How to Select COM Port All Details Using C#

Add Two References

- using System.Management;
- using System.IO.Ports;

:: Write this code in page load event ::

ManagementObjectCollection ManObjReturn;
ManagementObjectSearcher ManObjSearch;
ManObjSearch = new ManagementObjectSearcher("Select * from Win32_SerialPort");
ManObjReturn = ManObjSearch.Get();

foreach (ManagementObject ManObj in ManObjReturn)
{
                //int s = ManObj.Properties.Count;
                //foreach (PropertyData d in ManObj.Properties)
                //{
                //    MessageBox.Show(d.Name);
                //}
                MessageBox.Show(
                    "Device ID : " + ManObj["DeviceID"] + "\n"
                    + "PNP Device ID : " + ManObj["PNPDeviceID"] + "\n"
                    + "Name : " + ManObj["Name"] + "\n"
                    + "Caption : " + ManObj["Caption"] + "\n"
                    + "Description : " + ManObj["Description"] + "\n"
                    + "Provider Type : " + ManObj["ProviderType"] + "\n"
                + "Status : " + ManObj["Status"]);
}