gistfile1.txt

BlockingCollection<Page> _jobs = new BlockingCollection<Page>();
var tasks = new ConsumerStarter().StartAsyncConsumers(_threadCount, _cancellationToken, DownloadPage);
for (var i = 0; i < _pageCount; i++)
{
    _jobs.Add(new Page { PageId = pageIds[i], PageNumber = Path.GetFileNameWithoutExtension(pages[i]), FileName = pages[i] });
}

_jobs.CompleteAdding();
Task.WaitAll(tasks.ToArray(), _cancellationToken);

private void DownloadPage()
{
  .....
}