以编程方式启用/禁用连接

通过利用WMI和Win32#NetworkAdapter WMI类,您可以在C#中实现这一点。Win32\U NetworkAdapter类具有可在选定网络接口上执行的启用和禁用方法。

用法示例如下:

http://blog.opennetcf.com/ncowburn/2008/06/24/HOWTODisableEnableNetworkConnectionsProgrammaticallyUnderVista.aspx

http://web.archive.org/web/20120615012706/http://blog.opennetcf.com/ncowburn/2008/06/24/HOWTODisableEnableNetworkConnectionsProgrammaticallyUnderVista.aspx

简单地说,步骤如下:

1. 从VS命令提示符生成类的包装器

   mgmtclassgen Win32_NetworkAdapter /L CS -p NetworkAdapter.cs

2. SelectQuery query = new SelectQuery("Win32_NetworkAdapter", "NetConnectionStatus=2");
   ManagementObjectSearcher search = new ManagementObjectSearcher(query);
   foreach(ManagementObject result in search.Get()) {
    NetworkAdapter adapter = new NetworkAdapter(result);
    // Identify the adapter you wish to disable here. 
    // In particular, check the AdapterType and 
    // Description properties.
    // Here, we're selecting the LAN adapters.
    if (adapter.AdapterType.Contains("Ethernet 802.3")) {
       adapter.Disable();
    }
   }