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Using ancestors and descendants – PB Docs 150 – PowerBuilder Library

Using ancestors and descendants – PB Docs 150

  2. Powerbuilder Documentation
  3. Powerbuilder Documentation Older
  4. Powerbuilder Documentation 15.0
  5. Using ancestors and descendants – PB Docs 150

Using ancestors and descendants

Descendent objects

In PowerBuilder, an object class can be inherited from another
class. The inherited or descendent object has all the instance variables,
events, and functions of the ancestor. You can augment the descendant
by adding more variables, events, and functions. If you change the
ancestor, even after editing the descendant, the descendant incorporates
the changes.

Instantiating

When you instantiate a descendent object, PowerBuilder also
instantiates all its ancestor classes. You do not have programmatic
access to these ancestor instances, except in a few limited ways,
such as when you use the scope operator to access an ancestor version
of a function or event script.

Document get from Powerbuilder help
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Powerbuilder Documentation 15.0
and Functions Events Objects and Controls PB Docs 150 PowerBuilder .NET Powerbuilder Documentation Powerbuilder Documentation 15.0 Powerbuilder Documentation Older PowerBuilder Extension Reference PowerBuilder New Features 15.0 PowerDesigner Integration System Object Properties Using the ADO.NET Interface
August 19, 2023
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