Is it possible to “await yield return DoSomethingAsync()”

Question

Are regular iterator blocks (i.e. \"yield return\") incompatible with \"async\" and \"await\"?

This gives a good idea of what I\'m trying to do:

asyn         


        

Answer 1

This solution works as expected. Note the await Task.Run(() => enumerator.MoveNext()) part.

using (var enumerator = myEnumerable.GetEnumerator())
{
    while (true)
    {
        if (enumerator.Current != null)
        {
            //TODO: do something with enumerator.Current
        }

        var enumeratorClone = monitorsEnumerator;
        var hasNext = await Task.Run(() => enumeratorClone.MoveNext());
        if (!hasNext)
        {
            break;
        }
    }
}