用C#如何获得本地电脑的计算机名

Question

如题。C#基于WINFORM的应用程序，如何获得本地电脑的计算机名，谢谢

Answer 1

            MessageBox.Show(SystemInformation.ComputerName);

Answer 2

MessageBox.Show(SystemInformation.ComputerName); 

Answer 3

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Net;
using System.Net.Sockets;
using System.DirectoryServices;namespace GetIPMac
{
         //private System.ComponentModel.Container components = null;
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }
        [DllImport("Iphlpapi.dll")]
        private static extern int SendARP(Int32 dest, Int32 host, ref Int64 mac, ref Int32 length);
        [DllImport("Ws2_32.dll")]
        private static extern Int32 inet_addr(string ip);
        private string     macAddress,ipAddress;        private bool canPing = false;
        private string  GetMacAddress() // 得到指定IP的MAC地址 
        {
            Int32 ldest = 0;
            try
            {
                ldest = inet_addr(ipAddress);
            }
            catch (Exception iperr)
            {
                MessageBox.Show(iperr.Message);
            }
            Int64 macinfo = new Int64();
            Int32 len = 6;
            try
            {
                int res = SendARP(ldest, 0, ref macinfo, ref len);
            }
            catch (Exception err)
            {
                //    throw new Exception("在解析MAC地址过程发生了错误!"); 
                MessageBox.Show(err.Message);
            }
            string originalMACAddress = macinfo.ToString("X4");
            if (originalMACAddress != "0000" && originalMACAddress.Length == 12)
            { //合法MAC地址 
                string mac1, mac2, mac3, mac4, mac5, mac6;
                mac1 = originalMACAddress.Substring(10, 2);
                mac2 = originalMACAddress.Substring(8, 2);
                mac3 = originalMACAddress.Substring(6, 2);
                mac4 = originalMACAddress.Substring(4, 2);
                mac5 = originalMACAddress.Substring(2, 2);
                mac6 = originalMACAddress.Substring(0, 2);
                macAddress = mac1 + "-" + mac2 + "-" + mac3 + "-" + mac4 + "-" + mac5 + "-" + mac6;
                canPing = true;
            }
            else
            {
                macAddress = "无法探测到MAC地址";
                canPing = false;
            }
            return macAddress;
        }
        private void tbar_ButtonClick(object sender, ToolBarButtonClickEventArgs e)
        {
            switch (e.Button.Name)
            { 
                case "Btn_search":
                    int i = 0;
                    DirectoryEntry root = new DirectoryEntry("WinNT:");
                    DirectoryEntries domains = root.Children;
                    domains.SchemaFilter.Add("domain");
                         foreach (DirectoryEntry  domain in domains)
                         {
                             this.g_list.Items.Add(domain.Name.ToString());
                             
                             DirectoryEntries computers = domain.Children;
                             computers.SchemaFilter.Add("computer");
                                foreach (DirectoryEntry computer in computers)
                             {
                                 this.Grid_view.Rows.Add();
                                 this.Grid_view.Rows[i].Cells[0].Value = i + 1;
                                 this.Grid_view.Rows[i].Cells[1].Value = computer.Name.ToString();
                                 IPHostEntry iphe = null;
                                 try
                                 {
                                     iphe = Dns.GetHostEntry(computer.Name.ToString());
                                     this.Grid_view.Rows[i].Cells[2].Value = iphe.AddressList[0].ToString();
                                     ipAddress = iphe.AddressList[0].ToString();
                                     this.Grid_view.Rows[i].Cells[3].Value = GetMacAddress();                                 }
                                 catch
                                 {
                                     continue;
                                 }
                                 this.Grid_view.Rows[i].Cells[4].Value = domain.Name.ToString();
                                 i++;
                             }  
                           
                         }
                    break;
            
            }
        }        private void button1_Click(object sender, EventArgs e)
        {
            int i = 0;
            DirectoryEntry root = new DirectoryEntry("WinNT:");
            DirectoryEntries domains = root.Children;
            domains.SchemaFilter.Add("domain");
            Application.DoEvents();
            foreach (DirectoryEntry domain in domains)
            {
                this.g_list.Items.Add(domain.Name.ToString());                DirectoryEntries computers = domain.Children;
                computers.SchemaFilter.Add("computer");
                foreach (DirectoryEntry computer in computers)
                {
                    this.Grid_view.Rows.Add();
                    this.Grid_view.Rows[i].Cells[0].Value = i + 1;
                    this.Grid_view.Rows[i].Cells[1].Value = computer.Name.ToString();
                    IPHostEntry iphe = null;
                    try
                    {
                        iphe = Dns.GetHostEntry(computer.Name.ToString());
                        this.Grid_view.Rows[i].Cells[2].Value = iphe.AddressList[0].ToString();
                        ipAddress = iphe.AddressList[0].ToString();
                        this.Grid_view.Rows[i].Cells[3].Value = GetMacAddress();                    }
                    catch
                    {
                        continue;
                    }
                    this.Grid_view.Rows[i].Cells[4].Value = domain.Name.ToString();
                    i++;
                }            }
        }
    }
}

