MethodInfo.Invoke 仅在 Prism EventAggregator 的调试模式下工作

发布于 2024-11-05 03:26:43 字数 563 浏览 6 评论 0原文

我有一个 Prism 的 EventAgregator 的扩展方法，可以使用反射来发布事件。实现如下：

MethodInfo raiseMethod = typeof(Extensions).GetMethod("Raise", BindingFlags.Public | BindingFlags.Static).MakeGenericMethod(obj.GetType());
raiseMethod.Invoke(null, new object[] {eventAggregator, obj, eventType});

该方法调用需要类型化参数的扩展方法。此代码和事件工作正常，但仅限于调试模式。当切换到发布版本时，事件永远不会到达订阅者。

我尝试在订阅期间使用可选参数 keepSubscriberReferenceAlive 但这并不能解决问题。

关于如何解决这个问题有什么想法吗？

更新我发现这个问题和上面的没有关系。似乎有一个过滤器只允许来自同一程序集中的事件。但这确实不能解释为什么代码在调试模式下可以工作。

原文

I have a extension method for Prism's EventAgregator to publish an event using reflection. The implementation is as follows:

MethodInfo raiseMethod = typeof(Extensions).GetMethod("Raise", BindingFlags.Public | BindingFlags.Static).MakeGenericMethod(obj.GetType());
raiseMethod.Invoke(null, new object[] {eventAggregator, obj, eventType});

This method calls an extension method which requires a typed parameter. This code, and the eventing work fine, but only in Debug mode. When switching to a Release build the event never arrives at the subscriber.

I have tried using the optional parameter during subscription keepSubscriberReferenceAlive but that does not fix the problem.

Any idea on how to fix this issue?

Update
I found that the issue is not releated to the above. It seems there is a filter in place which only allowed event from within the same assembly. But this really doesn't explain why the code worked while in debug mode.

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