public IEnumerable<PageData> GetPages()
{
    int totalNumberOfPages;

    var query = SearchClient.Instance.Search<PageData>()
                                .Take(1000);

    var batch = query.GetContentResult();
    foreach (var page in batch)
    {
        yield return page;
    }

    totalNumberOfPages = batch.TotalMatching;

    var nextBatchFrom = 1000;
    while (nextBatchFrom < totalNumberOfPages)
    {
        batch = query.Skip(nextBatchFrom).GetContentResult();
        foreach (var page in batch)
        {
            yield return page;
        }
        nextBatchFrom += 1000;
    }
}