Book Image

Visualforce Development Cookbook

By : Keir Bowden
Book Image

Visualforce Development Cookbook

By: Keir Bowden

Overview of this book

Visualforce, in conjunction with Apex, makes it easy to develop sophisticated, custom UIs for Force.com desktop and mobile apps without having to write thousands of lines of code and markup. The "Dynamic Binding" feature of Visualforce lets you develop generic Visualforce pages to display information related to the records without necessarily knowing which data fields to show. This is accomplished through a formula-like syntax, which makes it simple to manage even a complex hierarchy of records. "Visualforce Development Cookbook" provides solutions for 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 required help throughout. "Visualforce Development Cookbook" starts with explaining the simple utilities and builds up to advanced techniques for data visualization and reuse of functionality. This book contains recipes that cover various topics like 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. "Visualforce Development Cookbook" provides lots of practical examples to enhance and extend the Salesforce user interface.
Table of Contents (16 chapters)
Visualforce Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Adding multiple series


In the previous recipes in this chapter, each chart contained a single series. Visualforce charts are not limited to this and can plot multiple sets of data, regardless of whether there is a relationship between the data sets.

In this recipe we will create a Visualforce page containing a chart that plots two series against the month for the last year. The first is a bar series of the number of opportunities lost in the month, while the second is a line series of the number of opportunities won in the month. This allows a sales director to see if the won/lost ratio is improving over time.

Getting ready

This recipe makes use of a custom controller, so this must be present before the Visualforce page can be created.

How to do it…

  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 MultiSeriesChartController.cls Apex class from the code download into the Apex Class area.

  4. Click on...