Contents
- 1 How do you fire an application event in aura?
- 2 How do you call an application event in lightning component?
- 3 How do you register fire and handle a component and application event?
- 4 Why is Lightning a component event?
- 5 What is the difference between application and component event?
- 6 How to handle an application event in aura?
- 7 How to fire an aura event in CMP?
How do you fire an application event in aura?
Register an Event A component registers that it may fire an application event by using in its markup. The name attribute is required but not used for application events. The name attribute is only relevant for component events. This example uses name=”appEvent” but the value isn’t used anywhere.
How do you call an application event in lightning component?
Use type=”APPLICATION” in the aura:event tag for an application event. The attribute type is the one that will differentiate Application event from Component event.
How do you register fire and handle a component and application event?
Here are the steps:
- Step 1: Create the event with the event type as Application.
- Step 2: Register the event in the sender component A and fire the event using the below code.
- Event_Name – File name of the event created in Step 1.
- Step 3: Now handle the fired event inside receiver B as shown below.
Which method is used to fire an event?
Prototype – fire() Method This method is used to fire a custom event with the current element as its target. The custom event has all the same properties and methods of native events. Like a native event, it will bubble up through the DOM unless its propagation is explicitly stopped.
Where is the application event log?
Open “Event Viewer” by clicking the “Start” button. Click “Control Panel” > “System and Security” > “Administrative Tools”, and then double-click “Event Viewer” Click to expand “Windows Logs” in the left pane, and then select “Application”.
Why is Lightning a component event?
Salesforce recommends to use component events whenever possible as they have a limited scope. Application Events are handled at the application level and can be used to communicate between different components that are not related to each other.
What is the difference between application and component event?
evt resource, and they can have one of two types: component or application. A component event is fired from an instance of a component. An application event is fired from an instance of a component. All components that provide a handler for the event are notified.
How to handle an application event in aura?
The aeHandler.cmp handler component uses the tag to register that it handles the application event. The handler for an application event won’t work if you set the name attribute in . Use the name attribute only when you’re handling component events.
How does fire event work in Lightning aura?
Fire a component event to communicate data to another component. A component event can be handled by the component that fired the event or by a component in the containment hierarchy that receives the event.
How does the aura component work in Salesforce?
The Aura component’s controller receives the event. You can handle the event however you’d like. This component operates on the filters array passed in the details property of the Lightning web component event. You can optionally fire a new Aura event to communicate with other Aura components.
How to fire an aura event in CMP?
The aeEvent.evt application event has one attribute. We’ll use this attribute to pass some data in the event when it’s fired. The aeNotifier.cmp notifier component uses aura:registerEvent to declare that it may fire the application event.
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