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

Customizing a chart


Visualforce charts are highly customizable; colors, markers, line widths, highlighting, legends, labels, and more are under the control of the developer.

In this recipe, we will create a Visualforce page containing a bar chart displaying the total value of won opportunities per month for the last year.

The chart will be customized to display horizontal bars in a custom dark blue color that do not highlight when the user hovers over a bar. Finally, a legend will be displayed to show the user what the bars represent.

Getting ready

This recipe relies on the custom controller from the Creating a bar chart recipe in this chapter. If you have already completed that recipe, you can skip this section.

  1. Navigate to the Apex Classes setup page by clicking on Your Name | Setup | Develop | Apex Classes.

  2. Click on the New button.

  3. Paste the contents of the BarChartController.cls Apex class from the code download into the Apex Class area.

  4. Click on the Save button.

How to do it...

  1. Navigate to the...