Visual Programming User Guide : Introduction to Visual Programming : Validating user input : Creating your own data types : Inheriting from existing data types
Inheriting from existing data types
When you create your own data types, try to inherit from the data types that VA Smalltalk provides. This way, the code you write is simpler, because you don't have to check for all the error conditions that VA Smalltalk already checks for. You can inherit from any of the following VA Smalltalk classes:
Data type
Class
Boolean
AbtBooleanConverter
Character
AbtCharacterConverter
Date
AbtDateConverter
DBCS Only
AbtDbStringOnlyConverter
Decimal
AbtDecimalConverter
Float
AbtFloatingPointRepresentationConverter
Integer
AbtIntegerConverter
Monetary Amount
AbtMonetaryAmountConverter
Number
AbtNumberConverter
Social Security Number
AbtSSNConverter
String
AbtStringConverter
Time
AbtTimeConverter
Timestamp
AbtTimestampConverter
USA State
AbtUSAStateConverter
Zip Code
AbtZipCodeConverter
 
Last modified date: 05/14/2020