408 Part III Designing the User Interface
Your form looks similar to this:- Click the Display Record button.
Your program stores the first name and last name values in property settings and uses
the Age method to calculate the new employee’s current age. A message box displays the
result, as shown here:- Click OK to close the message box, and then experiment with a few different date
(^) values, clicking Display Record each time you change the Birth Date field.
- When you’re finished experimenting with your new class, click the Close button on
the form.
The development environment returns.
One Step Further: Inheriting a Base Class
As promised at the beginning of this chapter, I have one more trick to show you regarding
user-defined classes and inheritance. Just as forms can inherit form classes, they can also
inherit classes that you’ve defined by using the Add Class command and a class module.
The mechanism for inheriting a base (parent) class is to use the Inherits statement to
include the previously defined class in a new class. You can then add additional properties