C#获取本机电脑相关信息，已验证

类

using System;
using System.Runtime.InteropServices;
using System.Management; //需要在解决方案中引用System.Management.DLL文件

namespace WebApplication1
{
    /**//// <summary>
    /// HardInfoClass 的摘要说明。
    /// </summary>
    public class HardInfoClass
    {


        [DllImport("kernel32.dll")]
        private static extern int GetVolumeInformation(
            string lpRootPathName,
            string lpVolumeNameBuffer,
            int nVolumeNameSize,
            ref int lpVolumeSerialNumber,
            int lpMaximumComponentLength,
            int lpFileSystemFlags,
            string lpFileSystemNameBuffer,
            int nFileSystemNameSize
            );

        public HardInfoClass()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

        //取机器名 
        public string GetHostName()
        {
            return System.Net.Dns.GetHostName();
        }

        //取CPU编号 
        public string GetCpuID()
        {
            try
            {
                ManagementClass mc = new ManagementClass("Win32_Processor");
                ManagementObjectCollection moc = mc.GetInstances();

                string strCpuID = null;
                foreach (ManagementObject mo in moc)
                {
                    strCpuID = mo.Properties["ProcessorId"].Value.ToString();
                    break;
                }
                return strCpuID;
            }
            catch
            {
                return "";
            }

        }//end method 

        //获取网卡MAC地址

        public string GetNetCardMAC()
        {
            try
            {
                string stringMAC = "";
                ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection MOC = MC.GetInstances();

                foreach (ManagementObject MO in MOC)
                {
                    if ((bool)MO["IPEnabled"] == true)
                    {
                        stringMAC += MO["MACAddress"].ToString();

                    }
                }
                return stringMAC;
            }
            catch(Exception exp)
            {

                return "";
            }
        }

        //获取硬盘信息的代码
        public string GetVolOf(string drvID)
        {
            try
            {
                const int MAX_FILENAME_LEN = 256;
                int retVal = 0;
                int a = 0;
                int b = 0;
                string str1 = null;
                string str2 = null;


                int i = GetVolumeInformation(
                    drvID + @":",
                    str1,
                    MAX_FILENAME_LEN,
                    ref retVal,
                    a,
                    b,
                    str2,
                    MAX_FILENAME_LEN
                    );

                return retVal.ToString("x");
            }
            catch
            {
                return "";
            }
        }


        //获取当前网卡IP地址
        public string GetNetCardIP()
        {
            try
            {
                string stringIP = "";
                ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection MOC = MC.GetInstances();

                foreach (ManagementObject MO in MOC)
                {
                    if ((bool)MO["IPEnabled"] == true)
                    {
                        string[] IPAddresses = (string[])MO["IPAddress"];
                        if (IPAddresses.Length > 0)
                            stringIP = IPAddresses[0].ToString();

                    }
                }
                return stringIP;
            }
            catch
            {
                return "";
            }
        }

    }
}

页面调用

 HardInfoClass myclass = new HardInfoClass();
            
            TextBox2.Text = myclass.GetCpuID();
            TextBox3.Text = myclass.GetNetCardMAC();
            TextBox4.Text = myclass.GetNetCardIP();
            TextBox5.Text = myclass.GetHostName();
            TextBox6.Text = myclass.GetVolOf("D");