Question

我想发送一个文件，当系统观察程序发现创建的文件以“ .txt”，“ .doc”或“ .docx”结尾时找到该文件“ 。我的问题是系统观察程序只发现以“ .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 
}

Answer 1

我认为这会对您有所帮助，只需动态创建一个控制台应用并将其粘贴并试用即可：

        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);
        }

还有库纳指出

attachmenttosend.Add（Attachmenttosend）;

我想从大写和小写的情况来看，你试图在属性的后备字段中添加它自己的属性，不要，也......你不要只添加一个字符串+ =（concat）。除非attachmenttosend是一个例如字符串列表。

FileSystemWatcher：多种类型

1 个答案: