Can a component define multiple events？For example, Table

[AndrewXiGua]

How do I define a Catalog for a custom table component with add and delete buttons？Currently, it seems that a Catalog action can only define one event name?

[selamw1]

In the A2UI concept, yes, a component can define and trigger multiple events. Although an individual Action schema definition in common_types.json defines a single event mapping (one name and context), a component is not restricted to having only one property of type Action.

You can handle a Table with "Add" and "Delete" buttons in two different ways:

1. The Composed Component Pattern (Standard Catalog): Building the table using existing layout and interactive components.

   • Instead of building a heavy, custom Table renderer, you can compose the table using standard A2UI components (Column, Row, Button, Text).
   • In this approach, each button has its own standard action property, which resolves the issue naturally without needing any custom schemas.

2. The Custom Component Pattern (Custom Catalog): Defining a new custom component with multiple Action properties in its JSON schema contract.

This is also a good reference guide on Handling User Actions incase you missed it.