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In Visualforce, a standard controller is a pre-built Apex controller provided by Salesforce that allows developers to work with standard database objects (such as records from Salesforce objects like Account, Contact, Opportunity, etc.) without having to write custom Apex code. Standard controllers provide basic CRUD (Create, Read, Update, Delete) operations and other standard functionality for interacting with these objects in Visualforce pages. When using a standard controller in Visualforce, you can directly reference fields and perform operations like saving records without explicitly writing Apex code. Standard controllers also handle security and access permissions automatically, ensuring that users only have access to the records they are authorized to view or modify. Here's a basic example of using a standard controller in Visualforce: <apex:page standardController="Account">     <apex:form>         <apex:inputField value="{!Account.N...

Standard List Controllers in Visualforce provide developers with a way to display lists of records from standard or custom Salesforce objects without the need for writing Apex code explicitly. These controllers come pre-built with basic functionality for navigating, filtering, and working with collections of records. Here are some key points about Standard List Controllers: Built-in CRUD Operations: Standard List Controllers provide basic CRUD operations (Create, Read, Update, Delete) out-of-the-box, allowing users to view, edit, and delete records directly from Visualforce pages without writing custom Apex code. Automatic Pagination: When displaying a large set of records, Standard List Controllers automatically handle pagination, splitting the records into manageable chunks and providing navigation controls for users to navigate between pages. Sorting and Filtering: Standard List Controllers offer built-in support for sorting and filtering records based on various criteria, such as f...

Developers can use Visualforce pages to: Override standard buttons, such as the New button for accounts, or the Edit button for contacts Override tab overview pages, such as the Accounts tab home page Define custom tabs Embed components in detail page layouts Create dashboard components or custom help pages Customize, extend, or integrate the sidebars in the Salesforce console (custom console components) Add navigation menu items and actions in the Salesforce mobile app

A Visualforce controller is a set of instructions for what happens when a user interacts with components specified in associated Visualforce markup. One type of interaction is when a user clicks a button or link. Controllers also provide access to the data displayed in a page, and can modify component behavior. A developer can either use a standard controller provided by Lightning Platform, or add custom controller logic with a class written in Apex: A standard controller consists of the same functionality and logic that is used for a standard Salesforce page. For example, if you use the standard Accounts controller, clicking a Save button in a Visualforce page results in the same behavior as clicking Save on a standard Account edit page. If you use a standard controller on a page and the user doesn't have access to the object, the page displays an insufficient privileges error message. Resolve this error by checking the user's accessibility for an object and displaying compo...

All Visualforce pages run entirely on the Lightning platform, both when a developer creates the page, and when an end user requests a page, as shown in the following architecture diagrams. Visualforce System Architecture - Development Mode   When a developer finishes writing a Visualforce page and saves it to the platform, the platform application server attempts to compile the markup into an abstract set of instructions that can be understood by the Visualforce renderer. If compilation generates errors, the save is aborted and the errors are returned to the developer. Otherwise, the instructions are saved to the metadata repository and sent to the Visualforce renderer. The renderer turns the instructions into HTML and then refreshes the developer's view, thereby providing instantaneous feedback to the developer for whatever changes were made in the markup. The architecture diagram below shows the process flow when a non-developer user requests a Visualforce page. Because the page ...

Visualforce Page is a framework that allows developers to create custom user interfaces for applications hosted on the Salesforce platform. A Visualforce page is a markup language that defines the layout and behavior of a web page within the Salesforce environment. Here are some key points about Visualforce pages: Custom User Interfaces: Visualforce pages allow developers to create custom user interfaces using a combination of HTML, CSS, and a tag-based markup language specific to Salesforce. Integration with Apex: Visualforce pages can be integrated with Apex, Salesforce's proprietary programming language. This allows developers to create dynamic and interactive pages by incorporating server-side logic. Data Binding: Visualforce pages can bind to Salesforce data, enabling developers to display, manipulate, and interact with data from Salesforce objects such as accounts, contacts, leads, and custom objects. Component-Based Architecture: Visualforce follows a component-based archite...

What is Visualforce? Visualforce is a web development framework that enables developers to build sophisticated, custom user interfaces for mobile and desktop apps that can be hosted on the Lightning Platform. You can use Visualforce to build apps that align with the styling of Lightning Experience, as well as your own completely custom interface. Visualforce enables developers to extend Salesforce’s built-in features, replace them with new functionality, and build completely new apps. Use powerful built-in standard controller features, or write your own custom business logic in Apex. You can build functionality for your own organization, or create apps for sale in the AppExchange. Visualforce app development is familiar to anyone who has built web apps. Developers create Visualforce pages by composing components, HTML, and optional styling elements. Visualforce can integrate with any standard web technology or JavaScript framework to allow for a more animated and rich user interface. E...