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In this part . . . This is the part of the book that you’ve been waiting for. In the next eight chapters, you find out about all the essential elements of Excel programming. And in the process, you see some illuminating examples that you can adapt to your own needs.
Chapter 7 Essential VBA Language Elements In This Chapter ▶ Knowing when, why, and how to use comments in your code ▶ Using variables and constants ▶ Telling VBA what type of data you’re using ▶ Knowing why you may need to use labels in your procedures Because VBA is a real, live programming language, it uses many elements common to all programming languages. In this chapter, I introduce you to several of these elements: comments, variables, constants, data types, arrays, and a few other goodies. If you’ve programmed with other languages, some of this material will be familiar. If you’re a programming newbie, it’s time to roll up your sleeves and get busy. Using Comments in Your VBA Code A comment is the simplest type of VBA statement. Because VBA ignores these statements, they can consist of anything you want. You can insert a comment to remind yourself why you did something or to clarify some particularly elegant code you wrote. Use comments liberally and extensively to describe what the code does (which isn’t always obvious by reading the code itself). Often, code that makes perfect sense today mystifies you tomorrow. Been there. Done that. You begin a comment with an apostrophe ('). VBA ignores any text that follows an apostrophe in a line of code. You can use a complete line for your comment or insert your comment at the end of a line of code. The following example shows a VBA procedure with three comments, although they’re not necessarily good comments:
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Making Everything Easier! Microsof
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Excel ® VBA Programming FOR DUMmIE
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