Sams Teach Yourself Visual Basic 6 in 24 Hours

By Greg Perry

• Table of Contents
  • Copyright
  • About the Author
  • Acknowledgments
  • Introduction
  • Who Should Read This Book
  • What This Book Will Do for You
  • Can This Book Really Teach Visual Basic in 24 Hours?
  • What You Need
  • Files on the Visual Basic Distribution CD-ROM
  • Conventions Used in This Book
  • Enough! Time Is Ticking!
  • Part I: Introducing Visual Basic
  • Hour 1. Visual Basic at Work
  • Hour 2.Analyzing Visual Basic Programs
  • Hour 3.Controls and Properties
  • Hour 4.Examining Labels, Buttons, and Text Boxes
  • Part II: Coding the Details
  • Hour 5.Putting Code into Visual Basic
  • Hour 6.Message and Input Boxes
  • Hour 7.Making Decisions
  • Hour 8.Visual Basic Looping
  • Part III:Putting Code to Work
  • Hour 9.Combining Code and Controls
  • Hour 10.List Boxes and Data Lists
    • The List Box Control
    • Combo Boxes
    • Data Arrays
    • Control Arrays
    • Summary
    • Q&A
    • Workshop
  • Hour 11.Additional Controls
  • Hour 12.Dialog Box Basics
  • Part IV:Programming with Data
  • Hour 13.Modular Programming
  • Hour 14.Built-In Functions Save Time
  • Hour 15.Visual Basic Database Basics
  • Hour 16.Printing with Visual Basic
  • Part V:Sprucing Up Programs
  • Hour 17.Menus and Visual Basic
  • Hour 18.The Graphic Image Controls
  • Hour 19.Toolbars and More Graphics
  • Hour 20.Writing Correct Applications
  • Part VI:Advancing Visual Basic Applications
  • Hour 21.Visual Basic and ActiveX
  • Hour 22.Object Basics
  • Hour 23.Distributing Your Applications
  • Hour 24.Online Visual Basic
  • Part VII:Appendixes
  • Appendix A.Operator Precedence
  • Appendix B.Answers
  • Appendix C.Using the CD-ROM

Q&A

1. When do I use a list box and when do I use a combo box?

   A list box presents a user with a list of items. The user can select from the list. The user cannot add new items to the list box. If you want to present a list of items to the user and let him enter new items, use a combo box. A combo box works a lot like a combination of a list box and a text box.

2. What's the difference between a combo drop-down list box and a regular list box?

   The only difference is that the drop-down list box remains closed until the user opens it. Therefore, the list box doesn't consume a lot of form space until the user is ready to see the values in the list. If your form contains lots of extra room, you might want to use a regular list box so your users can see more values at one time. If form space is tight, use a drop-down list box.

3. Should I use 0 or 1 for the starting array subscript?

   You can use either unless you've added the Option Base 1 statement to a module's general section, in which case your subscripts will have to begin at 1. If you don't use Option Base 1 and you ignore the 0 subscript, however, make sure you declare enough array elements to hold all your data. If you need 15 elements and you use 1 for the starting subscript, you must declare 16 values to access subscripts 1 through 15.

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