The LA Fox Developer Newsletter

March 1996

Death of FoxPro (Con’t from page 7)

Developers Toolkit Beta exam #71-69 is being delivered world-

wide through March 7, 1996. Successful passing of this beta

exam applies toward elective credit for the Microsoft Solution

Developer certification.

7. Visual C++ or MSDN Subscribers? Address Book

Changes

The addresses and phone numbers for Visual C++ and MSDN

Subscribers have changed. Please use this new contact

information if you have questions about these programs:

MSDN

P0 Box 5549

Pleasanton, CA 94566-1549

Phone: 800-759-5474 Fax: 510-275-0762

Visual C++

P0 Box 5479

Pleasanton, CA 94566-1407

Phone: 800-719-5577 Fax: 510-275-0762

Street Address (in case you want to send something via

overnight mail regarding either MSDN or VC++) 2440 Camino

Ramon, Ste. 200, San Ramon, CA 94583.

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Hot Tip

VFP Combo Boxes

by Michael Meer

Last week, I was in Nevada working on a project. Everything

was going great except that the comboboxes were not respond-

ing to the valid events I had put in them. It was strange... If I

dropped down the list, the valid event would fire and thus the

system could control the data. However, if I typed in a few

characters, found the line I wanted and then hit [enter], the

combobox valid event didn’t fire. Worse, if the box was empty

and I had a valid event preventing empties, I could bypass the

valid event by using the mouse or the tab key.

It turns out that the comboboxes valid events are not fired when

the user exits the object with a mouse click or the tab key.

So... How do you get around this problem? Easy, you just “tire”

the valid event from the lost focus event. The only downside of

this technique is that if the valid event is complex, it will get

executed twice. Below is the example code. Note the use of

NODEFAULT in the lost focus method. This code prevents the

user from moving to the next object.

Valid Method

RETURN (NOT EMPTY(THIS.value))

Lost Focus Method

LOCAL lreturn

Ireturn = THIS.valld()

IF NOT lreturn

Message here

NODEFAULT

ENDIF

RETURN Ireturn

It Can’t Get Any Easier.......

We’ve come up with an easy way to submit articles to the LA

Fox Developer Newsletter one that has been overlooked for

a long time.

You can submit your articles to Barry Lee at CIS# 72723,3422

on Compuserve.

These articles can be on any FoxPro-related topic, whether it

concerns a new technique you’ve discovered, a certain develop-

ment technique you may favor over others, book reviews, etc.

Editor reserves the right to edit or offer constructive comments

concerning submitted articles and accepted articles shall be

considered to be in the public domain.

The quality of this newsletter really depends on the members

that support it, not just read it. And I think we’d all be surprised

by the useful information that could be circulated around the

membership.

So..

How ‘bout it?

Help Wanted

MicrocomputerEngineering Services, LLC (MES), special-

izes in highly-customized mission critical software. We are

looking for experienced, cost-effective FPW2.6NFP devel-

opers who are able to work with minimum supervision after

an initial train-ing period. Initial training period would be at

our offices in Huntington Beach. We are looking for people

with 25-40 available hours per week. Contact us via

CompuServe (CIS# 72723,3422 or

72723.3422@compuserve.com) or by faxing us you resume

at 714/375-3302.

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