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  • FileSystemWatch使用示例

    MSDN上一段关于使用FileSystemWatch类的例子,今天写的一个功能使用到监视文件系统的应用,看到这段代码,很有启发,留作纪念。代码如下:

    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;

             watcher.IncludeSubdirectories = True; // 这个属性用于指定是否监视指定目录中的子目录,很有用

            // Only watch text files.
            watcher.Filter = "*.*";

            // 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);
        }
    }

    转自:http://blog.csdn.net/guoxubin2005/article/details/4154095

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  • 原文地址:https://www.cnblogs.com/shiningrise/p/2278399.html
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