Bubbling up events .

Question

I have multiple layers in an application and i find myself having to bubble up events to the GUI layer for doing status bar changes, etc . . I find myself having to write re

Answer 1

Unless I see a bit more of the design.. it'll be hard to give a good answer.

WPF does bubble events up (automatically) the UI Component/Control tree... this has now been built into the framework. So I guess that's the recommended way :)

The trouble with bypassing the middle man Layer2 is that Layer1 and Layer3 now know each other... are coupled. So its a tradeoff.. if you are okay with the coupling.. eliminate the middle man / invent a specialized component with this responsibility. However if you expect Layer 3 to be hot-swappable (low coupling), I'd say continue bubbling.