November2000

The LA Fox Developer Newsletter

The LA Fox Developer is the monthly newsletter of the LA Fox Developers Group. The purpose is information sharing among application developers and users working with FoxPro.

Huntington Beach, CA 92615-6624

LA Fox Board of Directors

Barry R. Lee, President/Newsletter Ethtor

Bill Anderson, Vice President/Programs

Twila Miller, Treasurer/Membership

LA Fox is the oldest FoxPro developers group in Southern California. The newsletter contains regular columns as well as articles from other user groups.

2210 Wilshire Blvd. - #161

Santa Monica, CA 90403

OC FoxPro Developers Group

Membership/Subscription

The annual membership fee for tne LA I-ox Develop ers Group, including subscription to The LA Fox Developer Newsletter, is $48.

Neither the LA Fox User Group, the XPro User Group, the OC FoxPro Developers Group, their officers or board of directors or their members make any express or implied warranties of any kind with regard to any information disseminated, including, but not limited to, warranties of merchantability and! or fitness for a particular purpose.

Opinions provided by newsletter articles, or by speakers, members, or guests who address the meetings, are individual opinions only, and do not necessarily represent the opinions of the group. All opinions and information should be carefully considered, and the group is not liable for any incident or consequential damages in connection with, or arising out of, the furnishing or use of any information or opinions. Brand names and product names may be trademarks or registered trademarks of their respective owners.

Out and About (Con’t from Page 1)

May 13-16, 2001, VS Connections, Orlando, FL. This is the conference that broke new ground last Spring in New Orleans. As usual, there will be more than one conference going on and you’ll be free to drop in on any of the sessions in any of the conferences. Register for one.. .attend 2 or 3. Complete details will be available later on this month at http:// www.devconnections.com.

Since We Last Met.....

Well, it was a good, long run. But the time has come for me to hang up my hat, kick off my shoes, and relax a bit. After almost six years of doing this, I’ll be stepping down as President effective January 1, 2001. In the amount of time I’ve been in this position, LA Fox has gone from a local FoxPro “watering hole” to a nationally-recognized group featuring nationally- recognized speakers; the newsletter has become a 10-page staple every month that gets circulated all over the country; LA Fox has its own award- winning website. I don’t and won’t presume to take credit for any of this. I’ve had a lot of support along the way from every corner of the FoxPro community, as well as the LA Fox Board of Directors I’ve been so proud to be associated with. That’s why it’s so important to fill out the “Membership Survey” on page 7. Whoever steps into this position will need the same guidance and support I had when I was new to all of this. Since I won’t be vanishing off the face of the earth any time soon, I’ll still be around to lend whatever support or guidance I can. I’m deeply grateful to everyone for their support over the years and I can’t help but feel that our collective lives have all been changed or affected by this experience.

“NET” (Con’t from page 7)

Data. Developers use a DataNavigator for scrolling and editing an in- memory XmlDocument. DataNavigators are functionally equivalent to the W3C Document Object Model (DOM), but are more efficient and provide an object model that maps nicely to the relational data view. DataNavigators support XPath syntax for navigating the data stream. ADO+ also provides an XMLDocument class for developers who want to continue to use the DOM as an object model for XML rather than the more efficient DataNavigator model.

Since all data can be viewed as XML, developers can take advantage of ADO+ transformation and validation services for any data. ADO+ defines a general transformation architecture that consumes a DataNavigator and produces a new XmlReader. The .NET Framework provides a specific transformation component that supports the W3C XSL Transformations (XSLT) specification. ADO+ also provides a validation engine that uses XML Schemas to validate an XmlReader. ADO+ supports schemas defined via DTDs, XSD, orXDR.

[Mary Kirtland is part of the MSDN Architecture team, where she helps create pra ctical guidance for developers who design applications using Microsoft technologies. She is the author of Designing Component-based Applications (Microsoft Press, 1998).)

(To be concluded next month...)