Visualforce Developer Guide

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
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
Global Variables, Functions, and Expression Operators
Security Tips for Apex and Visualforce Development
Apex Classes Used in Visualforce Controllers
ApexPages Class
Action Class
Cookie Class
IdeaStandardController Class
IdeaStandardSetController Class
KnowledgeArticleVersionStandardController Class
Message Class
Message Constructors
Message(severity, summary)
Message(severity, summary, detail)
Message(severity, summary, detail, id)
Message Methods
PageReference Class
SelectOption Class
StandardController Class
StandardSetController Class
Execution Governors and Limits
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Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Message(severity, summary, detail, id)

Creates a new instance of the ApexPages.Message class using the specified severity, summary, detail, and component ID.

Signature

public Message(ApexPages.Severity severity, String summary, String detail, String id)

Parameters

  • severity: Type: ApexPages.Severity The severity of a Visualforce message.
  • summary: Type: String The summary Visualforce message.
  • detail: Type: String The detailed Visualforce message.
  • id: Type: String The ID of the Visualforce component to associate with the message, for example, a form field with an error.