CODEWITHSUNDEEP
c#windowsnetwork-programming
pistacchio
pistacchio

Reputation: 58963

Programmatically Enable / Disable Connection

on Windows 7 I can enable and disable connections via the Network Connections Manager panel (in system settings).

How can I do this programmatically in C#? Thanks

Upvotes: 10

Views: 14683

Answers (1)

Tim Lloyd
Tim Lloyd

Reputation: 38494

You can achieve this in C# by leveraging WMI and the Win32_NetworkAdapter WMI class. The Win32_NetworkAdapter class has Enable and Disable methods which can be executed on a selected network interface.

An example of usage can be found here:

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

link not available, but archived at:

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

Briefly, steps to do this are:

  1. Generate a wrapper for the class from VS command prompt

    mgmtclassgen Win32_NetworkAdapter /L CS -p NetworkAdapter.cs

  2. Stepping through the adapters:

    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();
 }
}

Upvotes: 16

Related Questions