C#查找局域网內所有電腦

﹏ヽ暗。殇╰゛Y 2022-08-26 03:51 150阅读 0赞

本文主要示例winform中的异步調用,至于活動目錄等相關知識,還需另查資料.

要完成本例的調試,需在一個窗体上加一個richTextBox1和一button1.點button1時會在richTextBox1中顯示所有域名及其下的各計算机名稱和IP地址.一台電計算机顯示一行,如果有多個IP也顯示在同一行.

using System.Threading;  
using System.DirectoryServices;  
using System.Net;

public void ShowComputers()  
\{  
//or use "WinNT://your\_domain\_name"  
DirectoryEntry root = new DirectoryEntry("WinNT:");  
DirectoryEntries domains = root.Children;  
domains.SchemaFilter.Add("domain");  
foreach (DirectoryEntry domain in domains)  
\{  
AddContent(domain.Name+"/t/r");

DirectoryEntries computers = domain.Children;  
computers.SchemaFilter.Add("computer");  
foreach (DirectoryEntry computer in computers)  
\{  
AddContent("/t" + computer.Name);  
IPHostEntry iphe;  
try  
\{  
iphe = Dns.GetHostEntry(computer.Name);  
foreach (IPAddress ip in iphe.AddressList)  
\{  
AddContent("/t/t" + ip);//多個网卡顯示在一行  
\}  
AddContent("/r");  
\}  
catch (Exception ex)  
\{  
MessageBox.Show(ex.ToString());  
AddContent("/t/t" + "未知"+"/r");  
\}

//DirectoryEntries users = computer.Children;

\}  
\}

Complete("完成");  
\}

private void button1\_Click(object sender, EventArgs e)  
\{  
this.button1.Text = "正在查找....";  
ThreadStart threadStart = new ThreadStart(ShowComputers);//通过ThreadStart委托告诉子线程执行什么方法  
Thread thread = new Thread(threadStart);  
thread.Start();  
\}

delegate void changeText(string result);  
private void AddContent(string content)  
\{  
if (this.InvokeRequired)  
\{  
this.BeginInvoke(new changeText(AddContent), content);  
\}  
else  
\{  
this.richTextBox1.AppendText(content);  
\}  
  
\}  
private void Complete(string content)  
\{  
if (this.InvokeRequired)  
\{  
this.BeginInvoke(new changeText(Complete), content);  
\}  
else  
\{  
this.button1.Text = content;  
\}  
  
\}