How to create lightning component salesforce


Create a Lightning Web Component

  • Authorize Your Dev Hub. The next step is to authenticate Dev Hub. …
  • Create a Scratch Org. In Visual Studio Code, press Command + Shift + P on macOS or Ctrl + Shift + P on Windows or Linux. …
  • Create a Lightning Web Component. Creating a Lightning web component is a straightforward process. And Salesforce CLI already created a project structure that helps make getting started even easier.
  • Adding Code and Metadata to Your First Lightning Web Component. Let’s take a look now at the files that make up a Lightning web component. …
Create a Component to Use in the Lightning App Builder
  1. Click the gear icon ( …
  2. In the Developer Console, select File > New > Lightning Component.
  3. Name the component IndicatorBadges , select Lightning Record Page, and select Submit.
  4. Replace the contents of the component with this code: …
  5. Click File > Save.

Table of Contents

How to create custom lookup in Salesforce Lightning component?

Step 4 : Create Lightning Custom Lookup Component

  • lightning component [customLookup.cmp]
  • JS Controller [customLookupController.js] // This function call when the end User Select any record from the result list.
  • JS Helper [customLookupHelper.js]
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How to activate Salesforce Lightning?

Set the Default Interface to Lightning Experience

  • From Setup in Lightning Experience, enter Lightning in the Quick Find box, then select Lightning Experience Transition Assistant. …
  • Select the Roll Out phase.
  • Click Launch Lightning Experience to expand the stage.
  • Click Switch Users next to Make Lightning Experience the default interface. …
  • Click the + button next to the users you want to switch.

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How to create a custom field in Salesforce Lightning?

  • Some data types are available for certain configurations only. …
  • Custom settings and external objects allow only a subset of the available data types.
  • You can’t add a multi-select picklist, rich text area, or dependent picklist custom field to opportunity splits.
  • Relationship fields count towards custom field limits.

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How does Salesforce build Lightning Web Components?

Lightning Architecture Components:

  • Client Side: You may use JavaScript
  • Salesforce Cloud: It is to bind server as well as client.
  • Server side: Apex Controller manages server-side.

How do I create a lightning component in Salesforce Developer Console?

Let’s get going.Click the App Launcher. … Click Properties.Click New. … Click Cancel.Click the setup gear. … In the Developer Console, choose File > New > Lightning Component.Give the component a name of PropertyDialog .Under Component Configuration, select Lightning Record Page and click Submit.

How do you create a lightning component in a lightning page?

Navigate to Setup > Platform Tools > User Interface > Lightning App Builder. On the Lightning Pages section, click New. Select App Page, Home page, or Record page, where you want to add the component. In the Label field, enter the name of the lightning page and click Next.

How do I create a custom component in Salesforce?

To create a Visualforce custom component:In Salesforce from Setup, enter Components in the Quick Find box, then select Visualforce Components.Click New.In the Label text box, enter the text that should be used to identify the custom component in Setup tools.More items…

What is Salesforce lightning component?

Lightning Components are self-contained and reusable units of an application. Salesforce Admins deploy these components to construct single-page web applications that provide an end-to-end experience on the platform for a variety of functions. It is worth to remember that: Lightning components have . cmp extensions.

How do I edit a lightning component in Salesforce?

To edit its properties, select the component on the page canvas, and then enter changes in the floating component property editor. Custom components appear in the Components panel along with your template’s components.

How do you add and in lightning component?

Create a Lightning ComponentClick File > New > Lightning Component.Name the component EinsteinVision_Admin_UI .Click Submit.Replace the contents of the component with this code. … Click the Controllerbutton in the component palette on the right and replace the contents with this code.More items…

How do I create a custom component?

Click the Access advanced features button and select Define custom component. The Custom Component Wizard dialog box opens. In the Type list, select the component type : connection, detail, seam, or part. In the Name box, enter a unique name for the component.

How do I create a component in a VF page?

