About this task
You can inject Intializer, Validator, Foramtter and Action to
the XML UI Widgets as needed.
- Action is to handle the user operation event.
- Intializer is to initialize the widgets.
- Validator is to validate the user inputs. There are two types of Validator:
before-validator and after-validator. XML UI Engine also provides some pre-built
Validators: Numeric Validator, Alphabet Validator, Alpha Numeric Validator
and Date Validator.
- Formatter is to format the user's input to the format of under layer data
model. XML UI Engine provides three pre-build Formaters: Numeric Formatter,
Currency Formatter, and Date Formatter.
For more information about how to implement the provided
extension, see the following: