Explains when custom code can run.

Compares events and when they are raised (after a transaction) with rules and when they are raised (within a transaction).

Demonstrates how to create a custom rule.

Describes events and demonstrates how to write custom code to run when an event occurs.

Demonstrates how to write an override to a method that runs when certain events occur.

Explains the steps that are used to add custom code for intercepting click events on icon decorators.

Describes how to use custom code to access and modify a domain model.