Excel VBA Programming For Dummies, 3rd Edition

Chapter 9

Using VBA and Worksheet Functions

In This Chapter

Using functions to make your VBA expressions more powerful

Using the VBA built-in functions

Using Excel worksheet functions in your VBA code

Writing custom functions

In previous chapters, I allude to the fact that you can use functions in your VBA expressions. There are three flavors of functions: those built into VBA (vanilla), those built into Excel (strawberry), and other functions written in VBA (chocolate). I provide a full and tasty explanation in this chapter. Functions can make your VBA code perform some powerful feats, with little or no programming effort required. If you like that idea, this chapter’s for you.

What Is a Function?

Except for a few people who think Excel is a word processor, all Excel users incorporate worksheet functions in their formulas. The most common worksheet function is the SUM function, and you have hundreds of others at your disposal.

A function essentially performs a calculation and returns a single value. The SUM function, of course, returns the sum of a range of values. The same holds ...