May I also suggest "The Visual FoxPro 3 Codebook" by Yair Alan Griver (Sybex) It has full-blown classes for handling the data environment that can be loaded onto a form in it's Init() method and from then on you can treat the data environment just the same as in a form instance. Much of the code in the book has become outdated (although it still provideds a wonderful example of how to build a framework) but the data environment classes and code are still as good as gold.