本地连接

Question

C# 中怎么判断本地连接是否连接，如果没连接怎么实现连接？？

Answer 1

如果是说的网线有没有插好：C# 中怎么判断本地连接是否连接：NetworkInterface.GetIsNetworkAvailable()如果没连接怎么实现连接：弹出个提示框，提示用户检查网线或网络

Answer 2

public static bool Ping(string remoteHost)
        {
            bool Flag = false;
            Process proc = new Process();
            try
            {
                proc.StartInfo.FileName = "cmd.exe";
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardInput = true;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.RedirectStandardError = true;
                proc.StartInfo.CreateNoWindow = true;
                proc.Start();
                string dosLine = @"ping -n 1 " + remoteHost;
                proc.StandardInput.WriteLine(dosLine);
                proc.StandardInput.WriteLine("exit");
                while (proc.HasExited == false)
                {
                    proc.WaitForExit(500);
                }
                string pingResult = proc.StandardOutput.ReadToEnd();
                if (pingResult.IndexOf("(0% loss)") != -1)
                {
                    Flag = true;
                }
                proc.StandardOutput.Close();
            }
            catch (Exception ex)
            {
            }
            finally
            {
                try
                {
                    proc.Close();
                    proc.Dispose();
                }
                catch
                {
                }
            }
            return Flag;
        }remoteHost填写你要ping的服务器

Answer 3

刚才测试一下，可以用:
首先添加Microsoft Shell Control And Automation引用:        static void Main(string[] args)
        {
            NetWork("本地连接", "启用");//输入你的本地连接名称和要做的操作：启用或停用
        }        static void NetWork(string netWorkName, string operation)
        {
            Shell32.Shell shell = new Shell32.ShellClass();
            Shell32.Folder folder = shell.NameSpace(49);
            foreach (Shell32.FolderItem fi in folder.Items())
            {
                if (fi.Name != netWorkName)
                    continue;
                Shell32.ShellFolderItem folderItem = (Shell32.ShellFolderItem)fi;
                foreach (Shell32.FolderItemVerb fiv in folderItem.Verbs())
                {
                    if (!fiv.Name.Contains(operation))
                        continue;
                    else
                    {
                        fiv.DoIt();
                        Thread.Sleep(1000);
                        break;
                    }
                }
            }
        }

Answer 4

如果你不知道怎么添加Microsoft Shell Control And Automation引用，请参考一下步骤:
在你的解决方案资源管理器的bin上右键->选择添加引用->选择->COM标签->找到这个引用按确定即可