Table of Contents
What is console Fire event in Salesforce?
sforce.console.fireEvent( eventType:String, message:String, (optional)callback:Function ) The type of custom event to fire. The message which is sent with the fired event. JavaScript method called when the custom event is fired.
How to handle a component event in Salesforce?
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. Application events follow a traditional publish-subscribe model. An application event is fired from an instance of a component. All components that provide a handler for the event are notified.
How do I fire and handle events in a 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. A component registers that it may fire an event by using <aura:registerEvent> in its markup. For example: We’ll see how the value of the name attribute is used for firing and handling events.
How do you fire a function as a result of event?
If you want a function to fire as the result of an event, it needs to be wired up to that event. Doing so makes that function an event handler. If you need access to the context of the invoking event, the function definition needs to include a single argument to serve as a reference to the event that fired it.
Which method is used to fire an application event in Salesforce?
fire()Use fire() to fire the event.
What is fire event in Salesforce?
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 do you fire a lightning event?
To create a component event in salesforce, navigate File -> New -> Lightning Event in developerconsole. Name the event, enter the description and click submit to create lightning event. The attribute type is the one that will differentiate Component event from Application event. The events can be fired from controller.
What are events used for in Salesforce?
In Salesforce, events are a powerful tool for keeping on top of customer relationships and closing deals. You can relate events to opportunities, leads, accounts, and contacts. Track them on those records, in your calendar, and in reports.
What is a fire event?
Fire event means a response by the Des Moines Fire Department to extinguish a fire within a building, dwelling or other structure that commences with the dispatching of fire department resources and concludes with the fire officer in charge terminating the incident.
What is Aura method in salesforce?
aura method in lightning salesforce. Use aura:method to define a method as part of a component’s API. This enables you to directly call a method in a component’s client-side controller instead of firing and handling a component event.
How do I fire an event in Visualforce page?
1 AnswerCreate a Lightning Component that wraps your VF page.Use postMessage() to send a message from the VF page to the Lightning Component.In the message handler of your wrapper component, create and fire your application event.
What are lightning events used for Salesforce?
In Salesforce, the Component Lightning Events are used to interact between the Lightning Components or in other words, we can say that it is the intermediate stage between the components to communicate.
What is Aura register event?
aura:registerevent is the notifier component and it declares that it may fire a particular event, it includes ‘name’ attribute which is relevant only to component event and is not used for application event. Other attribute is the ‘type’ which lets the component know which event would be fired.
What are event types in Salesforce?
These event types provide more granular visibility in user behavior on Lightning by separating user data into four distinct categories: Lightning Errors, Interactions, Page Views, and Performance.
Where are events in Salesforce?
Events: https://orgdomain.salesforce.com/00U….Click the App Launcher menu.Search for Calendar.Look for the calendar icon, then select Table (it will load to ‘Recently Viewed’ Events page).Click on the gear icon within the Events page.Click on New to create a custom Event list view.
What is bubble and capture phase in lightning?
The framework supports capture and bubble phases for the propagation of component events. These phases are similar to DOM handling patterns and provide an opportunity for interested components to interact with an event and potentially control the behavior for subsequent handlers.
Register an Event
A component registers that it may fire an application event by using <aura:registerEvent> 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.
Fire an Event
Use $A.get ( “e.myNamespace:myAppEvent”) in JavaScript to get an instance of the myAppEvent event in the myNamespace namespace.
Events Fired on App Rendering
Some events are automatically fired when an app is rendering. For more information, see Events Fired During the Rendering Lifecycle.
What is a fire application event?
Fire Application Events#N#Application events follow a traditional publish-subscribe model. An application event is fired from an instance of a component. All components that provide a handler for the event are notified.
Is name attribute required for application events?
The nameattribute 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. <aura:registerEvent name=”appEvent” type=”c:appEvent”/>. Fire an Event.
What are the events in JavaScript?
With JavaScript in the browser, events are all over the place. Parts of the DOM emit events that correspond to what that DOM object does. Buttons have click events, input and select controls have change events, and virtually every part of the visible DOM has events for when the mouse cursor interacts with it (like passing over it). The window object even has event handlers for handling device events (like detecting the motion of mobile devices).
What happens when an event is emitted?
When an event is emitted, a message is created in the engine. It is these messages that are placed in the event queue we talked about earlier.
What are the phases of a function?
There are two essential phases in the life of a function: definition and invocation. When function is declared, its definition is loaded into memory. A pointer is then assigned to it in the form of a variable name, parameter name, or an object property.
What is the first thing that is pushed onto the stack?
Remember, the first thing is a new frame is pushed onto the stack. Then an object containing its variables and arguments is created in memory. The this pointer is then bound to the object along with a few other special objects. Values passed into arguments are then assigned, and finally the runtime begins to execute the statements in the body of the function.
What is application event?
Application events follow a traditional publish-subscribe model. An application event is fired from an instance of a component. All components that provide a handler for the event are notified.
What is component event?
A component event is fired from an instance of a 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.
What is the value provider in Lightning?
Lightning has various value providers: “v” for attributes, “c” for controller, and “e” for events.
Does a component event have a name attribute?
It does not have the name attribute, which the component event has which basically is the same name we registered with.
Can application events depend on hierarchy?
Application events can be handled by any component and does not depend on hierarchy .
Is c:eventBubblingChild a containment hierarchy?
A containment hierarchy in this case is not c:eventBubblingChild instead it is c:eventBubblingParent .The event is not handled by c:eventBubblingChild as c:eventBubblingChild is in the markup for c:event BubblingParent but it’s not a facet value provider as it’s not the outermost component in that markup.
