FileSystemWatcher并非总是触发

Question

如果我使用notepad.exe更改文件，则FileSystemWatcher可以工作，但是如果我使用VisualStudio更改文件，则不能。为什么？ 另请参阅：Powershell File Watcher Not Picking Up File Changes Made in Visual Studio

static void FileWatcher()
{
    FileSystemWatcher watcher = new FileSystemWatcher
    {
        Path = Path.GetDirectoryName(@"D:\Test\"),
        NotifyFilter = NotifyFilters.LastWrite | NotifyFilters.Size,
        Filter = "file.txt",
        EnableRaisingEvents = true
    };
    watcher.Changed += OnFileChanged;
}

static void OnFileChanged(object sender, FileSystemEventArgs e)
{
    Console.WriteLine("{0}  Watcher:  {1}  {2}", DateTime.Now, e.ChangeType, e.FullPath);
}

PS。 watcher.Renamed有效。谢谢mjwills。

Answer 1

通过添加以下代码行，您应该能够捕获所有事件。

watcher.Deleted += OnFileChanged;
watcher.Created += OnFileChanged;