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this post was submitted on 23 Aug 2023
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Programming
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To clarify for OP, the only time you need this at all is when the object has a reference to something that the garbage collector won't dispose of naturally. Things like an open file stream, db connection, etc.
You won't need to dispose of an object you created if it just has properties and methods
Circular references can also impede garbage collection, don't forget.
And to further clarify, a proper object wrapping a resource like the ones you listed will release them when it is eventually collected, in the finalizer/destructor. However, you can't know when that will happen, so we have IDisposable.Dispose() which can be used to release whatever critical resources the object is holding right away. :)
This is very wrong. Circular references are no problem for the garbage collector at all (https://stackoverflow.com/questions/8840567/garbage-collector-and-circular-reference). You basically don't need to worry about manual memory management at all, if you're only dealing with managed code.
I was specifically thinking of circular event handler references, which I know was a thing at some point in the past. If .Net has improved since then, great.