Book Image

Visualforce Development Cookbook - Second Edition

By : Keir Bowden
Book Image

Visualforce Development Cookbook - Second Edition

By: Keir Bowden

Overview of this book

Visualforce is a framework that allows developers to build sophisticated, custom user interfaces that can be hosted natively on the Force.com platform. The Visualforce framework includes a tag-based markup language, similar to HTML that is used to write the Visualforce pages and a set of controllers that are used to write business logic to the Visualforce pages. Visualforce Development Cookbook provides solutions to a variety of challenges faced by Salesforce developers and demonstrates how easy it is to build rich, interactive pages using Visualforce. Whether you are looking to make a minor addition to the standard page functionality or override it completely, this book will provide you with the help you require throughout. You will start by learning about the simple utilities and will build up to more advanced techniques for data visualization and to reuse functionality. You will learn how to perform various tasks such as creating multiple records from a single page, visualizing data as charts, using JavaScript to enhance client-side functionality, building a public website, and making data available to a mobile device. With an interesting chapter on tackling common issues faced while developing Visualforce pages, the book provides lots of practical examples to enhance and extend your Salesforce user interface.
Table of Contents (16 chapters)
Visualforce Development Cookbook - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Introduction


JavaScript is used on a huge number of websites to add visual effects, validation, server interaction, and many more features. As JavaScript executes on the client side, it removes the latency involved with a round trip to the web server, resulting in more responsive applications and an improved user experience. JavaScript can also provide functionality that is not possible using HTML and server-side processing, for example, handling individual key clicks or mouse movements.

Visualforce has built-in capability to allow JavaScript interaction with the page controller. For example, the <apex:actionSupport /> component allows controller action methods to be called in response to JavaScript events, while the <apex:actionFunction /> component generates a JavaScript function that encapsulates a controller action method. Furthermore, many components provide the on<event> attributes, such as onclick and onchange, to allow custom JavaScript to be invoked in response...