How to identify elements in Salesforce Lightning?
In salesforce lightning we can define local ids, which may or may not be unique, depending upon how you are defining that. We can also add some fixed prefix or suffix with salesforce generated global ids to uniquely identifying the elements. Excerpts from Salesforce Lightning Components Developers guide:
What can I do with user interface API in Salesforce?
In addition to building UI for Salesforce records, you can also use User Interface API to build UI for Salesforce actions, favorites, and list views. The best way to learn an API is to use it. Let's go! We’ve built two sample apps that use User Interface API to create, read, update, and delete records.
How do I display a Visualforce page in Salesforce lightning experience?
Visualforce pages that you added to the page layout appear under the Details tab. Only Visualforce pages with Available for Lightning Experience, Lightning Communities, and the mobile app enabled display in Lightning Experience on Lightning pages, utility bars, and the Salesforce app.
How do I use Salesforce Cors with JavaScript?
To allow access to supported Salesforce APIs, Apex REST resources, and Lightning Out from JavaScript code in a web browser, add the requesting origin to your Salesforce CORS allowlist. The response header contains an HTTP status code.
What is UI component in Salesforce?
User interface components such as ui:input and ui:output provide easy handling of common user interface events like keyboard and mouse interactions. Each component can be styled and extended accordingly.
How do you use rendered in lightning component?
In this blog we are going to learn about how to use renderer service in lightning component bundle. Renderer service in lightning component bundle modify the DOM elements which is created by framework for a component. We use custom renderer to change or override the default rendering behaviour of the component.
What is rendering in Salesforce lightning?
Each Lightning event triggers one or more actions that can update data. The updated data can fire more events. The rendering service tracks the stack of events that are fired. The framework rerenders all the components that own modified data by calling each component's rerender() method.
How do you render a component in LWC?
Enter the render() method In LWC this method doesn't do the actual rendering, but determines what template to use to render the component. There are a few simple points: We need to import the template into the JavaScript file. The call to return must return the imported variable.
What is rendered in Salesforce?
Rendered-This attribute is used to display a particular filed or section based on boolean value. ReRender- This is to reload some fields, or sections after some operation. Advantage of it is that the whole page is not refreshed and only a portion(the one which is ReRendered) is refreshed.
What is rendering in Aura component?
When a component is rendered or rerendered, the aura:valueRender event, also known as the render event, is fired. Handle this event to perform post-processing on the DOM or react to component rendering or rerendering. The event is preferred and easier to use than the alternative of creating a custom renderer.
What is DOM in LWC?
Shadow DOM is a standard that encapsulates the internal document object model (DOM) structure of a web component. Encapsulating the DOM gives developers the ability to share a component and protect the component from being manipulated by arbitrary HTML, CSS, and JavaScript.
What is renderedCallback in LWC?
From the documentation, we know that renderedCallback method is called when component is completely rendered and it can be called multiple times. So if we want to perform any operation after rendering, we would put that code inside renderedCallback.
What is SVG in lightning component?
SVG (Scalable Vector Graphics) is an XML-based image format that lets you define lines, curves, shapes, and text.
What is @wire in LWC?
Lightning web components(LWC) use a reactive wire service, which is built on Lightning Data Service. Components use @wire in their JavaScript class to read data from one of the wire adapters in the lightning/ui*Api modules and also to call the apex controller server-side methods using wire services.
What is conditional rendering in LWC?
If we want to hide some of the components from the HTML and show it based on conditions then we can use conditional rendering. To render a DOM element in a template only when certain conditions are met, we use conditional rendering.
What are lifecycle hooks in LWC?
A lifecycle hook is a callback method triggered at a specific phase of a component instance's lifecycle. Lightning web components have a lifecycle managed by the framework. The framework creates components, inserts them into the DOM, renders them, and removes them from the DOM.
Can Salesforce be used offline?
With Salesforce app caching and Offline Edit, Salesforce for Android and Salesforce for iOS users can work with many of their frequently accessed objects and records while offline. Here’s the list of data and Salesforce app user interface elements that are available offline.
Can you view recently accessed records in Salesforce?
Yes, recently accessed records for the first five objects (excluding Files) in the Recent section of the Salesforce app navigation menu. Yes, recently accessed records for the first five objects (excluding Files) in the Recent section of the Salesforce app navigation menu. Records for Other Objects. If viewed in current session.
Where do report charts appear in Lightning?
Report charts that you add to a page layout appear under the Details tab in Lightning Experience. When you add a report chart to a page layout, it can take a few moments before the chart appears on Lightning record pages.
Can you remove fields in Lightning Experience?
The top-down tab-key order, which allows users viewing a record detail page to move through a column of fields from top to bottom before moving focus to the top of the next column of fields, isn’t supported in Lightning Experience.
Can you edit a page layout in org?
If your org supports multiple page layouts, you can create a page layout from the Page Layouts related list on any object in the Object Manager. You can also edit or delete an object’s page layouts by clicking on a page layout in the Page Layouts related list.
What is controller in Salesforce?
Controllers are server-side scripts that handle storefront requests. For example, when a shopper clicks a category menu item or enters a search term, it triggers a controller that renders a page. Controllers are written in JavaScript and Salesforce B2C Commerce script. JSON files.
What is a page in content?
Pages are the outermost container of structured content and contain regions. Regions contain components that you can structure hierarchically. Regions can also contain other regions. Components contain attributes that define the content asset.
What is SFRA in web design?
SFRA comes with a simple built-in Page Designer pages and prebuilt components such as headers, carousels, and product tiles.
Can you edit content assets in Business Manager?
But the content asset list in Business Manager doesn’t show pages and components, and you can't edit them directly from Business Manager. Generally, processes like replication and indexing work the same for pages and components as they do for content assets, and they are all stored in the content library (database).
What is VisualForce framework?
Visualforce is a robust, mature platform for building page-centric apps. The Visualforce framework provides a robust set of tags that are resolved on the server, and that work alongside standard or custom controllers to make database and other operations simple to implement.
Is Visualforce going away?
Visualforce has been around for a while, it’s a mature, well-understood platform for building your apps. It’s not going away. Lightning Components is the new kid on the block. It’s got a lot going for it, but, well, you know. It’s a stranger to you right now.
Can you use VisualForce as a container?
Visualforce as a JavaScript Application Container. When you think about it, Visualforce pages are just HTML pages with extra tags resolved by the server. As a result, you can use an empty Visualforce page as a container for a JavaScript application.
