Advanced PowerBuilder

HomePrevious Lesson: Visual User Objects
Next Lesson: Creating a Standard User Object

Class (Non-Visual User Objects)

This type of user object doesn't have a visual component�it only has functionality. For example, you could write a function DisplayErrorMessage(), and then call this function whenever you need it in your application.

Non-Visual user objects allow you to write business rules and perform other processing, which can be later on reused as many times as required. There are three types of non-visual user objects: Till version 4.0, they are called non-visual user objects and from v4.0 onwards this category is called Class.

HomePrevious Lesson: Visual User Objects
Next Lesson: Creating a Standard User Object