This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I have not used net UI in the live environment, but did monkey around with pagination etc. I think a similar question was asked by some one when I played around with the API and I didnt find an answer.
I am not sure how many net UI experts we have here. Perhaps one of them can pop in here and answer your question