Understanding Show/Hide Events

What I’m trying to do:
I am trying to understand what is Show/hide events or how they works for components like textbox/labels etc.

What I’ve tried and what’s not working:
I think components like textbox/labels are added from design tab and it is always visible when the app is running. So even if i have added any code under show/hide event class, how to check whether it works or not.

These events are triggered whenever the object’s visible attribute is assigned a value.

To experiment, and see for yourself, you could establish a couple of buttons, one to set an object’s visible to True, and the other to False.

I was surprised to find that the show event was triggered whenever visible was set to True – including when it was already True.

Thanks @p.colbert, What are use cases of Hide event?

It depends on the intended logic of your App. For example, you might want to save a (changed) datum when it disappears from the screen.