Do I need to Dispose to deregister events?

Posted by Sean on Stack Overflow See other posts from Stack Overflow or by Sean
Published on 2010-04-13T14:23:53Z Indexed on 2010/04/13 14:32 UTC
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Filed under:

.NET

|

events

|

dispose

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c#

Say I have two classes, and neither of them are GUI components. Class A is a short lived object that registers for an event declared by a long lived object B. For example

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

If A never deregisters from B's event, will A never be garbage collected? Does A need a Dispose method just to deregister from B's event?

There is also a related second question. If A and B should both live for the entire execution time of the application, does A need to deregister?

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