private static void QueryComPortInformation(out List <ComPortInformation> infos)
{
infos = new List <ComPortInformation>();
using (var searcher = new ManagementObjectSearcher
("SELECT * FROM WIN32_SerialPort"))
{
var ports = searcher.Get().Cast <ManagementBaseObject>().ToList();
foreach (ManagementBaseObject item in ports)
{
ComPortInformation info = new ComPortInformation()
{
DeviceId = (string)item["DeviceID"],
DeviceCaption = (string)item["Caption"]
};
if (!infos.Contains(info))
{
infos.Add(info);
}
}
}
}
private void OpenCom()
{
TxtLogView.Clear();
ComPortInformation comInfo = CmbComPorts.SelectedItem as ComPortInformation;
if (comInfo == null)
{
throw new Exception("COM Port is invalid");
}
Log("Open COM Port: " + comInfo.DeviceCaption);
CloseCom();
_serialPort = new SerialPort(comInfo.DeviceId, 9600, Parity.None);
_serialPort.DataReceived += SerialPortOnDataReceived;
_serialPort.ErrorReceived += SerialPortOnErrorReceived;
try
{
_serialPort.Open();
}
catch (Exception ex)
{
Log(string.Format("Open failed: {0}", ex.Message));
CloseCom();
}
}