//获取系统中的串口并加入到下拉框中
cbCashBoxPort.Items.Clear();
string[] ports = System.IO.Ports.SerialPort.GetPortNames();
if (ports != null)
{
foreach (string port in ports)
{
cbCashBoxPort.AddItem(port, port);
}
}
//获取系统中的并口并加入到下拉框中
using (ManagementObjectSearcher seacher = new ManagementObjectSearcher("select * from Win32_ParallelPort"))
{
foreach (ManagementObject item in seacher.Get())
{
PropertyData data = item.Properties["Caption"];
cbCashBoxPort.AddItem(data.Value.ToString(),data.Value.ToString());
}
}