDisconnectComPort(object sender, EventArgs e) { _selectedComPort = _IView.getNameComPort(); if (!ServiceStepMotor.isConnectComPort()) { int speedConnectComPort = _modelSettings.getSpeedConnectComPort(); ServiceStepMotor.connectWithComPort(_selectedComPort, speedConnectComPort); } else { ServiceStepMotor.disconnectWithComPort(); } _changeTextButton(); }