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Visualforce Developer's Guide by W.A.Chamil Madusanka

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Chapter 2. Controllers and Extensions

A set of instructions that can react on the user's interaction with Visualforce markup (for example, a button click or a link click) is called as a controller. A controller can control the behavior of a page and it can be used to access the data which should be displayed on the page.

This chapter will introduce you to a few types of controllers and extensions that can be used for Visualforce pages. We will learn the types of controllers with examples.

This chapter covers the following topics:

  • Standard controllers
  • Standard list controllers
  • Custom controllers and controller extensions
  • Working with large sets of data on a Visualforce page
  • Order of execution of a Visualforce page
  • Validation rules and standard controllers ...

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