asp.net – 在文件夹及其子文件夹上创建缓存依赖性

更新：以下示例代码

public class FolderCacheDependency : CacheDependency
{
    public FolderCacheDependency(string dirName)
    {
        FileSystemWatcher watcher = new FileSystemWatcher(dirName);
        watcher.Changed += new FileSystemEventHandler(watcher_Changed);
        watcher.Deleted += new FileSystemEventHandler(watcher_Changed);
        watcher.Created += new FileSystemEventHandler(watcher_Changed);
        watcher.Renamed += new RenamedEventHandler(watcher_Renamed);
    }

    void watcher_Renamed(object sender, RenamedEventArgs e)
    {
        this.NotifyDependencyChanged(this, e);
    }

    void watcher_Changed(object sender, FileSystemEventArgs e)
    {
        this.NotifyDependencyChanged(this, e);
    }
}