wpf - PRISM/Unity IDisposable

Question

我有一些模块在关闭时需要做一些整理工作，但是 PRISM/Unity 似乎不尊重 IDisposable 接口。有人对我如何使它工作有任何建议吗？

Answer 1

I experienced the same issue, and solved it like this:

First I created a custom Event to allow me to signal my modules that the container is closing:

public class ApplicationExitEvent : CompositePresentationEvent<string> { }

Then in my bootstrapper I implement IDisposable and fire the event in my Dispose() method:

    public void Dispose()
    {
        var eventAggregator = Container.Resolve<IEventAggregator>();
        if (eventAggregator != null)
        {
            eventAggregator.GetEvent<ApplicationExitEvent>().Publish("");
        }
    }

Then in my module's Initialize() method I subscribe to this event:

EventAggregator.GetEvent<ApplicationExitEvent>().Subscribe((o) => Dispose(), true);

And put whatever cleanup code I need in my module's Dispose method.

Hope this helps.

Answer 2

很可能您的模块没有被释放，因为它们在容器中注册为单例（共享）组件。

Dispose()手动打开您的容器Application.Exit，并且您的所有一次性模块（以及该容器中其他已解析的共享一次性组件）都应该IDisposable.Dispose()调用它们的方法。