原文:C# 设置IP地址及设置自动获取IP

</pre><pre name="code" class="csharp">1.添加引用"system.Management"

2.添加using System.Management

</pre><pre name="code" class="csharp">using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Management;

namespace IPChange

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        static void SetNetworkAdapter()

        {

            ManagementBaseObject inPar = null;

            ManagementBaseObject outPar = null;

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                if (!(bool)mo["IPEnabled"])

                    continue;

                inPar = mo.GetMethodParameters("EnableStatic");

                inPar["IPAddress"] = new string[] { "172.17.123.154"};

                inPar["SubnetMask"] = new string[] { "255.255.255.0"};

                outPar = mo.InvokeMethod("EnableStatic", inPar, null);

                inPar = mo.GetMethodParameters("SetGateways");

                inPar["DefaultIPGateway"] = new string[] { "172.17.123.254"};

                outPar = mo.InvokeMethod("SetGateways", inPar, null);

                inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");

                inPar["DNSServerSearchOrder"] = new string[] { "211.137.241.34", "202.97.224.69" };

                outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);

                break;

            }

        }

        private void Form1_Load(object sender, EventArgs e)

        {

        }

        private void button1_Click(object sender, EventArgs e)

        {

            SetNetworkAdapter();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                if (!(bool)mo["IPEnabled"]) continue;

                mo.InvokeMethod("SetDNSServerSearchOrder", null);

                mo.InvokeMethod("EnableStatic", null);

                mo.InvokeMethod("SetGateways", null);

                mo.InvokeMethod("EnableDHCP", null);

                break;

            }

        }

    }

}