Yield Return with Null

Question

Is there any way to optionally return a null with a \"return yield\" driven iterator?

I would like to return a null in some cases and I don\'t think this is particul

Answer 1

There is no way to return a null IEnumerable from within an iterator method. You can return null values in the iterator but not a null IEnumerable

What you could do though is have a wrapper method which either returns null or calls to the real iterator

static IEnumerable GetItems() {
    if (false) {
        return GetItemsCore();
    }
    return null;
}

static IEnumerable GetItemsCore() {
    yield return "Andy";
    yield return "Jennifer";
}