[C#]使用 System.Management取得IP資訊(Using System.Management get IP information)

問題

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使用 System.Management取得IP資訊



解決方法

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using System.Management;

public void GetIPNotUsingSystemNety()
{
    ManagementObjectSearcher query = 
        new ManagementObjectSearcher(@"SELECT * 
                                    FROM Win32_NetworkAdapterConfiguration 
                                    WHERE IPEnabled = 'TRUE'");
    ManagementObjectCollection queryCollection = query.Get();
    string ans = "\r\n";
    foreach (ManagementObject mo in queryCollection)
    {
        string[] addresses = (string[])mo["IPAddress"];
        string[] subnets = (string[])mo["IPSubnet"];
        string[] defaultgateways = (string[])mo["DefaultIPGateway"];
        ans += "Network Card: " + mo["Description"] + "\r\n";
        for (int i = 0; i<=addresses.GetLength(0); i++)
        {
            try{
                ans += " IP Address: " + addresses[i].ToString() + "\r\n";
            }
            catch (Exception ex){
                ans += " IP Address: " + "\r\n";
            }
            try{
                ans += " Subnet Mask: " + subnets[i].ToString() + "\r\n";
            }
            catch (Exception ex){
                ans += " Subnet Mask: " + "\r\n";
            }
            try{
                ans += " Gateway: " + defaultgateways[i].ToString() + "\r\n";
            }
            catch (Exception ex){
                ans += " Gateway: " + "\r\n";
            }
        }
        ans += " MAC Address: " 
            + mo["MACAddress"] + "\r\n";
        ans += " DNS Address: " + mo["DNSHostName"] + "\r\n";
        /*
        ans += " DNS Address: " + Dns.GetHostAddresses(mo["DNSHostName"].ToString())[0].ToString() 
            + "\r\n";ans += " DHCP DHCPEnabled : " + mo["DHCPEnabled"] + "\r\n";
        */
        ans += " DHCP Server Address: " + mo["DHCPServer"] + "\r\n";
    }
}