本文实例总结了C#实现启用与禁用本地网络的方式。分享给大家供大家参考，具体如下：

1） 使用Hnetcfg.dll

使用Add Reference,把Hnetcfg.dll导入到工程中，会生成3个引用，主要使用NETCONLib。

在工程中要using NETCONLib;

下面是实现的代码：

NetSharingManagerClass netSharingMgr = new NetSharingManagerClass(); INetSharingEveryConnectionCollection connections = netSharingMgr.EnumEveryConnection; foreach (INetConnection connection in connections) { INetConnectionProps connProps = netSharingMgr.get_NetConnectionProps(connection); if (connProps.MediaType == tagNETCON_MEDIATYPE.NCM_LAN) { connection.Disconnect(); //禁用网络 connection.Connect(); //启用网络 } }

2） 使用Shell32.dll

shell32.dll是Windows壳Shell相关应用程序接口动态链接库文件，用于打开网页和文件。

使用Add Reference,把Shell32.dll导入到工程中。

在工程中要using Shell32;

下面是实现的代码：

const string discVerb = "停用(&B)"; const string connVerb = "启用(&A)"; Shell sh = new Shell32.Shell(); Folder folder; Folder fd; folder = sh.NameSpace(3); foreach (FolderItem myItem in folder.Items()) { if (myItem.Name == "网络连接") { fd = (Folder)myItem.GetFolder; //禁用网络 foreach (FolderItem fi in fd.Items()) { foreach (FolderItemVerb Fib in fi.Verbs()) { if (Fib.Name == discVerb) { Fib.DoIt(); break; } } Thread.Sleep(3000); foreach (FolderItemVerb Fib in fi.Verbs()) { //启用网络 if (Fib.Name == connVerb) { Fib.DoIt(); break; } } } } }

3） 使用setupapi.dll

setupapi.dll是流行的安装程序支持相关文件

setupapi.dll不能象前面两个通过Add Reference导入到工程中，只能使用DllImport

代码比较多，贴主要代码

[DllImport("setupapi.dll")] public static extern IntPtr SetupDiGetClassDevsA(ref Guid ClassGuid, UInt32 Enumerator, IntPtr hwndParent, UInt32 Flags); [DllImport("setupapi.dll")] public static extern IntPtr SetupDiGetClassDevs(UInt32 ClassGuid, String e, IntPtr hwndParent, UInt32 Flags); [DllImport("setupapi.dll")] 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(); spData.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(spData); UInt32 RequiredSize = 0; byte[] st1 = new byte[1024]; uint Data = 0; NewDeviceInfoSet = SetupDiGetClassDevs(0, "PCI", IntPtr.Zero, 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 = System.Text.Encoding.ASCII.GetString(st1); ; char[] a ={ '/0' }; string[] strSPlit = str.Split(a, StringSplitOptions.RemoveEmptyEntries); string HardId = @"PCI/VEN_10EC&DEV_8029&SUBSYS_00000000"; for (uint j = 0; j < strSPlit.Length; j++) { if (strSPlit[j] == HardId) { bFound = true; break; } } if (bFound) break; } SP_PROPCHANGE_PARAMS spPropChangeParam = new SP_PROPCHANGE_PARAMS(); spPropChangeParam.Scope = DICS_FLAG_GLOBAL; spPropChangeParam.StateChange = NewNetStatus; spPropChangeParam.ClassInstallHeader.cbSize = (UInt32)System.Runtime.InteropServices.Marshal.SizeOf(spPropChangeParam.ClassInstallHeader); spPropChangeParam.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE; SetupDiSetClassInstallParams(NewDeviceInfoSet, ref spData, ref spPropChangeParam.ClassInstallHeader, System.Runtime.InteropServices.Marshal.SizeOf(spPropChangeParam)); SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, NewDeviceInfoSet, ref spData); SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);

希望本文所述对大家C#程序设计有所帮助。