//Konfigurationsdialog zur Auswahl einer TCP-Verbindung oder eines COM-Ports
bool ConfigCommunication()
{
if (_communicationType == _communicationNone)
{
SelectSrc selectSrcDialog = new SelectSrc(); // Open Source Selection Dialog
DialogResult selectSrcResult = selectSrcDialog.ShowDialog(this);
if (selectSrcDialog.useSocket)
{
// Select IP address and port number and set BinaryReader and BinaryWriter
// TODO: set Protocol handler
SelectTCPIP selectIpDialog = new SelectTCPIP();
DialogResult selectIpResult = selectIpDialog.ShowDialog(this);
if (selectIpDialog.error)
{
// if an error occured or the input form was cancelled, return false
return(false);
}
try
{
// Initialise an TCP Socket
m_socket = new TcpClient();
m_socket.Connect(selectIpDialog.ipAddress, selectIpDialog.port); // try to connect to given IP + Port
}
catch (Exception ex)
{
if (ex is System.Net.Sockets.SocketException)
{
// Connect failed to connect
MessageBox.Show(Resources.ConnectError + selectIpDialog.ipAddress + "\n" + ex.Message);
return(false);
}
}
m_protocolHandler = new ProtocolHandler(m_socket, this);
_communicationType = _communicationSocket;
return(true);
}
else if (selectSrcDialog.useCOM)
{
// Select COM Port, set Binary Reader and Writer
var comport = "";
var baudrate = "";
var databits = "";
Parity parity = Parity.None;
StopBits stopbits = StopBits.One;
var comDialog = new ChooseCom(); //Open window
if (comDialog.ShowDialog(this) == DialogResult.OK)
{
comport = comDialog.Port; //Save selected COM-Port
baudrate = comDialog.Baud; //Save selected BAUD-Rate
databits = comDialog.DataBits; //Save selected Data Bits
switch (comDialog.Parity) //Save selected Parity
{
case "None":
parity = Parity.None;
break;
case "Odd":
parity = Parity.Odd;
break;
case "Even":
parity = Parity.Even;
break;
case "Mark":
parity = Parity.Mark;
break;
case "Space":
parity = Parity.Space;
break;
}
switch (comDialog.StopBits) //Save selected Stop Bits
{
case "One":
stopbits = StopBits.One;
break;
case "OnePointFive":
stopbits = StopBits.OnePointFive;
break;
case "Two":
stopbits = StopBits.Two;
break;
}
comDialog.Dispose();
}
if (comport == "")
{
return(false);
}
m_serialPort.PortName = comport;
m_serialPort.BaudRate = Convert.ToInt32(baudrate);
m_serialPort.DataBits = Convert.ToInt32(databits);
m_serialPort.Parity = parity;
m_serialPort.StopBits = stopbits;
try
{
m_serialPort.Open(); //Serielle verbindung öffnen
m_protocolHandler = new ProtocolHandler(m_serialPort, this); //Start ProtocolHandler
_communicationType = _communicationCom; //Declare Communicaton as open
return(true);
}
catch (IOException)
{
MessageBox.Show(@"IO Exception: " + comport + Resources.PortNotFound);
return(false);
}
catch (Exception)
{
MessageBox.Show(@"Exception: " + comport + Resources.PortNotFound);
return(false);
}
}
else
{
// no selection made
return(false);
}
}
else
{
// already connected
return(false);
}
}