获取网卡信息

引入的命名空间
代码如下：
 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Text;
 7 using System.Windows.Forms;
 8 using System.Net;
 9 using System.Net.NetworkInformation;
10 
11 namespace WindowsFormsApplication5
12 {
13     public partial class Form1 : Form
14     {
15         public Form1()
16         {
17             InitializeComponent();
18         }
19 
20         private void Form1_Load(object sender, EventArgs e)
21         {
22             ShowAdapterInfo();
23         }
24 
25         /// <summary>  
26         /// 显示网卡信息  
27         /// </summary>  
28         private void ShowAdapterInfo()
29         {
30             NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
31             lst_NetworkAdapter.Items.Add("适配器个数：" + adapters.Length);
32             int index = 0;
33 
34             foreach (NetworkInterface adapter in adapters)
35             {
36                 index++;
37                 //显示网络适配器描述信息、名称、类型、速度、MAC 地址  
38                 lst_NetworkAdapter.Items.Add("---------------------第" + index + "个适配器信息---------------------");
39                 lst_NetworkAdapter.Items.Add("描述信息：" + adapter.Name);
40                 lst_NetworkAdapter.Items.Add("类型：" + adapter.NetworkInterfaceType);
41                 lst_NetworkAdapter.Items.Add("速度：" + adapter.Speed / 1000 / 1000 + "MB");
42                 lst_NetworkAdapter.Items.Add("MAC 地址：" + adapter.GetPhysicalAddress());
43 
44                 //获取IPInterfaceProperties实例  
45                 IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
46 
47                 //获取并显示DNS服务器IP地址信息  
48                 IPAddressCollection dnsServers = adapterProperties.DnsAddresses;
49                 if (dnsServers.Count > 0)
50                 {
51                     foreach (IPAddress dns in dnsServers)
52                     {
53                         lst_NetworkAdapter.Items.Add("DNS 服务器IP地址：" + dns + "
");
54                     }
55                 }
56                 else
57                 {
58                     lst_NetworkAdapter.Items.Add("DNS 服务器IP地址：" + "
");
59                 }
60             }
61         }  
62     }
63 }