如何在C＃中ping IP [英] How Can Ping IP in C#

问题描述

你好。如何在C＃中ping IP？

解决方案

你怎么能对此产生疑问？ :-)参见 System.Net.NetworkInformation.Ping 。

-SA

 使用系统; 
 使用 System.Collections.Generic; 
 使用 System.ComponentModel; 
 使用 System.Data; 
 使用 System.Drawing; 
 使用 System.Text; 
 使用 System.Windows.Forms; 
 使用 System.Threading; 
 使用 System.Net.NetworkInformation; 
 命名空间 Ping 
 {
  public   partial   class  Form1：Form 
 {
  //  计算ping  
  private   int  pingsSent; 
  //  可用于通知操作何时完成 
 AutoResetEvent resetEvent =  new  AutoResetEvent（ false ）; 
  public  Form1（）
 {
 InitializeComponent（）; 
} 
 私有  void  btnPing_Click（ object  sender，EventArgs e）
 {
  //  重置数量ping  
 pingsSent =  0 ; 
  //  清除以前任何内容的文本框 
 txtResponse.Clear（） ; 
 txtResponse.Text + =   Ping + txtIP.Text +   32字节数据：\\\\\\\ n; 
  //  发送ping  
 SendPing（）; 
} 
 私有  void  SendPing（）
 {
 System.Net.NetworkInformation.Ping pingSender =  new  System.Net.NetworkInformation.Ping（）; 
  //  为ping完成创建事件处理程序 
 pingSender.PingCompleted + =  new  PingCompletedEventHandler（pingSender_Complete）; 
  //  创建一个32字节数据的缓冲区。 
  byte  [] packetData = Encoding.ASCII.GetBytes（  ................................）; 
  //  跳过50个路由节点顶部，不要分组数据包 
 PingOptions packetOptions =  new  PingOptions（ 50 ， true < /跨度>）; 
  //  异步发送 
 pingSender.SendAsync（txtIP.Text，  5000 ，packetData，packetOptions，resetEvent）; 
} 
 私有  void  pingSender_Complete（ object  sender，PingCompletedEventArgs e）
 {
  //  如果操作是取消后，向用户显示一条消息。 
  if （e.Cancelled）
 {
 txtResponse.Text + =   Ping已取消... \\\\ n; 
  //  主线程可以恢复 
（（AutoResetEvent）e.UserState ）。组（）; 
} 
  else   if （e.Error！=  null ）
 {
 txtResponse.Text + =  发生错误： + e.Error +   \\\\ n ; 
  //  主线程可以恢复 
（（AutoResetEvent）e.UserState ）。组（）; 
} 
  else  
 {
 PingReply pingResponse = e.Reply; 
  //  调用显示ping结果的方法，并用它传递信息 
 ShowPingResults（pingResponse）; 
} 
} 
  public   void  ShowPingResults（PingReply pingResponse）
 {
  if （pingResponse ==  null ）
 {
  //  我们没有回复 
 txtResponse.Text + =  没有回复。\\\\\\\ n; 
  return ; 
} 
  else   if （pingResponse.Status == IPStatus.Success）
 {
  //  我们得到了回复，让我们看看统计数据 
 txtResponse.Text + =  来自 + pingResponse.Address.ToString（）+  ：bytes = + pingResponse.Buffer.Length +   time = + pingResponse.RoundtripTime +   TTL = + pingResponse.Options.Ttl +   \\\\ n; 
} 
 其他 
 {
  //  < span class =code-comment>数据包未按预期返回，解释原因 
 txtResponse.Text + =  < span class =code-string> Ping失败： + pingResponse.Status +   \ r\\\
\r\\\
; 
} 
  //  增加计数器，以便我们可以跟踪发送的ping  
 pingsSent ++; 
  //  发送4个ping  
  if （pingsSent& lt;  4 ）
 {
 SendPing（）; 
} 
} 
} 
} 

谢谢兄弟，经过长时间的研究，我得到了代码。

hi peple. How Can Ping IP in C#

解决方案

How could you have a doubt about it? :-) See System.Net.NetworkInformation.Ping.

—SA

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net.NetworkInformation;
namespace Ping
{
    public partial class Form1 : Form
    {
        // Counts the pings
        private int pingsSent;
        // Can be used to notify when the operation completes
        AutoResetEvent resetEvent = new AutoResetEvent(false);
        public Form1()
        {
            InitializeComponent();
        }
        private void btnPing_Click(object sender, EventArgs e)
        {
            // Reset the number of pings
            pingsSent = 0;
            // Clear the textbox of any previous content
            txtResponse.Clear();
            txtResponse.Text += "Pinging " + txtIP.Text + " with 32 bytes of data:\r\n\r\n";
            // Send the ping
            SendPing();
        }
        private void SendPing()
        {
            System.Net.NetworkInformation.Ping pingSender = new System.Net.NetworkInformation.Ping();
            // Create an event handler for ping complete
            pingSender.PingCompleted += new PingCompletedEventHandler(pingSender_Complete);
            // Create a buffer of 32 bytes of data to be transmitted.
            byte[] packetData = Encoding.ASCII.GetBytes("................................");
            // Jump though 50 routing nodes tops, and don't fragment the packet
            PingOptions packetOptions = new PingOptions(50, true);
            // Send the ping asynchronously
            pingSender.SendAsync(txtIP.Text, 5000, packetData, packetOptions, resetEvent);
        }
        private void pingSender_Complete(object sender, PingCompletedEventArgs e)
        {
            // If the operation was canceled, display a message to the user.
            if (e.Cancelled)
            {
                txtResponse.Text += "Ping was canceled...\r\n";
                // The main thread can resume
                ((AutoResetEvent)e.UserState).Set();
            }
            else if (e.Error != null)
            {
                txtResponse.Text += "An error occured: " + e.Error + "\r\n";
                // The main thread can resume
                ((AutoResetEvent)e.UserState).Set();
            }
            else
            {
                PingReply pingResponse = e.Reply;
                // Call the method that displays the ping results, and pass the information with it
                ShowPingResults(pingResponse);
            }
        }
        public void ShowPingResults(PingReply pingResponse)
        {
            if (pingResponse == null)
            {
                // We got no response
                txtResponse.Text += "There was no response.\r\n\r\n";
                return;
            }
            else if (pingResponse.Status == IPStatus.Success)
            {
                // We got a response, let's see the statistics
                txtResponse.Text += "Reply from " + pingResponse.Address.ToString() + ": bytes=" + pingResponse.Buffer.Length + " time=" + pingResponse.RoundtripTime + " TTL=" + pingResponse.Options.Ttl + "\r\n";
            }
            else
            {
                // The packet didn't get back as expected, explain why
                txtResponse.Text += "Ping was unsuccessful: " + pingResponse.Status + "\r\n\r\n";
            }
            // Increase the counter so that we can keep track of the pings sent
            pingsSent++;
            // Send 4 pings
            if (pingsSent < 4)
            {
                SendPing();
            }
        }
    }
}

Thanks bro , after long research I got code where.

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