BackgroundWorker 事件处理程序
我有一个 BackgroundWorker 对象，我实例化该对象以在后台线程上异步执行数据库进程。我有 DoWork 和 RunWorkerCompleted 的事件处理程序。
我可以看出 BackgroundWorker 正在自行处置，因为我在 Dispose 事件处理程序中添加了一个 MessageBox。
我的问题是：
是否有必要分离事件处理程序以确保内存被清理并且不存在内存泄漏？
I have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted.
I can tell that the BackgroundWorker is disposing of itself because I added a MessageBox into the Disposed event handler.
My question is this:
Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?
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如果事件发布者正在被垃圾收集，则无需取消订阅。仅当事件订阅者（处理程序委托的目标）需要在发布者之前获得垃圾回收资格时，您才需要取消订阅事件。
If an event publisher is being garbage collected, then there's no need to unsubscribe. You only need to unsubscribe from events if the event subscriber (the target of the handler delegate) needs to become eligible for garbage collection before the publisher does.