Is GC.SuppressFinalize guaranteed?

Question

My observation in practice has been that GC.SuppressFinalize does not always suppress the call to the finalizer. It could be that the finalizer gets called nontheless. I won

Answer 1

I throw an InvalidOperationException in the finalizer which makes it easy to find types which haven't been disposed properly. When Dispose() is called where GC.SuppressFinalize is invoked, I never get an exception.