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The relational model

The relational model Related data is contained in a database. This related data may encompass a single application, such as the inventory management system for a retail store, or for a whole company, such as the accounting, sales, product
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Adding HTML Help toYour Applications


Adding HTML Help toYour Applications Online help has become pretty much a given these days. The previous version of Windows Help, WinHelp, was tough to implement and not that useful. The new version, HTML Help, is wonderful. In this chapter,
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A Visual Basic Primer for Visual FoxPro Developers


A Visual Basic Primer for Visual FoxPro Developers Let’s face it. As you saw from Chapter 28 on ADO, you’re going to have to get acquainted with Visual Basic one of these days. In this chapter, I’m going tackle VB from a Fox developer’s point
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Working with data


Working with data That dimwitted fellow in the carnival midway has been patiently waiting for another command to work with the table he’s got in his hand, and now is his chance. There are many times that you’ll want to move the record pointer
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The Coverage Profiler


The Coverage Profiler The rest of the tools and ideas covered in this section have had to do with writing applications. This chapter covers the only tool that helps you with the next part—testing. There are several key processes you can perfo
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An Introduction to ADO


An Introduction to ADO ADO, short for ActiveX Data Objects, and an associated technology, OLE DB, are the current incarnations of Microsoft’s data access technology. Visual FoxPro developers, having a blindingly fast native data engine and e
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Visual FoxPro’s data structures

Visual FoxPro’s data structures Visual FoxPro traces its heritage to the late 1970s, when an engineer named C. Wayne Ratliff created a program to help him manage football pool statistics at work. The fundamental data structure in his fledglin
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Building Forms


Building Forms The form is where the action is. Most applications need to interact with a user at some point in time, and the form is usually where they do it. In this chapter, I’ll discuss the VFP Form Designer, how to create and run simple f
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Building Menus


Building Menus Well-designed Windows applications use a menu to provide access to the functions of the system. These menus take one of two forms: the new-style “toolbar” menu, used by 2000-era tools such as Office 2000, and the traditional men
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Distributing Your ApplicationsWith the VFP Setup Wizard


Distributing Your ApplicationsWith the VFP Setup Wizard An application isn’t much good if it never gets to the users. In the olden days, distribution was the easy part—you copied a bunch of files from your distribution machine onto a floppy di
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Weird Question Time


Weird Question Time The current pitch coming from Microsoft’s app dev groups is “Windows DNA”—an architecture for creating and deploying distributed applications across multiple computers of various platforms. You can read all about it elsewh
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Creating Programs

Creating Programs Because an application, in its barest form, is just a program, it’s appropriate to begin by creating programs. In this chapter, I’ll discuss the Visual FoxPro editor, how to create and run a program, and how to customize the
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Building a LAN Application

Building a LAN Application So now you’ve got a menu. You can run that menu and select the various menu options, and generally nothing happens—unless, of course, you find one that generates an error. This is technically sound but functionally u
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Your First LAN Application: Odds and Ends

Your First LAN Application: Odds and Ends As with many types of construction, you can break a job down into two parts. The first part takes 90% of your time, and the last 10% of the job takes another 90% of your time. In this chapter, I’ll
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Including ActiveX ControlsIn Your Application


Including ActiveX ControlsIn Your Application As hard as it’s going to be to believe, there will be times when you just can’t get Visual FoxPro to do something on its own. Instead of just throwing up your hands and disappointing your customer
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The Component Gallery


The Component Gallery When a couple of good friends get together to play any type of one-on-one sport, such as tennis or racquetball, it’s inevitable that a number of close shots won’t quite make it—like the service return that hits the clay j
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Output: The Report and Label Designers

Output: The Report and Label Designers I wish I had a nickel for every time I’ve repeated the adage that people generally don’t put data into an application simply to have it there—they eventually want it back out at some point. And that’s th
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Working with Visual FoxPro interactively


Working with Visual FoxPro interactively Everything I’ll discuss in this chapter can be tried using the Command window—and I urge you to open VFP and play along. First, I’ll explain how to use the Command window interactively. Using the Co
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Building commands, functions, and expressions

Building commands, functions, and expressions Now that you’re comfortable entering and executing commands in the Command window, it’s time to look at how commands, functions, and expressions are built in VFP. Commands A command is a st
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Project Hooks

Project Hooks For the most part, the design surfaces that Visual FoxPro makes available to a developer provide fixed functionality—you gets what you gets, and nothing more. If you want additional functionality to, say, the Form Designer, you
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