private void frmMain_Load(object sender, EventArgs e)
{
foreach (string portName in SerialPort.GetPortNames())
{
cbPorts.Items.Add(portName);
if (portName == "COM1")
cbPorts.SelectedIndex = cbPorts.Items.Count - 1;
}
if (cbPorts.SelectedIndex < 0 && cbPorts.Items.Count > 0)
cbPorts.SelectedIndex = 0;
loadDeviceList();
}
#endregion