Using nonvisual parts
In this section, you learn how to use VA Smalltalk nonvisual parts. We will extend the RoadRaceView visual part created in Creating reusable parts to make use of these additional VA Smalltalk features.
The following nonvisual parts are grouped in the Models category of the parts palette:
  Models iconModels Category
Ordered Collection icon     Ordered Collection
Provides a part that contains an ordered group of related objects
Object Factory icon     Object Factory
Provides a part that can dynamically create new instances of a specified part
Variable icon     Variable
Provides a part whose particular instance can vary with time
View Wrapper icon     View Wrapper
Provides a part in this visual part that represents another visual part.
Last modified date: 06/11/2018