C# 如何使FileSystemWatcher在命名目录之前等待引发创建的事件？

我有一个

FileSystemWatcher

，它在创建新目录时触发一个

OnCreated

事件。但目录名称始终是默认名称（newDirectory（1））

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是否可以等到确认目录名称后再进行操作？（用户焦点从ordners name文本框中消失）

您不能直接钩住文件夹的创建和命名（这显然是两个事件）。相反，您可以创建自己的自定义类，在其中可以实现目标。以下是示例代码：

class FolderCreationWatcher
{
    private FileSystemWatcher watcher = new FileSystemWatcher();
    private string lastFileName = string.Empty;
    public delegate void OnFolderCreated(object sender, FileSystemEventArgs e);
    public event OnFolderCreated FolderCreated;

    Timer timer = new Timer();

    public FolderCreationWatcher(string dirPath, int timeOut)
    {
        watcher.Path = dirPath;
        watcher.EnableRaisingEvents = true;
        watcher.Created += watcher_Created;
        timer.Interval = timeOut;
        timer.Enabled = false;
        timer.Elapsed += timer_Elapsed;
    }

    void timer_Elapsed(object sender, ElapsedEventArgs e)
    {
        this.NotifyFolderCreated();
    }

    private void watcher_Created(object sender, FileSystemEventArgs e)
    {
        lastFileName = e.Name;
        watcher.Renamed += OnRenamed;
        timer.Enabled = true;
    }

    void OnRenamed(object sender, RenamedEventArgs e)
    {
        if (e.OldName.Equals(lastFileName))
        {
            lastFileName = e.Name;
            this.NotifyFolderCreated();
        }
    }

    private void NotifyFolderCreated()
    {
        if (FolderCreated != null)
            FolderCreated(this, new FileSystemEventArgs(WatcherChangeTypes.Created, watcher.Path, lastFileName));
        timer.Enabled = false;
        watcher.Renamed -= OnRenamed;
    }

此类用法如下所示：

FolderCreationWatcher folderWatcher = new FolderCreationWatcher(dirPath, 5000);
        folderWatcher.FolderCreated += OnFolderCreated;

    void OnFolderCreated(object sender, FileSystemEventArgs e)
    {
        //Do Something
    }

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您不能直接钩住文件夹的创建和命名（这显然是两个事件）。相反，您可以创建自己的自定义类，在其中可以实现目标。以下是示例代码：

class FolderCreationWatcher
{
    private FileSystemWatcher watcher = new FileSystemWatcher();
    private string lastFileName = string.Empty;
    public delegate void OnFolderCreated(object sender, FileSystemEventArgs e);
    public event OnFolderCreated FolderCreated;

    Timer timer = new Timer();

    public FolderCreationWatcher(string dirPath, int timeOut)
    {
        watcher.Path = dirPath;
        watcher.EnableRaisingEvents = true;
        watcher.Created += watcher_Created;
        timer.Interval = timeOut;
        timer.Enabled = false;
        timer.Elapsed += timer_Elapsed;
    }

    void timer_Elapsed(object sender, ElapsedEventArgs e)
    {
        this.NotifyFolderCreated();
    }

    private void watcher_Created(object sender, FileSystemEventArgs e)
    {
        lastFileName = e.Name;
        watcher.Renamed += OnRenamed;
        timer.Enabled = true;
    }

    void OnRenamed(object sender, RenamedEventArgs e)
    {
        if (e.OldName.Equals(lastFileName))
        {
            lastFileName = e.Name;
            this.NotifyFolderCreated();
        }
    }

    private void NotifyFolderCreated()
    {
        if (FolderCreated != null)
            FolderCreated(this, new FileSystemEventArgs(WatcherChangeTypes.Created, watcher.Path, lastFileName));
        timer.Enabled = false;
        watcher.Renamed -= OnRenamed;
    }

此类用法如下所示：

FolderCreationWatcher folderWatcher = new FolderCreationWatcher(dirPath, 5000);
        folderWatcher.FolderCreated += OnFolderCreated;

    void OnFolderCreated(object sender, FileSystemEventArgs e)
    {
        //Do Something
    }

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就文件系统而言，创建目录和随后的重命名操作是两个完全无关的事件。您不应该期望挂接到文件系统中的某些内容尝试关联them@CarlSixsmith-我想在JJS语言中，图像“Ordner”是“Folder”。@CarlSixsmith“Neuer Ordner”是德语。如果您想要新名称，然后还将侦听重命名事件，并仅触发代码延迟，以便您可以确保用户已完成文件夹的创建和重命名。鉴于无法保证用户将重命名文件夹，您最好应用启发式并等待一段时间，以查看是否发生重命名。或者发明一台时间机器，以便您知道用户将执行重命名操作。就文件系统而言，创建目录和随后的重命名操作是两个完全无关的事件。您不应该期望挂接到文件系统中的某些内容尝试关联them@CarlSixsmith-我想在JJS语言中，图像“Ordner”是“Folder”。@CarlSixsmith“Neuer Ordner”是德语。如果您想要新名称，然后还将侦听重命名事件，并仅触发代码延迟，以便您可以确保用户已完成文件夹的创建和重命名。鉴于无法保证用户将重命名文件夹，您最好应用启发式并等待一段时间，以查看是否发生重命名。或者发明一台时间机器，这样您就可以知道用户将执行重命名操作。