Answer 4

namespace GetIPMac
{
    partial class MainForm
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }        #region Windows 窗体设计器生成的代码        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.Grid_view = new System.Windows.Forms.DataGridView();
            this.button1 = new System.Windows.Forms.Button();
            this.g_list = new System.Windows.Forms.ListBox();
            this.Column1 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column2 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column3 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column4 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column5 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            ((System.ComponentModel.ISupportInitialize)(this.Grid_view)).BeginInit();
            this.SuspendLayout();
            // 
            // Grid_view
            // 
            this.Grid_view.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.Grid_view.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.Column1,
            this.Column2,
            this.Column3,
            this.Column4,
            this.Column5});
            this.Grid_view.Location = new System.Drawing.Point(139, 28);
            this.Grid_view.Name = "Grid_view";
            this.Grid_view.RowTemplate.Height = 23;
            this.Grid_view.Size = new System.Drawing.Size(515, 266);
            this.Grid_view.TabIndex = 0;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(533, 300);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(59, 26);
            this.button1.TabIndex = 1;
            this.button1.Text = "搜索";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // g_list
            // 
            this.g_list.FormattingEnabled = true;
            this.g_list.ItemHeight = 12;
            this.g_list.Location = new System.Drawing.Point(13, 28);
            this.g_list.Name = "g_list";
            this.g_list.Size = new System.Drawing.Size(120, 268);
            this.g_list.TabIndex = 2;
            // 
            // Column1
            // 
            this.Column1.HeaderText = "编号";
            this.Column1.Name = "Column1";
            // 
            // Column2
            // 
            this.Column2.HeaderText = "机器名";
            this.Column2.Name = "Column2";
            // 
            // Column3
            // 
            this.Column3.HeaderText = "IP地址";
            this.Column3.Name = "Column3";
            // 
            // Column4
            // 
            this.Column4.HeaderText = "Mac地址";
            this.Column4.Name = "Column4";
            // 
            // Column5
            // 
            this.Column5.HeaderText = "工作组";
            this.Column5.Name = "Column5";
            // 
            // MainForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(682, 338);
            this.Controls.Add(this.g_list);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.Grid_view);
            this.Name = "MainForm";
            this.Text = "Form1";
            ((System.ComponentModel.ISupportInitialize)(this.Grid_view)).EndInit();
            this.ResumeLayout(false);        }        #endregion        private System.Windows.Forms.DataGridView Grid_view;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.ListBox g_list;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column1;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column2;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column3;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column4;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column5;    }
}以是是获取局域网跟你一个工作组的计算机信息的

Answer 5

 MachineName  获取此本地计算机的 NetBIOS 名称。 
 ComputerName  获取本地计算机的 NetBIOS 计算机名称。 

Answer 6

        private void GetIPAndMacAndHddAndLocalUser()
        {
            //获取本机IP
            string[] IP = new string[C_Common.GetLocalMachineInfo("IP").Length];
            IP = C_Common.GetLocalMachineInfo("IP");
            for (int i = 0; i < IP.Length; i++)
            {
                BRLibrary.Parameter.strLoaclIP = BRLibrary.Parameter.strLoaclIP + IP[i].ToString();
            }            //获取本机MAC
            string[] Mac = new string[C_Common.GetLocalMachineInfo("MAC").Length];
            Mac = C_Common.GetLocalMachineInfo("MAC");
            for (int j = 0; j < Mac.Length; j++)
            {
                BRLibrary.Parameter.strLocalMAC = BRLibrary.Parameter.strLocalMAC + Mac[j];
            }
            if (string.IsNullOrEmpty(BRLibrary.Parameter.strLocalMAC) == false)
            {
                BRLibrary.Parameter.strLocalMAC = BRLibrary.Parameter.strLocalMAC.Substring(0, 12);
            }            //获取本机用户
            string[] User = new string[C_Common.GetLocalMachineInfo("USER").Length];
            User = C_Common.GetLocalMachineInfo("USER");
            for (int k = 0; k < User.Length; k++)
            {
                BRLibrary.Parameter.strLocalUser = BRLibrary.Parameter.strLocalUser + User[k];
            }        }public string[] GetLocalMachineInfo(string Type)
        {
            switch (Type.ToUpper())
            {
                case "IP":
                    IPHostEntry IPHE = new IPHostEntry();
                    IPHE = Dns.GetHostEntry(Dns.GetHostName());
                    string[] resultIP = new string[IPHE.AddressList.Length];
                    for (int i = 0; i < IPHE.AddressList.Length; i++)
                    {
                        resultIP[i] = IPHE.AddressList[i].ToString();
                    }
                    return resultIP;
                    break;
                case "MAC":
                    ManagementClass mc;
                    ManagementObjectCollection moc;
                    mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                    moc = mc.GetInstances();
                    int j = 0;
                    foreach (ManagementObject mo in moc)
                    {
                        if ((bool)mo["IPEnabled"] == true)
                        {
                            j = j + 1;
                        }
                    }
                    string[] resultMac = new string[j];
                    j = 0;
                    foreach (ManagementObject mo in moc)
                    {
                        if ((bool)mo["IPEnabled"] == true)
                        {
                            resultMac[j] = mo["MacAddress"].ToString().Replace(":", "");
                            j = j + 1;
                        }
                    }
                    return resultMac;
                    break;
                case "HDD":
                    ManagementObject disk;
                    disk = new ManagementObject("win32_logicaldisk.deviceid=\"c:\"");
                    disk.Get();
                    string[] resultHDD = new string[1];
                    resultHDD[0] = disk.GetPropertyValue("VolumeSerialNumber").ToString();
                    return resultHDD;
                    break;
                case "USER":
                    ManagementClass mcUser = new ManagementClass("Win32_ComputerSystem");
                    ManagementObjectCollection mocUser = mcUser.GetInstances();
                    int k = 0;
                    foreach (ManagementObject mo in mocUser)
                    {
                        k = k + 1;
                    }
                    string[] resultUser = new string[k];
                    k = 0;
                    foreach (ManagementObject mo in mocUser)
                    {
                        resultUser[k] = mo["UserName"].ToString();                        k = k + 1;
                    }
                    return resultUser;
                    break;
                default:
                    string[] resultNull = new string[1];
                    return resultNull;
                    break;
            }
        }

Answer 7

SystemInformation.ComputerName
这个就可以

Answer 8

MessageBox.Show(SystemInformation.ComputerName);