private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            foreach (string s in listBox1.SelectedItems)
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From "+s);
                foreach (ManagementObject mo in searcher.Get())
                {
                    textBox1.AppendText("============" + s+ "开始======\r\n");
                    foreach (PropertyData pd in mo.Properties)
                    {
                        textBox1.Text += pd.Name + " :: ";
                        if (pd.Value != null)
                        {
                            textBox1.Text += pd.Value.ToString();
                        }
                        textBox1.Text += "\r\n";
                    }
                    textBox1.AppendText("============" + s + "结束======\r\n\r\n\r\n");
                    //break;
                }
            }
         
            
        }
//获取主板序列号
        public string GetBIOSSerialNumber()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From Win32_BIOS");
                string sBIOSSerialNumber = "";
                foreach (ManagementObject mo in searcher.Get())
                {
                    sBIOSSerialNumber = mo["SerialNumber"].ToString().Trim();
                }
                return sBIOSSerialNumber;
            }
            catch
            {
                return "";
            }
        }
        //获取CPU序列号
        public string GetCPUSerialNumber()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From Win32_Processor");
                string sCPUSerialNumber = "";
                foreach (ManagementObject mo in searcher.Get())
                {
                    sCPUSerialNumber = mo["ProcessorId"].ToString().Trim();
                }
                return sCPUSerialNumber;
            }
            catch
            {
                return "";
            }
        }
        //获取硬盘序列号
        public string GetHardDiskSerialNumber()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
                string sHardDiskSerialNumber = "";
                foreach (ManagementObject mo in searcher.Get())
                {
                    sHardDiskSerialNumber = mo["SerialNumber"].ToString().Trim();
                    break;
                }
                return sHardDiskSerialNumber;
            }
            catch
            {
                return "";
            }
        }
        //获取网卡地址
        public string GetNetCardMACAddress()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapter WHERE ((MACAddress Is Not NULL) AND (Manufacturer <> ‘Microsoft‘))");
                string NetCardMACAddress = "";
                foreach (ManagementObject mo in searcher.Get())
                {
                    NetCardMACAddress = mo["MACAddress"].ToString().Trim();
                }
                return NetCardMACAddress;
            }
            catch
            {
                return "";
            }
        }
在很多情况下,你可能都需要得到微机的硬件信息。比如:你想给你的软件加锁,不让别人随便访问。
最有效的办法是获取CPU的序列号,然后让你的软件只能运行在有这样的CPU序列号的机器上。众所周知,CPU序列号是唯一的!因此,这样就可以为你的软件加锁了。powered by 25175.net
另外一个需要硬盘信息的例子是:硬盘有几个分区,每个分区各有多少剩余空间。当你正在做一个多媒体应用程序的时候,你可能也需要获得有关声卡、显卡的硬件信息。

本应用程序另一个精彩的应用是:获取有关系统内存的信息,如内存地址,内存设备等等。
首先,你必须知道这个应用程序的功能是使用System.Management这个类得到的。因此,你需要加上下面的这句话:
using System.Management;
为了获取硬件信息,你还需要创建一个ManagementObjectSearcher 对象。
ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from " + Key);
// 硬件
Win32_Processor, // CPU 处理器
Win32_PhysicalMemory, // 物理内存条
Win32_Keyboard, // 键盘
Win32_PointingDevice, // 点输入设备,包括鼠标。
Win32_FloppyDrive, // 软盘驱动器
Win32_DiskDrive, // 硬盘驱动器
Win32_CDROMDrive, // 光盘驱动器
Win32_BaseBoard, // 主板
Win32_BIOS, // BIOS 芯片
Win32_ParallelPort, // 并口
Win32_SerialPort, // 串口
Win32_SerialPortConfiguration, // 串口配置
Win32_SoundDevice, // 多媒体设置,一般指声卡。
Win32_SystemSlot, // 主板插槽 (ISA & PCI & AGP)
Win32_USBController, // USB 控制器
Win32_NetworkAdapter, // 网络适配器
Win32_NetworkAdapterConfiguration, // 网络适配器设置
Win32_Printer, // 打印机
Win32_PrinterConfiguration, // 打印机设置
