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C#實(shí)現(xiàn)一鍵換IP、重置DNS、網(wǎng)關(guān)及掩碼的方法

更新時間：2014年07月26日 17:07:54 投稿：shichen2014

這篇文章主要介紹了C#實(shí)現(xiàn)一鍵換IP、重置DNS、網(wǎng)關(guān)及掩碼的方法,很實(shí)用的功能,需要的朋友可以參考下

本文實(shí)例實(shí)現(xiàn)了C#一鍵換IP、重置DNS、網(wǎng)關(guān)及掩碼的功能，具體實(shí)現(xiàn)的功能為在程序界面窗口中設(shè)置ip地址和子網(wǎng)掩碼，設(shè)置網(wǎng)關(guān)地址，設(shè)置DNS，并且在設(shè)置過程中程序?qū)⑴袛嗳绻麤]有啟用IP設(shè)置的網(wǎng)絡(luò)設(shè)備則跳過，重置DNS為空，并開啟DHCP。

主要功能代碼如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
namespace changeIP
{
  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    private void button1_Click(object sender, EventArgs e)
    {
      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;
        //設(shè)置ip地址和子網(wǎng)掩碼
        inPar = mo.GetMethodParameters("EnableStatic");
        string ip = "";
        ip = numericUpDown1.Value.ToString() + "." + numericUpDown2.Value.ToString() + "." + numericUpDown3.Value.ToString() + "." + numericUpDown4.Value.ToString();
        inPar["IPAddress"] = new string[] { ip };// 1.備用 2.IP

        string ym = "";
        ym = numericUpDown8.Value.ToString() + "." + numericUpDown7.Value.ToString() + "." + numericUpDown6.Value.ToString() + "." + numericUpDown5.Value.ToString();
        inPar["SubnetMask"] = new string[] { ym };
        outPar = mo.InvokeMethod("EnableStatic", inPar, null);
        //設(shè)置網(wǎng)關(guān)地址
        inPar = mo.GetMethodParameters("SetGateways");
        string wg = "";
        wg = numericUpDown12.Value.ToString() + "." + numericUpDown11.Value.ToString() + "." + numericUpDown10.Value.ToString() + "." + numericUpDown9.Value.ToString();
        inPar["DefaultIPGateway"] = new string[] { wg }; // 1.網(wǎng)關(guān);2.備用網(wǎng)關(guān)
        outPar = mo.InvokeMethod("SetGateways", inPar, null);
        //設(shè)置DNS
        inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
        string dns1 = numericUpDown16.Value.ToString() + "." + numericUpDown15.Value.ToString() + "." + numericUpDown14.Value.ToString() + "." + numericUpDown13.Value.ToString();
        string dns2 = numericUpDown20.Value.ToString() + "." + numericUpDown19.Value.ToString() + "." + numericUpDown18.Value.ToString() + "." + numericUpDown17.Value.ToString();
        inPar["DNSServerSearchOrder"] = new string[] { dns1, dns2 }; // 1.DNS 2.備用DNS
        outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);
        break;
      }
    }
    private void button2_Click(object sender, EventArgs e)
    {
      ManagementClass wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");
      ManagementObjectCollection moc = wmi.GetInstances();
      foreach (ManagementObject mo in moc)
      {
        //如果沒有啟用IP設(shè)置的網(wǎng)絡(luò)設(shè)備則跳過
        if (!(bool)mo["IPEnabled"])
          continue;
        //重置DNS為空
        mo.InvokeMethod("SetDNSServerSearchOrder", null);
        //開啟DHCP
        mo.InvokeMethod("EnableDHCP", null);
      }
    }
    private void button3_Click(object sender, EventArgs e)
    {
      this.Close();
      this.Dispose();
    }
    private void Form1_KeyDown(object sender, KeyEventArgs e)
    {
      switch (e.KeyCode)
      {
        case Keys.F2:
          button1_Click(sender, e);
          break;
        case Keys.F3:
          button2_Click(sender, e);
          break;
      }
    }
  }
}

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