Excel 2019 Bible

(singke) #1

961


C H A P T E R


44


Creating UserForms


IN THIS CHAPTER


Understanding why you may want to create UserForms
Identifying UserForm alternatives
Creating UserForms: An overview
Looking at some UserForm examples
Finding more information on creating UserForms

Y


ou can’t use Excel very long without being exposed to dialog boxes. Excel, like most Windows
programs, uses dialog boxes to obtain information, clarify commands, and display messages. If
you develop VBA macros, you can create your own dialog boxes that work very much like those
that are built in to Excel. These dialog boxes are known as UserForms.

Understanding Why to Create UserForms


Some macros that you create behave the same every time that you execute them. For example, you
may develop a macro that enters a list of your sales regions into a worksheet range. This macro
always produces the same result and requires no additional user input. You may develop other mac-
ros, however, that perform differently under different circumstances or that offer options for the
user. In such cases, the macro may benefit from a custom dialog box.

The following is an example of a simple macro that makes each cell in the selected range uppercase
(but skips cells that have a formula). The procedure uses VBA’s built-in StrConv function:
Sub ChangeCase()
For Each cell In Selection
If Not cell.HasFormula Then
cell.Value = StrConv(cell.Value, vbUpperCase)
End If
Next Cell
End Sub

This macro is useful, but it can be improved. For example, the macro would be more helpful if
it could also change the cells to lowercase or proper case (only the first letter of each word is
uppercase). This modification is not difficult to make, but if you make this change to the macro,

Excel® 2019 Bible, First Edition. Michael Alexander, Dick Kusleika and John Walkenbach.
© 2019 John Wiley & Sons, Inc. Published 2019 by John Wiley & Sons, Inc.

Free download pdf