Win32_PrintJob, // 打印机任务
Win32_TCPIPPrinterPort, // 打印机端口
Win32_POTSModem, // MODEM
Win32_POTSModemToSerialPort, // MODEM 端口
Win32_DesktopMonitor, // 显示器
Win32_DisplayConfiguration, // 显卡
Win32_DisplayControllerConfiguration, // 显卡设置
Win32_VideoController, // 显卡细节。
Win32_VideoSettings, // 显卡支持的显示模式。
// 操作系统
Win32_TimeZone, // 时区
Win32_SystemDriver, // 驱动程序
Win32_DiskPartition, // 磁盘分区
Win32_LogicalDisk, // 逻辑磁盘
Win32_LogicalDiskToPartition, // 逻辑磁盘所在分区及始末位置。
Win32_LogicalMemoryConfiguration, // 逻辑内存配置
Win32_PageFile, // 系统页文件信息
Win32_PageFileSetting, // 页文件设置
Win32_BootConfiguration, // 系统启动配置
Win32_ComputerSystem, // 计算机信息简要
Win32_OperatingSystem, // 操作系统信息
Win32_StartupCommand, // 系统自动启动程序
Win32_Service, // 系统安装的服务
Win32_Group, // 系统管理组
Win32_GroupUser, // 系统组帐号
Win32_UserAccount, // 用户帐号
Win32_Process, // 系统进程
Win32_Thread, // 系统线程
Win32_Share, // 共享
Win32_NetworkClient, // 已安装的网络客户端
Win32_NetworkProtocol, // 已安装的网络协议
上面代码的Key是一个将被对应正确的数据填入的值。例如,获取CPU的信息,就需要把Key值设成Win32_Processor。所有Key可能的值,列举如下:
首先,调用ManagementObjectSearcher实例(在本文中的例子里为searcher )中的Get()方法,该方法将会把返回信息填在这个实例中。然后,你所要做的就是处理这个实例searcher中的数据。
foreach (ManagementObject share in searcher.Get()){// Some Codes ...}
每个ManagementObject的对象中都有一些,我们所需要的数据,当然我们可以接着这么处理这些数据:
foreach (PropertyData PC in share.Properties){//some codes ...}
本文中代码的其它部分只是对于ListView控件的一些操作,很简单,就不再详述了!
/// <summary>
        /// 获得CPU编号
        /// </summary>
        /// <returns></returns>
        public string GetCPUID()
        {
            string cpuid = "";
            ManagementClass mc = new ManagementClass("Win32_Processor");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                cpuid = mo.Properties["ProcessorId"].Value.ToString();
            }
            return cpuid;
        }
        /// <summary>
        /// 获取硬盘序列号
        /// </summary>
        /// <returns></returns>
        public string GetDiskSerialNumber()
        {
            //这种模式在插入一个U盘后可能会有不同的结果,如插入我的手机时
            String HDid = "";
            ManagementClass mc = new ManagementClass("Win32_DiskDrive");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                HDid = (string)mo.Properties["Model"].Value;//SerialNumber
                break;//这名话解决有多个物理盘时产生的问题,只取第一个物理硬盘
            }
            return HDid;
            /*ManagementClass mc = new ManagementClass("Win32_PhysicalMedia");
            ManagementObjectCollection moc = mc.GetInstances();
            string str = "";
            foreach (ManagementObject mo in moc)
            {
                str = mo.Properties["SerialNumber"].Value.ToString();
                break;
            }
            return str;*/
        }
        /// <summary>
        /// 获取网卡硬件地址
        /// </summary>
        /// <returns></returns> 
        public string GetMacAddress()
        {
            string mac = "";
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["IPEnabled"] == true)
                {
                    mac = mo["MacAddress"].ToString();
                    break;
                }
            }
            return mac;
        }
        /// <summary>
        /// 获取IP地址
        /// </summary>
        /// <returns></returns>
        public string GetIPAddress()
        {
            string st = "";
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["IPEnabled"] == true)
                {
                    //st=mo["IpAddress"].ToString(); 
                    System.Array ar;
                    ar = (System.Array)(mo.Properties["IpAddress"].Value);
                    st = ar.GetValue(0).ToString();
                    break;
                }
            }
            return st;
        }
        /// <summary>
        /// 操作系统的登录用户名
        /// </summary>
        /// <returns></returns> 
        public string GetUserName()
        {
            return Environment.UserName;
        }
        /// <summary>
        /// 获取计算机名
        /// </summary>
        /// <returns></returns>
        public string GetComputerName()
        {
