Is there any benefit to implementing IDisposable on classes which do not have resources?

Question

In C#, if a class, such as a manager class, does not have resources, is there any benefit to having it : IDisposable?

Simple example:

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Answer 1

There one more reason that no one mentioned (though it's debateful if it really worth it): The convension says that if someone uses a class that implement IDisposable, it must call its Dispose method (either explicitly or via the 'using' statement). But what happens if V1 of a class (in your public API) didn't need IDisposable, but V2 does? Technically it doesn't break backward compatibility to add an interface to a class, but because of that convension, it is! Because old clients of your code won't call its Dispose method and may cause resources to not get freed. The (almost) only way to avoid it is to implement IDisposable in any case you suspect that you'll need it in the future, to make sure that your clients always call your Dispose method, that some day may be really needed. The other (and probably better) way is to implemet the lambda pattern mentioned by JaredPar above in the V2 of the API.