Summary of how C# implements the method of enabling and disabling local networks [3 ways]

This article summarizes how C# implements the enablement and disabling of local networks. Share it for your reference, as follows:

1) Use

Using Add Reference, importing it into the project will generate 3 references, mainly using NETCONLib.

In the project, use NETCONLib;

Here is the implementation code:

NetSharingManagerClass netSharingMgr = new NetSharingManagerClass();
INetSharingEveryConnectionCollection connections = ;
foreach (INetConnection connection in connections)
{
INetConnectionProps connProps = netSharingMgr.get_NetConnectionProps(connection);
if ( == tagNETCON_MEDIATYPE.NCM_LAN)
{
(); //Disable the network();  //Enable network}
}

2) Use

It is a Windows shell related application program interface dynamic link library file, used to open web pages and files.

Use Add Reference to import into the project.

In the project, use Shell32;

Here is the implementation code:

const string discVerb = "Disable(&amp;B)";
const string connVerb = "Enable(&amp;A)";
Shell sh = new ();
Folder folder;
Folder fd;
folder = (3);
foreach (FolderItem myItem in ())
{
if ( == "Network Connection")
{
fd = (Folder);
//Disable the networkforeach (FolderItem fi in ())
{
foreach (FolderItemVerb Fib in ())
{
if ( == discVerb)
{
();
break;
}
}
(3000);
foreach (FolderItemVerb Fib in ())
{
//Enable networkif ( == connVerb)
{
();
break;
}
}
}
}
}

3) Use

It is a popular installer that supports related files

You cannot import the first two into the project through Add Reference like the previous two, you can only use DllImport

There are many codes, post the main code

[DllImport("")]
public static extern IntPtr
SetupDiGetClassDevsA(ref Guid ClassGuid, UInt32 Enumerator,
IntPtr hwndParent, UInt32 Flags);
[DllImport("")]
public static extern IntPtr
SetupDiGetClassDevs(UInt32 ClassGuid, String e, IntPtr hwndParent, UInt32 Flags);
[DllImport("")]
static extern Boolean
SetupDiEnumDeviceInfo(IntPtr DeviceInfoSet, UInt32 MemberIndex,
ref SP_DEVINFO_DATA DeviceInfoData);
…………
uint NewNetStatus = 0;
if (newStatus)
NewNetStatus = DICS_ENABLE;
else
   NewNetStatus = DICS_DISABLE;
IntPtr NewDeviceInfoSet;
SP_DEVINFO_DATA spData = new SP_DEVINFO_DATA();
 = (uint)(spData);
UInt32 RequiredSize = 0;
byte[] st1 = new byte[1024];
uint Data = 0;
NewDeviceInfoSet = SetupDiGetClassDevs(0, "PCI", , DIGCF_PRESENT | DIGCF_ALLCLASSES);
bool bFound = false;
for (uint i = 0; SetupDiEnumDeviceInfo(NewDeviceInfoSet, i, ref spData); i++)
{
while (!SetupDiGetDeviceRegistryProperty(NewDeviceInfoSet, ref spData, SPDRP_HARDWAREID, ref Data, st1, 1024, ref RequiredSize))
{
}
string str = (st1); ;
char[] a ={ '/0' };
string[] strSPlit = (a, );
string HardId = @"PCI/VEN_10EC&DEV_8029&SUBSYS_00000000";
for (uint j = 0; j < ; j++)
{
if (strSPlit[j] == HardId)
{
bFound = true;
break;
}
}
   if (bFound)
   break;
}
SP_PROPCHANGE_PARAMS spPropChangeParam = new SP_PROPCHANGE_PARAMS();
 = DICS_FLAG_GLOBAL;
 = NewNetStatus;
 = (UInt32)();
 = DIF_PROPERTYCHANGE;
SetupDiSetClassInstallParams(NewDeviceInfoSet, ref spData, ref , (spPropChangeParam));
SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, NewDeviceInfoSet, ref spData);
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);

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I hope this article will be helpful to everyone's C# programming.