C# 启用或禁用网卡 2种方法

水深无声 2022-06-04 02:23 447阅读 0赞

[http://www.cnblogs.com/freedom831215/archive/2011/08/14/2137828.html][http_www.cnblogs.com_freedom831215_archive_2011_08_14_2137828.html]

\[DllImport("wininet.dll")\]  
private extern static bool InternetCheckConnection(String url, int flag, int ReservedValue);  
/// <summary>  
/// 第一步.检测外网的一个网站，如[www.baidu.com][]  
/// </summary>  
/// <returns></returns>  
public bool GetExtranet()  
\{  
bool extranet = false;  
try  
\{  
if (InternetCheckConnection("[http://www.baidu.com/][www.baidu.com]", 1, 0).Equals(false))  
\{  
extranet = false;  
\}  
else  
\{  
extranet = true;  
\}  
\}  
catch (Exception e)  
\{  
e.ToString();  
\}  
return extranet;  
\}

//禁用 SetNetworkAdapter(False)  
//启用 SetNetworkAdapter(True)  
//添加引用system32\\shell32.dll  
private static bool SetNetworkAdapter(bool status)  
\{  
const string discVerb = "停用(&B)"; // "停用(&B)";  
const string connVerb = "启用(&A)"; // "启用(&A)";  
const string network = "网络连接"; //"网络连接";  
const string networkConnection = "VMware Network Adapter VMnet1"; // "本地连接"  
  
string sVerb = null;  
  
if (status)  
\{  
sVerb = connVerb;  
\}  
else  
\{  
sVerb = discVerb;  
\}  
  
Shell32.Shell sh = new Shell32.Shell();  
Shell32.Folder folder = sh.NameSpace(Shell32.ShellSpecialFolderConstants.ssfCONTROLS);  
  
try  
\{  
//进入控制面板的所有选项  
foreach (Shell32.FolderItem myItem in folder.Items())  
\{  
//进入网络连接  
if (myItem.Name == network)  
\{  
Shell32.Folder fd = (Shell32.Folder)myItem.GetFolder;  
foreach (Shell32.FolderItem fi in fd.Items())  
\{  
//找到本地连接  
if ((fi.Name == networkConnection))  
\{  
//找本地连接的所有右键功能菜单  
foreach (Shell32.FolderItemVerb Fib in fi.Verbs())  
\{  
if (Fib.Name == sVerb)  
\{  
Fib.DoIt();  
return true;  
\}  
\}  
\}  
\}  
\}  
\}  
\}  
catch (Exception e)  
\{  
Console.WriteLine(e.Message);  
return false;  
\}  
return true;  
\}

======

c\#中禁用和开启网卡

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;

using System.Collections;

namespace NetWorkControl

public partial class Form1 : Form

public Form1()

InitializeComponent();

NetWorkList();

/// <summary>

/// 网卡列表

/// </summary>

public void NetWorkList()

string manage = "SELECT \* From Win32\_NetworkAdapter";

ManagementObjectSearcher searcher = new ManagementObjectSearcher(manage);

ManagementObjectCollection collection = searcher.Get();

List<string> netWorkList = new List<string>();

foreach (ManagementObject obj in collection)

netWorkList.Add(obj\["Name"\].ToString());

this.cmbNetWork.DataSource = netWorkList;

/// <summary>

/// 禁用网卡

/// </summary>5

/// <param name="netWorkName">网卡名</param>

/// <returns></returns>

public bool DisableNetWork(ManagementObject network)

try

network.InvokeMethod("Disable", null);

return true;

catch

return false;

/// <summary>

/// 启用网卡

/// </summary>

/// <param name="netWorkName">网卡名</param>

/// <returns></returns>

public bool EnableNetWork(ManagementObject network)

try

network.InvokeMethod("Enable", null );

return true;

catch

return false;

/// <summary>

/// 网卡状态

/// </summary>

/// <param name="netWorkName">网卡名</param>

/// <returns></returns>

public bool NetWorkState(string netWorkName)

string netState = "SELECT \* From Win32\_NetworkAdapter";

ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);

ManagementObjectCollection collection = searcher.Get();

foreach (ManagementObject manage in collection)

if (manage\["Name"\].ToString() == netWorkName )

return true;

return false;

/// <summary>

/// 得到指定网卡

/// </summary>

/// <param name="networkname">网卡名字</param>

/// <returns></returns>

public ManagementObject NetWork(string networkname)

string netState = "SELECT \* From Win32\_NetworkAdapter";

ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);

ManagementObjectCollection collection = searcher.Get();

foreach (ManagementObject manage in collection)

if (manage\["Name"\].ToString() == networkname)

return manage;

return null;

private void btnStart\_Click(object sender, EventArgs e)

if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))

if (!EnableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))

MessageBox.Show("开启网卡失败!");

else

MessageBox.Show("开启网卡成功!");

else

MessageBox.Show("网卡己开启!");

NetWorkList();

private void btnStop\_Click(object sender, EventArgs e)

if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))

if (!DisableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))

MessageBox.Show("禁用网卡失败!");

else

MessageBox.Show("禁用网卡成功!");

else

MessageBox.Show("网卡己禁用!");

NetWorkList();

[http_www.cnblogs.com_freedom831215_archive_2011_08_14_2137828.html]: http://www.cnblogs.com/freedom831215/archive/2011/08/14/2137828.html
[www.baidu.com]: http://www.baidu.com/