Visualforce Developer Guide

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Introducing Visualforce
Tools for Visualforce Development
Getting a Quick Start with Visualforce
Customizing the Appearance and Output of Visualforce Pages
Standard Controllers
Standard List Controllers
Custom Controllers and Controller Extensions
Advanced Examples
Override Buttons, Links, and Tabs with Visualforce
Using Static Resources
Creating and Using Custom Components
Dynamic Visualforce Bindings
Dynamic Visualforce Components
Integrate Email with Visualforce
Visualforce Charting
Visualforce Charting Limitations and Considerations
How Visualforce Charting Works
A Simple Charting Example
Providing Chart Data
Providing Chart Data via a Controller Method
Providing Chart Data Using a JavaScript Function
Providing Chart Data via a JavaScript Array
Chart Data Format
Building a Complex Chart with Visualforce Charting
Updating Charts with Refreshed Data
Controlling the Appearance of Charts
Creating Maps with Visualforce
Render Flows with Visualforce
Templating with Visualforce
Developing Salesforce Apps with Visualforce
Adding Visualforce to a Salesforce AppExchange App
Using JavaScript in Visualforce Pages
Communicating Across the DOM with Lightning Message Service
Visualforce Best Practices
Standard Visualforce Component Reference
Appendices
PDF

Chart Data Format

Data provided to a Visualforce chart must meet some specific requirements. Every element in the data collection must contain all fields referenced in the <apex:chart> component hierarchy that is bound to that data source. If all fields aren’t provided, a client-side JavaScript error is thrown, which you can view in a JavaScript console such as Firebug.

Chart data provided by an Apex method should be a List of uniform objects. These objects can be simple wrappers, sObjects, or AggregateResult objects. Data fields can be made accessible as public member variables or properties.

Chart data provided by JavaScript methods should be a JavaScript array of arrays. Each inner array represents a record or data point. Data fields are made accessible as name: value pairs. See Providing Chart Data via a JavaScript Array for an example.