Hey guys, today in this post we are going to learn about How to pass the color code value from a Child LWC Component to Parent Lightning Aura Component using LWC Dispatched Event.
Files we used in this post example:-
| colorPickerLwc.html | Lightning Web Component HTML | It is child component and calling into colorPickerLwcCmp.cmp. |
| colorPickerLwc.js | Lightning Web Component JavaScript | It is holding ColorPicker function with Custom Event & Dispatch Event and sending the color value to Aura Component. |
| colorPickerLwcCmp.cmp | Lightning Web Component HTML | It is Parent Aura Component and it’s hold Form Input field and color value that is getting from child component.. |
| colorPickerLwcCmpController.js | Lightning Web Component JavaScript | It is holding colorBgApply function and it is used for set the color value into input field label and border box. |
| colorPickerLwcApp.app | Component Application | It is used for call the parent component to preview on browser. |
Live Demo
Other related post that would you like to learn in Salesforce
Step 1:- Create Lightning Web Component : colorPickerLwc.html
SFDX:Lightning Web Component >> New >> colorPickerLwc.html
colorPickerLwc.html [Lightning Web Component HTML]
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<template> <lightning-card title="Apply color code from Lwc to aura component"> <div class="slds-wrap slds-grid"> <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--medium slds-text-align--left"> <lightning-input type="color" name="color-picker" onchange={colorHandleChange}></lightning-input> </div> </div> <br/><br/> <!--Start RelatedTopics Section--> <div style="border:1px #ddd solid; padding:10px; background:#eee; margin:40px 0;"> <p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:16px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span><a href="https://www.w3web.net/" target="_blank" rel="noopener noreferrer" style="text-decoration:none;" data-aura-rendered-by="440:0">An easy way to learn step-by-step online free Salesforce tutorial, To know more Click <span style="color:#ff8000; font-size:18px;" data-aura-rendered-by="442:0">Here..</span></a></strong></p> <br/><br/> <p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/07/tickMarkIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:17px; font-style:italic; display:inline-block; margin-right:5px; color:rgb(255 128 0);">You May Also Like →</span> </strong></p> <div style="display:block; overflow:hidden;"> <div style="width: 50%; float:left; display:inline-block"> <ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;"> <li><a href="https://www.w3web.net/lwc-get-set-lightning-checkbox-value/" target="_blank" rel="noopener noreferrer">How to get selected checkbox value in lwc</a></li> <li><a href="https://www.w3web.net/display-account-related-contacts-in-lwc/" target="_blank" rel="noopener noreferrer">how to display account related contacts based on AccountId in lwc</a></li> <li><a href="https://www.w3web.net/create-lightning-datatable-row-actions-in-lwc/" target="_blank" rel="noopener noreferrer">how to create lightning datatable row actions in lwc</a></li> <li><a href="https://www.w3web.net/if-and-else-condition-in-lwc/" target="_blank" rel="noopener noreferrer">how to use if and else condition in lwc</a></li> <li><a href="https://www.w3web.net/get-selected-radio-button-value-and-checked-default-in-lwc/" target="_blank" rel="noopener noreferrer">how to display selected radio button value in lwc</a></li> </ul> </div> <div style="width: 50%; float:left; display:inline-block"> <ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;"> <li><a href="https://www.w3web.net/display-account-related-contacts-lwc/" target="_blank" rel="noopener noreferrer">display account related contacts based on account name in lwc</a></li> <li><a href="https://www.w3web.net/create-lightning-datatable-row-actions-in-lwc/" target="_blank" rel="noopener noreferrer">how to insert a record of account Using apex class in LWC</a></li> <li><a href="https://www.w3web.net/fetch-picklist-values-dynamic-in-lwc/" target="_blank" rel="noopener noreferrer">how to get picklist values dynamically in lwc</a></li> <li><a href="https://www.w3web.net/edit-save-and-remove-rows-dynamically-in-lightning-component/" target="_blank" rel="noopener noreferrer">how to edit/save row dynamically in lightning component</a></li> <li><a href="https://www.w3web.net/update-parent-object-from-child/" target="_blank" rel="noopener noreferrer">update parent field from child using apex trigger</a></li> </ul> </div> <div style="clear:both;"></div> <br/> <div class="youtubeIcon"> <a href="https://www.youtube.com/channel/UCW62gTen2zniILj9xE6LmOg" target="_blank" rel="noopener noreferrer"><img src="https://www.w3web.net/wp-content/uploads/2021/11/youtubeIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong>TechW3web:-</strong> To know more, Use this <span style="color: #ff8000; font-weight: bold;">Link</span> </a> </div> </div> </div> <!--End RelatedTopics Section--> </lightning-card> </template> |
