如何确定C＃中是否连接/断开以太网电缆 [英] How to determine if an ethernet cable is connected/disconnected in C#

问题描述

我们想在C＃应用程序中确定是否连接了以太网电缆？ 

We like to determine in C# application if the ethernet cable is connected or not? 

目前我们尝试了以下代码：

At the moment we have tried the following code:

        public Client(string csIPadresse)
        {
            try
            {
                m_csIPadresse = csIPadresse;
                ipAddress = IPAddress.Parse(m_csIPadresse);
                remoteEP = new IPEndPoint(ipAddress, 20007);
            }
            catch (Exception ex)
            {
            }
        }

        public bool Connect()
        {
            bool bConnected;
            try
            {
                m_sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                m_sender.Connect(remoteEP);
                bConnected = m_sender.Connected;
                return true;
            }
            catch (Exception ex)
            {
                bConnected = m_sender.Connected;
                m_sender.Close();
                return false;
            }
        }

但m_sender.Connected始终为true，但电缆未连接。

But m_sender.Connected is always true, although the cable isn't connected.

有没有人知道这个问题的解决方案？ 

Does anybody knows a solution for the problem? 

谢谢，

Andreas

推荐答案

嗨Andreas，

Hi Andreas,

这里。希望这会有所帮助。

There is an archived post regarding the same at Here. Hope this will be helpful.

这篇关于如何确定C＃中是否连接/断开以太网电缆的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！