IP配置程序的设计与实现

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;
using System.IO;
using System.Net.NetworkInformation;
using System.Net;

namespace Ip
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            // 获取本地计算机所有网卡信息
            string carName = "";
            ManagementObjectSearcher search = new ManagementObjectSearcher("SELECT * FROM Win32_NetWorkAdapterConfiguration");
            foreach (ManagementObject sear in search.Get())
            {
                if (sear["IPAddress"] != null)
                {
                    carName = sear["Description"].ToString().Trim();
                    comboBox1.Items.Add(carName);
                }
            }
            comboBox1.SelectedIndex = 0;
        }

        private void button1_Click(object sender, EventArgs e)
        {

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {

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

                  if (mo["Description"].ToString() == comboBox1.SelectedItem.ToString().Trim() )
                    {

                        //获取IP
                        string IpAddress = "";
                        System.Array ar;
                        ar = (System.Array)(mo.Properties["IpAddress"].Value);
                        IpAddress = ar.GetValue(0).ToString();
                        textBox1.Text = IpAddress;
                        //获取子网掩码
                        string IPSubnet = "";
                        ar = (System.Array)(mo.Properties["IPSubnet"].Value);
                        IPSubnet = ar.GetValue(0).ToString();
                        textBox2.Text = IPSubnet;

                        //获取网关
                        string DefaultIPGateway = "";
                        ar = (System.Array)(mo.Properties["DefaultIPGateway"].Value);
                        if (ar != null)
                            DefaultIPGateway = ar.GetValue(0).ToString();
                        textBox3.Text = DefaultIPGateway;
                        //获取DNS
                        string DNSServerSearchOrder1 = "";
                        string DNSServerSearchOrder2 = "";
                        ar = (System.Array)(mo.Properties["DNSServerSearchOrder"].Value);
                        if (ar != null)
                        {
                            DNSServerSearchOrder1 = ar.GetValue(0).ToString();
                            DNSServerSearchOrder2 = ar.GetValue(1).ToString();
                        }
                        textBox4.Text = DNSServerSearchOrder1;
                        textBox5.Text = DNSServerSearchOrder2;

                        MessageBox.Show(comboBox1.SelectedItem.ToString() + "自动获取成功！");

                    }


                }
            }

        }

        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"])
                {
                    if (mo["Description"].ToString() == comboBox1.SelectedItem.ToString().Trim() )
                    {
                        ManagementBaseObject newIP = mo.GetMethodParameters("EnableStatic");
                        ManagementBaseObject newGateway = mo.GetMethodParameters("SetGateways");
                        ManagementBaseObject newDNS = mo.GetMethodParameters("SetDNSServerSearchOrder");

                        // 将要修改的目标 IP 地址
                        //   string selectNewIP;
                        string IPStr = "";
                        string[] IPPart = textBox1.Text.Split('.');
                       if(IPPart.Length == 4)
                        {
                            for (int i = 0; i <= 3; i++)
                            {
                                //删除尾部首部的空格
                                IPStr += (IPPart[i].Trim() + ".");
                            }
                            IPStr = IPStr.Substring(0, IPStr.Length - 1);
                        }
                        newIP["IPAddress"] = new string[] { IPStr };

                        //设置子网掩码
                        string subStr = "";
                        string[] subPart =textBox2.Text.Split('.');
                        if(subPart.Length == 4)
                        {
                            for (int i = 0; i <= 3; i++)
                            {
                                //删除尾部首部的空格
                                subStr += (subPart[i].Trim() + ".");
                            }
                            subStr = subStr.Substring(0, subStr.Length - 1);
                        }
                        
                        newIP["SubnetMask"] = new string[] { subStr };

                        //设置网关地址
                        string gatStr = "";
                        string[] gatPart = textBox3.Text.Split('.');
                        if(gatPart.Length == 4)
                        {
                            for (int i = 0; i <= 3; i++)
                            {
                                gatStr += (gatPart[i].Trim() + ".");
                            }
                            gatStr = gatStr.Substring(0, gatStr.Length - 1);
                        }
                            
                        newGateway["DefaultIPGateway"] = new string[] { gatStr };
                        // 将要修改的目标 DNS 首选地址
                        string dnsStr1 = "";
                        string dnsStr2 = "";
                           
                        string[] dnsPart1 = textBox4.Text.Split('.');
                        if(dnsPart1.Length == 4)
                        {
                            for (int i = 0; i <= 3; i++)
                            {
                                dnsStr1 += (dnsPart1[i].Trim() + ".");
                            }
                            dnsStr1 = dnsStr1.Substring(0, dnsStr1.Length - 1);
                        }
                        // 将要修改的目标 DNS 备用地址      
                        string[] dnsPart2 = textBox5.Text.Split('.');
                        if( dnsPart2.Length == 4)
                        {
                            for (int i = 0; i <= 3; i++)
                            {
                                dnsStr2 += (dnsPart2[i].Trim() + ".");
                            }
                            dnsStr2 = dnsStr2.Substring(0, dnsStr2.Length - 1);
                        }
                      
                        newDNS["DNSServerSearchOrder"] = new string[] { dnsStr1, dnsStr2 };

                        // 修改网络设置
                        try
                        {
                            ManagementBaseObject setIP = mo.InvokeMethod("EnableStatic", newIP, null);
                            ManagementBaseObject setGateways = mo.InvokeMethod("SetGateways", newGateway, null);
                            ManagementBaseObject setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);

                            MessageBox.Show("设置成功");
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show(ex.Message);
                        }
                        break;
                    }
                }
            }
        }

  

        private void comboBox1_SelectedIndexChanged_1(object sender, EventArgs e)
        {
            textBox1.Text = null;
            textBox2.Text = null;
            textBox3.Text = null;
            textBox4.Text = null;
            textBox5.Text = null;
        }
    }
}