本文实例讲述了C#列出所有物理网络适配器的方法。分享给大家供大家参考。具体如下：

using System;using System.Collections;using System.Collections.Generic;using System.Linq;using System.Management;using System.Text;namespace RobvanderWoude{ class ListNICs { public static ArrayList nics = new ArrayList( ); public static string computer = string.Empty; // Use global variables, so we only need to run the WMI queries once public static string nsrootwmi = computer + "root\\WMI"; public static string nsrootcimv2 = computer + "root\\CIMV2"; public static ManagementObjectSearcher searcher1 = new ManagementObjectSearcher( nsrootwmi, "SELECT * FROM MSNdis_PhysicalMediumType" ); public static ManagementObjectCollection wmi1 = searcher1.Get( ); public static ManagementObjectSearcher searcher2 = new ManagementObjectSearcher( nsrootcimv2, "SELECT * FROM Win32_NetworkAdapter" ); public static ManagementObjectCollection wmi2 = searcher2.Get( ); public static ManagementObjectSearcher searcher3 = new ManagementObjectSearcher( nsrootwmi, "SELECT * FROM MSNdis_LinkSpeed" ); public static ManagementObjectCollection wmi3 = searcher3.Get( ); static int Main( string[] args ) { try { bool listBluetooth = true; bool listWired = true; bool listWireless = true; #region Command line parsing // Only 2 optional argument allowed: remote computer name and/or adapter type if ( args.Length > 2 ) { return WriteError( "Invalid command line arguments" ); } if ( args.Length > 0 ) { foreach ( string arg in args ) { // We'll display a 'friendly' message if help was requested if ( arg.StartsWith( "/" ) || arg.StartsWith( "-" ) ) { switch ( arg.ToUpper( ) ) { case "/?": case "-?": return WriteError( string.Empty ); case "/B": case "/BLUETOOTH": if ( ( listBluetooth && listWired && listWireless ) == false ) { return WriteError( "Select a single adapter type only, or omit type to select all" ); } listWired = false; listWireless = false; break; case "/W": case "/WIRED": if ( ( listBluetooth && listWired && listWireless ) == false ) { return WriteError( "Select a single adapter type only, or omit type to select all" ); } listBluetooth = false; listWireless = false; break; case "/WL": case "/WIFI": case "/WIRELESS": if ( ( listBluetooth && listWired && listWireless ) == false ) { return WriteError( "Select a single adapter type only, or omit type to select all" ); } listBluetooth = false; listWired = false; break; default: return WriteError( "Invalid command line argument" ); } } else { if ( !string.IsNullOrEmpty( computer ) ) { return WriteError( "Do not specify more than one computer name" ); } computer = "\\\\" + arg + "\\"; } } } #endregion Command line parsing foreach ( ManagementObject queryObj1 in wmi1 ) { if ( queryObj1["NdisPhysicalMediumType"].ToString( ) == "10" ) { if ( listBluetooth ) { AddAdapter( queryObj1["InstanceName"].ToString( ), "Bluetooth" ); } } if ( queryObj1["NdisPhysicalMediumType"].ToString( ) == "0" ) { if ( listWired ) { AddAdapter( queryObj1["InstanceName"].ToString( ), "Wired" ); } } if ( queryObj1["NdisPhysicalMediumType"].ToString( ) == "1" ) { if ( listWireless ) { AddAdapter( queryObj1["InstanceName"].ToString( ), "Wireless" ); } } } nics.Sort( ); foreach ( string nic in nics ) { Console.WriteLine( nic ); } return 0; } catch ( Exception e ) { return WriteError( e ); } } public static void AddAdapter( string name, string type ) { foreach ( ManagementObject queryObj2 in wmi2 ) { if ( ( queryObj2["Name"].ToString( ) == name ) && Convert.ToBoolean( queryObj2["PhysicalAdapter"] ) ) { foreach ( ManagementObject queryObj3 in wmi3 ) { if ( queryObj3["InstanceName"].ToString( ) == name ) { nics.Add( String.Format( "{0,6}", Convert.ToInt32( queryObj3["NdisLinkSpeed"] ) / 10000 ) + " Mb/s\t" + String.Format( "{0,-11}", "[" + type + "]" ) + "\t" + name ); } } } } } #region Error handling public static int WriteError( Exception e ) { return WriteError( e == null ? null : e.Message ); } public static int WriteError( string errorMessage ) { if ( string.IsNullOrEmpty( errorMessage ) == false ) { Console.Error.WriteLine( ); Console.ForegroundColor = ConsoleColor.Red; Console.Error.Write( "ERROR: " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.WriteLine( errorMessage ); Console.ResetColor( ); } Console.Error.WriteLine( ); Console.Error.WriteLine( "ListNICs, Version 1.00" ); Console.Error.WriteLine( "List physical network adapters on the specified computer" ); Console.Error.WriteLine( ); Console.Error.Write( "Usage: " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "LISTNICS" ); Console.ResetColor( ); Console.Error.Write( " [ computername ] [ " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/B" ); Console.ResetColor( ); Console.Error.Write( "luetooth | " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/W" ); Console.ResetColor( ); Console.Error.Write( "ired | " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/W" ); Console.ResetColor( ); Console.Error.Write( "ire" ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "L" ); Console.ResetColor( ); Console.Error.WriteLine( "ess ]" ); Console.Error.WriteLine( ); Console.Error.WriteLine( "Where: \"computername\" is a remote computer name (default: this computer)" ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( " /B" ); Console.ResetColor( ); Console.Error.Write( "luetooth or " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/B" ); Console.ResetColor( ); Console.Error.WriteLine( " list Bluetooth adapters only (default: all)" ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( " /W" ); Console.ResetColor( ); Console.Error.Write( "ired or " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/W" ); Console.ResetColor( ); Console.Error.WriteLine( " list wired adapters only (default: all)" ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( " /W" ); Console.ResetColor( ); Console.Error.Write( "ire" ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "L" ); Console.ResetColor( ); Console.Error.Write( "ess or " ); Console.ForegroundColor = ConsoleColor.White; Console.Error.Write( "/WL" ); Console.ResetColor( ); Console.Error.WriteLine( " list wireless adapters only (default: all)" ); Console.Error.WriteLine( ); Console.Error.WriteLine( "Written by Rob van der Woude" ); return 1; } #endregion Error handling }}

希望本文所述对大家的C#程序设计有所帮助。