Add the Lightning Components for Visualforce JavaScript library to your Visualforce page using the component. Create and reference a Lightning app that declares your component dependencies. Write a JavaScript function that creates the component on the page using $Lightning. createComponent() .

What is the difference between lightning components and Visualforce Components?

Visualforce assists in the creation of personalized user interfaces with native hosting as a platform that includes tag-based markup language and server-side controllers. Lightning is a cutting-edge user interface framework that helps developers create immersive web applications for both mobile and desktop devices.

What is requirement to develop lightning component?

As of Spring ’19 (API version 45.0), you can build Lightning components using two programming models: the Lightning Web Components model, and the original Aura Components model. Lightning web components are custom HTML elements built using HTML and modern JavaScript.

What is difference between lightning and LWC?

Aura based lightning components are created using JS, HTML, but LWC is directly built on the web stack. The addition of above features gives more power to the web stack to build lightning UI components.

What is the difference between aura and LWC?

Aura and LWC can be able to communicate using Public API’s and Events. LWC can be embedded inside Aura Components, but Aura Components cannot be embedded inside LWC.

What is a service component in Lightning Web Components?

The files must use the same name so the framework can autowire them. A service component (library) must include a JavaScript file and a metadata configuration file. HTML Templates. The power of Lightning Web Components is the templating system, which uses the virtual DOM to render components smartly and efficiently.

What is Lightning web component?

A Lightning web component is a reusable custom HTML element with its own API. Define a Component. A Lightning web component that renders UI must include an HTML file, a JavaScript file, and a metadata configuration file. The files must use the same name so the framework can autowire them.

How to give your component the Lightning Experience look and feel?

To give your component the Lightning Experience look and feel, use Lightning Design System . To go your own way, write your own CSS . Composition. You can add components within the body of another component. Composition enables you to build complex components from simpler building-block components.

How does Lightning web work?

The framework creates components, inserts them into the DOM, renders them, and removes them from the DOM. It also monitors components for property changes.

What is indicator_ in ZBS?

We’re using “INDICATOR_” as a class name prefix for the Apex supporting our Indicator Badge application and Lightning components. As our code gets more complex (which it will in the next step), this pattern will help keep the ZBS code base organized into clear functional groups.

How to add Apex class to developer console?

In the Developer Console, click File > New > Apex Class.

What is doinit in a component?

Our component’s client-side controller has a doInit function that performs a basic sanity check (making sure the component has a valid API name to pass to the server), and then hands off coordination of the call to the server and response handling to the helper. This pattern of keeping the client-side controller more simplistic and handing off complexity to the helper is more typical of production-ready components. We’ll see why in our next step.

How to add Lightning component to developer console?

In the Developer Console, select File > New > Lightning Component.

What does Schema do?

Using the value returned by the Schema method not only displays the object name expected by users for both standard and custom objects, it also displays the information in the language determined by that user’s locale settings. (If a translated version exists.)

Do you need Apex for Lightning?

Though we use Lightning components to display our indicator badges (and in a later step, we even use Lightning Data Service to get record-level data without Apex), that doesn’t mean we don’t have any need for Apex. In fact, we need to use a fair bit of Apex to make our Indicator Badge records available for use in our Lightning components, along with other information.

What is the description attribute in Lightning App Builder?

The description attribute on the aura:component tag is optional, but recommended. If you define a description, it displays as the template description beneath the template image in the Lightning App Builder new page wizard.

What is a Lightning page template?

Every standard Lightning page is associated with a default template component , which defines the page’s regions and what components the page includes. Custom Lightning page template components let you create page templates to fit your business needs with the structure and components that you define. Once implemented, your custom template is available in the Lightning App Builder’s new page wizard for your page creators to use.

What is a custom template?

A custom template is an Aura component bundle that should include at least a .cmp resource and a design resource. The .cmp resource must implement a template interface, and declare an attribute of type Aura.Component [] for each template region. The Aura.Component [] type defines the attribute as a collection of components.

