Question

我对C＃编码很新。我正在尝试设置一个代码，当文件夹中存在不活动时会提醒我。我们有一个当前和存档文件夹。在当前文件夹中处理文件后，它将移动到存档文件夹。我有代码来检查当前文件夹中是否有容易的部分

        DirectoryInfo id = new DirectoryInfo(@"C\");
        FileInfo[] TXTFiles = id.GetFiles("*.txt");
        if (TXTFiles.Length == 0)
        {
            Console.WriteLine("Files does not ");
            Console.WriteLine("Checking the last processed file in the Archive directory");
            Console.Read();
        }
        if (TXTFiles.Length != 0)
        {
            Console.WriteLine("Files exists ");
            Console.Read();
        }

因此，在文件不存在的逻辑中，我希望有一个额外的步骤来获取最后处理的文本文件的时间戳。这是为了检查没有任何活动的时间。我不知道该怎么办。而不是将此信息写入控制台，我可以发送消息到Web服务

由于

Answer 1

FileSystemWatcher将成为你的朋友：）

https://msdn.microsoft.com/fr-fr/library/system.io.filesystemwatcher(v=vs.110).aspx

using System;
using System.IO;
using System.Security.Permissions;

public class Watcher
{

    public static void Main()
    {
    Run();

    }

    [PermissionSet(SecurityAction.Demand, Name="FullTrust")]
    public static void Run()
    {
        string[] args = System.Environment.GetCommandLineArgs();

        // If a directory is not specified, exit program.
        if(args.Length != 2)
        {
            // Display the proper way to call the program.
            Console.WriteLine("Usage: Watcher.exe (directory)");
            return;
        }

        // Create a new FileSystemWatcher and set its properties.
        FileSystemWatcher watcher = new FileSystemWatcher();
        watcher.Path = args[1];
        /* Watch for changes in LastAccess and LastWrite times, and
           the renaming of files or directories. */
        watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
           | NotifyFilters.FileName | NotifyFilters.DirectoryName;
        // Only watch text files.
        watcher.Filter = "*.txt";

        // Add event handlers.
        watcher.Changed += new FileSystemEventHandler(OnChanged);
        watcher.Created += new FileSystemEventHandler(OnChanged);
        watcher.Deleted += new FileSystemEventHandler(OnChanged);
        watcher.Renamed += new RenamedEventHandler(OnRenamed);

        // Begin watching.
        watcher.EnableRaisingEvents = true;

        // Wait for the user to quit the program.
        Console.WriteLine("Press \'q\' to quit the sample.");
        while(Console.Read()!='q');
    }

    // Define the event handlers.
    private static void OnChanged(object source, FileSystemEventArgs e)
    {
        // Specify what is done when a file is changed, created, or deleted.
       Console.WriteLine("File: " +  e.FullPath + " " + e.ChangeType);
    }

    private static void OnRenamed(object source, RenamedEventArgs e)
    {
        // Specify what is done when a file is renamed.
        Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath);
    }
}

来自MSDN的源代码。

C＃控制台应用程序 - 文件夹

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