Hook: Adding Items To Container - Button

Requirement

A data container's contents is displayed as a single table, and the ability to add items is needed.

Method of Adaptation

Enable Feature

Level of Support

Parameter Pattern

HotSpot

Standard User Interaction for Data Management

Hooks used

Define New Strategy For Add Or Remove Button

Participants

SingleTableFormSheet, formSheet , AbstractAddCatalogItemStrategy, NewStrategy , FormSheetContentCreator, NewContentCreator

Changes

1. instance formSheet of SingleTableFormSheet.
2. if formSheet displays Catalog's contents:
1. subclass NewStrategy of AbstractAddCatalogItemStrategy.
2. NewStrategy.createCatalogItem implements AbstractAddCatalogItemStrategy.createCatalogItem .
3. else:
1. NewStrategy = Define New Strategy For Add Or Remove Button [NewStrategy].
4. subclass NewContentCreator Of FormSheetContentCreator.
5. NewContentCreator.createFormSheetContents overrides FormSheetContentCreator.createFormSheetContents :
1. call formSheet.addAddButton with parameter instance of NewStrategy.

Constraints

• This hook may only be invoked from the Display Contents Of Container hook.

Comments

• By overriding other methods in AbstractAddCatalogItemStrategy you can customize the CatalogItem's add sub-process.
• If there are both, an add and a remove button, you can also use data.stdforms.SingleTableFormSheet.addEditingButtons .