What is the label text in a CMP file?

Here’s the design file that goes with the sample .cmp resource. The label text in the design file displays as the name of the template in the new page wizard.

How much space does the right column take up?

When the template is viewed on a desktop, its right column takes up 30% (4 SLDS columns). The left column takes up the remaining 70% of the page width. On non-desktop form factors, the columns display as 50/50.

How big is a SVG file?

We recommend that your SVG resource is no larger than 150 KB, and no more than 160 px high and 560 px wide.

What is lightning:flexipageRegionInfo?

You can use the lightning:flexipageRegionInfo subcomponent to pass region width information to a component. Doing so lets you configure your page components to render differently based on what size region they display in.

How to add Aura component to VisualForce?

Add the Lightning Components for Visualforce JavaScript library to your Visualforce page using the <apex:includeLightning/> component. Create and reference a Lightning app that declares your component dependencies.

What is Lightning component?

Lightning Components for Visualforce is based on Lightning Out, a powerful and flexible feature that lets you embed Aura components into almost any web page. When used with Visualforce, some of the details become simpler. For example, you don’t need to deal with authentication, and you don’t need to configure a Connected App.

What does ltng:outapp do?

Extending from ltng:outApp adds SLDS resources to the page to allow your Lightning components to be styled with the Salesforce Lightning Design System (SLDS). If you don’t want SLDS resources added to the page, extend from ltng:outAppUnstyled instead.

What component loads the JavaScript file used by Lightning Components for Visualforce?

Add <apex:include Lightning/> at the beginning of your page. This component loads the JavaScript file used by Lightning Components for Visualforce.

What is an example of a Lightning app?

Here’s an example of a Lightning app named The app uses the <aura:dependency> tag to indicate that it uses the standard Lightning component, lightning:button.

Does Lightning have third party cookies?

Lightning components set cookies in a user’s browser. Since Lightning components and Visualforce are served from different domains, those cookies are “third-party” cookies. Your users need to allow third-party cookies in their browser settings. For more details, including the requirement to disable the Prevent cross-site tracking setting in Safari, see Lightning Out Requirements.

Can you call $Lightning.use multiple times?

You can call $Lightning.use () multiple times on a page, but all calls must reference the same Lightning dependency app.


The Aura Components Basics Trailhead module walks you through building a form for creating an expense record.

Implement a Basic Form

Before proceeding, we recommend that you have working knowledge of web forms, as the rest of the topic builds on that concept.

What to do if you use Trailhead in a different language?

If you use Trailhead in a language other than English, make sure that your hands-on org is set to the same language as the challenge instructions. Otherwise you may run into issues passing this challenge. Want to find out more about using hands-on orgs on Trailhead? Check out Trailhead Playground Management.

How to launch Trailhead Playground?

Launch your Trailhead Playground by going to any unit with a hands-on challenge, scrolling to the bottom of the page, and clicking Launch. If you see a tab in your org labeled Install a Package, great! Follow the steps below.

How to make a custom component usable in both?

To make a custom component usable in both, you need to: Configure the component and its component bundle so that they’re compatible with the Lightning App Builder and Lightning pages. Depending on the Lightning component programming model that you’re working with, see the Lightning Aura Components Developer Guide or the Lightning Web Components …

Where are custom components in Lightning App Builder?

Custom components in your org that are configured for use in the Lightning App Builder appear in the Lightning Components pane.

Can you create a custom Lightning component?

Creating a custom Lightning component requires programming skills. Or, you can install an existing Lightning component from the AppExchange.

Is my domain active in Trailhead?

By default, My Domain is already active in every Trailhead Playground. Don’t attempt to turn on My Domain, or change its settings, in your Trailhead Playground. Changing the My Domain settings could lock you out of your playground org.

Do you have to activate a page again?

Because you activated the page previously, you don’t have to activate it again.


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