检测网卡的禁用、启用-白红宇

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 Record

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

ManagementClass newClass = new ManagementClass();

//Set up an event watcher and a handler for the event

ManagementEventWatcher networkAdapterArrivalWatcher =

new ManagementEventWatcher("",

"SELECT * FROM MSNdis_NotifyAdapterArrival ");

ManagementEventWatcher networkAdapterRemovalWatcher =

new ManagementEventWatcher("",

"SELECT * FROM MSNdis_NotifyAdapterRemoval ");

MyHandler handler = new MyHandler();

networkAdapterArrivalWatcher.EventArrived += new EventArrivedEventHandler(handler.Arrived);

networkAdapterRemovalWatcher.EventArrived += new EventArrivedEventHandler(handler.Removed);

//Start watching for events

networkAdapterArrivalWatcher.Start();

networkAdapterRemovalWatcher.Start();

//while (true)

// System.Threading.Thread.Sleep(200000);

//IsNetworkAvailable;

}

public class MyHandler

{

public void Arrived(object sender, EventArrivedEventArgs e)

{

Console.WriteLine("Network connected");

}

public void Removed(object sender, EventArrivedEventArgs e)

{

Console.WriteLine("Network disconnected");

}

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2009/08/14/1545775.html，如需转载请自行联系原作者