private void btnPort_Click( object sender, System.EventArgs e )
{
ComPorts.FindComPorts();
MyPortSettingsDialog.DisplayComPorts();
MyPortSettingsDialog.SelectComPort( UserPort1.SelectedPort.PortName );
MyPortSettingsDialog.SelectBitRate( UserPort1.SelectedPort.BaudRate );
MyPortSettingsDialog.SelectHandshaking( UserPort1.SelectedPort.Handshake );
UserPort1.ParameterChanged = false;
MyPortSettingsDialog.ShowDialog();
}