文件系统观察器:多种类型

本文关键字：种类 类型 观察 文件系统 | 更新日期: 2023-09-27 18:36:47

我想发送一个文件，当系统观察程序发现以".txt"、".doc"或".docx"结尾的已创建文件时，该文件已找到。我的问题是系统观察器只发现以".txt"结尾的文件。

这是我的代码：

private String Attachmenttosend
{
    get { return attachmentfile; }
    set { attachmentfile = value; }
}
private void NewFileSystemWatcher()
{
    String filter = "*.txt,*.doc,*.docx";   
    string[] FileExtension = filter.Split(',');  
    for (int i = 0; i < FileExtension.GetLength(0); i++)
    {
        watcher = new FileSystemWatcher(folder); // on its own Thread
        watcher.Created += new FileSystemEventHandler(NewEMail); 
        attachmenttosend.Add(Attachmenttosend); 
        watcher.Filter = FileExtension[i];
        watcher.EnableRaisingEvents = true;
        watchlist.Add(watcher);
    }
    Send(Attachmenttosend); 
}
private void NewEMail(Object source, FileSystemEventArgs e)
{
    while (Locked(e.FullPath)) // check if the file is used
    {
        Thread.Sleep(10);
    }
    Attachmenttosend = e.FullPath; // store the filename 
}

文件系统观察器:多种类型

我认为这会对您有所帮助，只需即时创建一个控制台应用程序并将其粘贴并尝试一下：

        private static string[] filters = new string[] { ".txt", ".doc", ".docx" };
        static void Main(string[] args)
        {
            FileSystemWatcher watcher = new FileSystemWatcher();
            watcher.Path = @"C:'...'...'...";//your directory here
            /* 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;
            //dont set this
            //watcher.Filter = "*.txt";
            watcher.Changed += new FileSystemEventHandler(OnChanged);
            watcher.Created += new FileSystemEventHandler(OnChanged);
            watcher.Deleted += new FileSystemEventHandler(OnChanged);
            watcher.Renamed += new RenamedEventHandler(OnRenamed);
            watcher.EnableRaisingEvents = true;
            Console.ReadKey();
        }
        private static void OnChanged(object source, FileSystemEventArgs e)
        {          
            if(filters.Contains(Path.GetExtension(e.FullPath)))
            {
                Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
                //Attachmenttosend = e.FullPath;
            }
        }
        private static void OnRenamed(object source, RenamedEventArgs e)
        {
            if (filters.Contains(Path.GetExtension(e.FullPath)))
            Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath);
        }

正如库纳尔指出的那样

附件发送。添加（附件发送）;

我猜从大写和小写，你试图将它自己的属性添加到属性的支持字段中，不要，也......您不只添加到字符串 += （concat）。除非 attachmenttosend 是一个例如字符串列表。

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