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Do I need to be disposed of to unregister events?

Let's say I have two classes, and none of them are GUI components. Class A is a short-lived object that is logged for an event declared by long-lived object B. For example

public A(B b)
{
   b.ChangeEvent += OnChangeEvent;
}

If A never deregisters from a B event, will garbage be collected? Is a Dispose method required to exclude registration from event B?

There is also a second question. If A and B must live during the entire execution time of the application, is it necessary AAAAAAAAAAAAAB

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3 answers

: . B A. , A , B. , , . App.OnIdle.

: .

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, , IDisposable.Dispose A. . A finalizer/destructor, A - B, B, ; , , , .

, , , . , -, , . . , , . , , , , . "", , ; , .

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B A, A , B .

You do not need the Dispose method for this. If B has no references pointing to this, the garbage collector will be smart enough to dispose of both B and A.

If they are both alive for the life of the application, you do not need to unregister the event.

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