强弱事件

Question

My understanding of events is having a list pointing to the delegate handlers, and whenever a publish is triggered, the aggregator loops through the list to invoke the ref pointers to the handlers.

I have also read about strong and weak events on many places but I don't exactly understand what they are. What are strong and weak events? What are their differences and their usage?

Answer 1

Basically weak events are "normal events" registered using "weak references"... mostly "weak events" are used when building/implementing a control to avoid potential memory leaks since "strong events" (ie strong references) have an impact on lifetime...

For a full explanation with sample source and references see MSDN .