Step 2:- Create Lightning Web Component : colorPickerLwc.js
SFDX:Lightning Web Component >> New >> colorPickerLwc.js
colorPickerLwc.js [LWC JavaScript File]
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import { LightningElement } from 'lwc'; export default class ColorPickerLwc extends LightningElement { colorHandleChange(event){ const colorInpCodeVal = event.target.value; const inpColorCodeEvent = new CustomEvent('changecolorbg',{ detail:{colorInpCodeVal}, }); this.dispatchEvent(inpColorCodeEvent); } } |
Step 3:- Create Lightning Web Component : colorPickerLwc.js-meta.xml
SFDX:Lightning Web Component >> New >> colorPickerLwc.js-meta.xml
colorPickerLwc.js-meta.xml [LWC Meta Data XML]
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<?xml version="1.0" encoding="UTF-8"?> <LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata"> <apiVersion>50.0</apiVersion> <isExposed>false</isExposed> </LightningComponentBundle> |
Create Lightning Component and Controller
Step 4:- Create Lightning Component : colorPickerLwcCmp.cmp
From Developer Console >> File >> New >> Lightning Component
colorPickerLwcCmp.cmp [Lightning Component File]
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<aura:component implements="flexipage:availableForAllPageTypes"> <aura:attribute name="bgColorCode" type="String"/> <lightning:card> <aura:set attribute="actions"> <c:colorPickerLwc onchangecolorbg="{!c.colorBgApply}"/> </aura:set> <div class="slds-p-horizontal_small"> <h2 style="font-size:18px;"><b style="{!'color:' + v.bgColorCode}">Using Custom Event and Dispatch Event in LWC to Apply Color Code from LWC to Aura Component</b></h2> <br/> <div style="{!'border:' + '1px solid ' + v.bgColorCode + ';' + 'box-shadow:' + '0px 0px 5px ' + v.bgColorCode + ';'}"> <div class="slds-wrap slds-grid" style="{!'background-color:' + v.colorCodeText}"> <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--medium"> <div class="slds-form-element"> <label class="slds-form-element__label" style="{!'color:' + v.bgColorCode}">Name</label> <div class="slds-form-element__controller"> <ui:inputText class="slds-input" /> </div> </div> </div> <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--medium"> <div class="slds-form-element"> <label class="slds-form-element__label" style="{!'color:' + v.bgColorCode}">Email</label> <div class="slds-form-element__controller"> <ui:inputEmail class="slds-input" /> </div> </div> </div> <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--medium"> <div class="slds-form-element"> <label class="slds-form-element__label" style="{!'color:' + v.bgColorCode}">Phone</label> <div class="slds-form-element__controller"> <ui:inputPhone class="slds-input" /> </div> </div> </div> </div> </div> </div> </lightning:card> </aura:component> |
Step 5:- Create Lightning Component : colorPickerLwcCmpController.js
From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller
colorPickerLwcCmpController.js [JavaScript Controller]
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({ colorBgApply : function(component, event, helper) { component.set("v.bgColorCode",event.getParam('colorInpCodeVal')); } }) |
Create Lightning Application
Step 6:- Create Lightning Application : colorPickerLwcApp.app
From Developer Console >> File >> New >> Lightning Application
colorPickerLwcApp.app [Component Application File]
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<aura:application extends="force:slds"> <c:colorPickerLwcCmp/> </aura:application> |
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FAQ (Frequently Asked Questions)
How do I transfer record ID from LWC to Aura?
receiveData(stringToSend) line in the passDataToLWC method in the Aura Components Javascript controller. This is finding the lwc that we imported into our Aura Component by its aura:id and then calling the receiveData method in the LWC (the method with the @api decorator) and passing it data.
How do you call a LWC component in aura?
To call a method defined in a Lightning web component from an Aura component, give the Lightning web component an aura:id and use cmp. find() , just as you do to reference an Aura component. For example, cmp. find('childLwc').
Can we use LWC inside aura?
It is possible to include LWC in Aura, but not the other way around as the generic elements cannot be added to the custom components.
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