[noblethrasher]

Avoiding using/IDisposable is taste thing; I'm not saying that anyone else should do it.

If called from the `foreach` statement, the code in a finally block of an iterator is guaranteed to execute even if the loop exits early due to a `break` or exception. The compiler will also generate a call to Dispose() as well.

Also, it's not really an abuse. When dealing with an unmanaged resource, you're almost always either pulling a stream of data out or pushing a stream of data in. That's precisely the use case of IEnumerable and its dual, IObservable (SqlCommandEx is an example of IEnumerable and FileEx is a loose example of IObservable).

P.S. Now there might be a thus far undiscovered bug in my SqlCommandEx code to which I linked (e.g. the compiler only generates calls to Dispose() on IEnumerator<T> which might not work for dynamic types, I haven't checked) but it's possible to do what I described in principle.