Should C# event handlers be exception safe?

Question

Assuming that one event has multiple handlers, if any of event handlers throw an exception then the remaining handlers are not executed.

Does this mean that event handle

Answer 1

You should NOT swallow exceptions in an event handler, but neither would I generally recommend throwing them. The problem is that there's generally no good place to catch exceptions thrown from within event handlers.

The design pattern of event handlers leads to some potential problems because they are both indirectly invoked and can be multicast. Since they are indirect, you have to be careful and plan where you can catch exceptions they may throw. Since they are multicast, an exception in a handler may result in other handler never receiving the event.