Why is the event bubbling and why not subscribe directly to the click event?

Question

I looked through an article about event bubbles in asp.net and found out that although it is possible to subscribe to the click event of a user’s control button from the containing page, "this will break the part of the object-oriented encapsulation rules object." The best idea is to publish the event in a user control to allow any interested parties to handle the event.

My question is, how exactly does a direct subscription to the button click event from the contained page violate object-oriented encapsulation rules?

Apologizes if his dumb question .: |

Thank!

Answer 1

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, UserControl v1.1 btnSubmit SubmissionButton, .

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Answer 2

, . click, ImageButton, LinkButton ..

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