How does .Dispose() work in C#?

Possible Duplicate:
Proper use of the IDisposable interface
When is Dispose necessary?

If I write a class, which uses graphics, or threads for example, must I implement the IDisposable interface to write a Dispose() method or else memory leak occurs? Does Dipose() run when the GC reaches it? If I implement a Dispose() method, shall I call Dispose() on all the disposable fields in the class when "disposing" parameter is true, or is it automatic? What is "unmanaged resource"?

So I'm pretty unsure about it, I'd appreciate anything that helps me understand these things :) Thank You

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IDisposable is just a pattern to follow. It doesn't do anything, in and of itself, special (other than fitting the requirements of the using statement).

If you're working with a native resource, the resource isn't "known" to the garbage collector. IDisposable is the convention used to allow you to free this resource deterministically.

For details, I wrote a detailed series on IDisposable which talks about why and how to implement it for various scenarios (including wrapping a native resource, encapsulating other IDispsable types, etc).

链接地址: http://www.djcxy.com/p/54478.html

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