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Part V: Putting It All Together
appear in the Insert Function dialog box. Custom functions appear in the
User Defined category.
Function procedures defined with the Private keyword do not appear in the
Insert Function dialog box. Therefore, if you write a Function procedure that’s
designed to be used only by other VBA procedures (but not in formulas), you
should declare the function as Private.
Displaying the function’s description
The Insert Function dialog box displays a description of each built-in function.
But, as you can see in Figure 20-5, a custom function displays the following
text as its description: No help available.
Figure 20-5:
By default,
the Insert
Function
dialog box
does not
provide a
description
for custom
functions.
To display a meaningful description of your custom function in the Insert
Function dialog box, perform a few additional (nonintuitive) steps:
1. Activate a worksheet in the workbook that contains the custom
function.
2. Choose Developer➪Code➪Macros (or press Alt+F8).
The Macro dialog box appears.
3. In the Macro Name field, type the function’s name.
Note that the function does not appear in the list of macros; you must
type the name in.
4. Click the Options button.
The Macro Options dialog box appears.