A Simple Example of Application Event Handling Between two Custom Lightning Components in Salesforce.
Hey guys, today in this post we are going to learn about how to communicate between two custom component using application event.
Real time scenarios:- Create an event in Salesforce lightning, and Checked the Value of Checkbox from parent component to child component on click button in Lightning Component using Application event.
Files we used in this post example:-
eventApp1.app
Lightning Application
It is used for call the component to preview on browser.
eventRegisterCmp1.cmp
Lightning Component
It is a parent component and hold a click button.
eventRegisterCmp1Controller.js
JavaScript Controller File
It is used for click function for Checkbox Checked the Value.
eventHandlerCmp1.cmp
Lightning Component
It is a child component of eventRegisterCmp1.cmp, It is hold checkbox input.
eventHandlerCmp1Controller.js
JavaScript Controller File
It is fire automatically and get the value of event from parent component and set value of attribute.
repCheckboxEvent.evt
Lightning Event
Creat a application event, hold a boolean type attribute that default value is false.
Live Demo
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Step 1:- Create Lightning Application : eventApp1.app
From Developer Console >> File >> New >> Lightning Application
eventApp1.app [Component Application File]
Step 2:- Create Lightning Component : eventRegisterCmp1.cmp
From Developer Console >> File >> New >> Lightning Component
eventRegisterCmp1.cmp [Lightning Component File]
Step 3:- Create Lightning Component : eventRegisterCmp1Controller.js
From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller
eventRegisterCmp1Controller.js [JavaScript Controller]
Step 4:- Create Lightning Component : eventHandlerCmp1.cmp
From Developer Console >> File >> New >> Lightning Component
eventHandlerCmp1.cmp [Lightning Component File]
Step 5:- Create Lightning Component : eventHandlerCmp1Controller.js
From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller
eventHandlerCmp1Controller.js [JavaScript Controller]
Step 6:- Lightning Event : repCheckboxEvent.evt
From Developer Console >> File >> New >> Lightning Event
repCheckboxEvent.evt [Lightning Component File]
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Originally published at https://www.w3web.net on September 2, 2020.
