preventing events from propagating to obscured panel?

[Alan Gray]

I have a panel that pops up on top of another panel. Mouse events are still getting generated for the panel "underneath". I've tried a couple of newb things without success: I tried to put a collider on the pop-up background Sprite, tried changing the depth of the two panels, and even tried to add an event-eater script to the pop-up background Sprite. And I searched the forum and didn't find anything.

What's the proper way to keep events from propagating through to an obscured panel?

[ArenMook]

Generally you will want to have a collider that covers your entire window's background, with buttons sitting on top of it. Each "active" panel should also be offset on the transform's Z position so that it's in front of inactive ones.

[Alan Gray]

It's working nicely now. My problem was a combination of some bad z values of the underlying widgets and a zero size collision box on the pop-up. 
Thanks for the response. It let me know that I was on the right track.