April 2006
Beginner
1114 pages
98h 16m
English
Content preview from Programming Excel with VBA and .NETBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Modules Versus Classes
The main difference between the modules and classes is how you use them:
Code contained in modules can be used from formulas entered in cells.
Code stored in a class can respond to events that occur in Excel.
That distinction determines where you put your code—whether you create it in a module or a class. In general, put your code in a module if it performs a general-purpose task that you plan on reusing many different places. Put your code in a class if it responds to events or represents a visual component.
Those are just guidelines. The following two sections illustrate the differences more fully.
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