            return Environment.MachineName;
        }
        /// <summary>
        /// 操作系统类型
        /// </summary>
        /// <returns></returns> 
        public string GetSystemType()
        {
            string st = "";
            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                st = mo["SystemType"].ToString();
            }
            return st;
        }
        /// <summary>
        /// 物理内存
        /// </summary>
        /// <returns></returns>
        public string GetPhysicalMemory()
        {
            string st = "";
            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                st = mo["TotalPhysicalMemory"].ToString();
            }
            return st;
        }
        /// <summary>
        /// 显卡PNPDeviceID
        /// </summary>
        /// <returns></returns>
        public string GetVideoPNPID()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_VideoController");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["PNPDeviceID"].ToString();
            }
            return st;
        }
        /// <summary>
        /// 声卡PNPDeviceID
        /// </summary>
        /// <returns></returns>
        public string GetSoundPNPID()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_SoundDevice");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["PNPDeviceID"].ToString();
            }
            return st;
        }
        /// <summary>
        /// CPU版本信息
        /// </summary>
        /// <returns></returns>
        public string GetCPUVersion()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_Processor");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["Version"].ToString();
            }
            return st;
        }
        /// <summary>
        /// CPU名称信息
        /// </summary>
        /// <returns></returns>
        public string GetCPUName()
        {
            string st = "";
            ManagementObjectSearcher driveID = new ManagementObjectSearcher("Select * from Win32_Processor");
            foreach (ManagementObject mo in driveID.Get())
            {
                st = mo["Name"].ToString();
            }
            return st;
        }
        /// <summary>
        /// CPU制造厂商
        /// </summary>
        /// <returns></returns>
        public string GetCPUManufacturer()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_Processor");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["Manufacturer"].ToString();
            }
            return st;
        }
        /// <summary>
        /// 主板制造厂商
        /// </summary>
        /// <returns></returns>
        public string GetBoardManufacturer()
        {
            SelectQuery query = new SelectQuery("Select * from Win32_BaseBoard");
            ManagementObjectSearcher mos = new ManagementObjectSearcher(query);
            ManagementObjectCollection.ManagementObjectEnumerator data = mos.Get().GetEnumerator();
            data.MoveNext();
            ManagementBaseObject board = data.Current;
            return board.GetPropertyValue("Manufacturer").ToString();
        }
        /// <summary>
        /// 主板编号
        /// </summary>
        /// <returns></returns>
        public string GetBoardID()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_BaseBoard");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["SerialNumber"].ToString();
            }
            return st;
        }
        /// <summary>
        /// 主板型号
        /// </summary>
        /// <returns></returns>
        public string GetBoardType()
        {
            string st = "";
            ManagementObjectSearcher mos = new ManagementObjectSearcher("Select * from Win32_BaseBoard");
            foreach (ManagementObject mo in mos.Get())
            {
                st = mo["Product"].ToString();
            }
            return st;
        }
from:http://www.cnblogs.com/chengulv/archive/2012/12/29/2839303.html
【转】C#取硬盘、CPU、主板、网卡的序号 ManagementObjectSearcher
原文:http://www.cnblogs.com/xuan52rock/p/5774271.html