向EventArgs添加属性

就个人而言,我不会扩展filesystemwatcher,而是将其作为类中的实例变量。您并不真正扩展FileSystemWatcher的主要功能,而是利用它的功能(例如,监听更改/创建的/任何文件,并将其与您要查找的文件相匹配)。

public class SpecificFileWatcher
{
  public string FileToTest { get; set; }

  private readonly FileSystemWatcher iWatcher;


  public class SpecificFileWatcher(FileSystemWatcher watcher)
  {
    iWatcher = watcher;
    iWatcher.Changed += iWatcher_Changed; //whatever event you need here
  }

  //eventhandler for watcher
  public ...
  {
    if(e.FileName == FileToTest)
      Console.WriteLine("file found");
  }
}