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Questions tagged [lightning-events]

Lightning Events are a way for markup component to communicate its changing state

10
votes
1answer
8k views

lightning:spinner solution that finally works (using custom events, not aura:waiting)

Lightning components without a working loading indicator are just not professional. Too bad that there is not code example out there that seems to work under real-world circumstances.Every blog out ...
0
votes
0answers
13 views

window.addEventListener firing Multiple times

I have a situation where I need to reDirect the lightning page to record detail page once BACK button in iFrame is clicked. So, Java team was sending a postMessage from the page which I am opening it ...
1
vote
1answer
20 views

Unable to see Attendee list on event object in lightning experience in Spring'19

As per the below link of salesforce release notes, we can now see the attendee list on the event object in the lightning experience without enabling setting up the lightning sync. Salesforce Release ...
0
votes
1answer
481 views

Lightning Components: Call init method of a child component from a parent component

I want to call the init method of a child LC from a parent LC. I tried to use aura:method, and call the init method from a parent method. ..... <aura:attribute name="userContact" ...
3
votes
3answers
1k views

Can we reload screen after Save from force:editRecord event?

I've a Custom Lightning Component displaying a List custom object records. On each data row, I've custom button to Edit the record. On Edit click, I've fired following event: var editRecordEvent = $...
0
votes
0answers
8 views

Firing an application event of package A from package B

I recently came up against a problem related to event communication between two managed packages. In my scenario, I am able to fire an application event from package A and handle it in package B. My ...
5
votes
2answers
2k views

how to access the save button in a modal when implementing the force:lightningQuickAction

I am actually creating a component that will implement the force:lightningQuickAction so that my component open in a modal window from the action button.I would like to capture the event where the ...
0
votes
1answer
16 views

Event fired when user redirects to home : exists?

Heyo all, I am working on a Lightning Community. I need to detect whenever the user goes to the main page (clicking page logo, home ling, whatever...). I tried the following events : <aura:...
0
votes
0answers
44 views

Stop lightning custom event after handling it

I have a custom lightning component that calls another one via event and retrieve specific data. Problem is that I can call my component many times and every time I enter this component again from ...
2
votes
1answer
789 views

How to handle an event in a child component that is fired from a dynamically created grandchild component?

I have a component that includes a child component. The child component has a button that fires showCustomModal on an overlayLibrary and the content is a dynamically created component. Component ...
1
vote
3answers
4k views

How to get Child Component value from Parent component in JS controller?

Child Component - SearchBarCmp.cmp <aura:component > <input type="text" class="form-control" onchange="{!c.searchKeyChange}" placeholder="Search" id="SearchKeyValue"/> <...
4
votes
2answers
689 views

force:recordData “recordUpdated”: Detect Trigger/Workflow Changes

I'm using Lightning Data Service in a component. It all works well. One item I've noted is that it does not seem to detect changes to fields which may have occurred via a trigger or workflow after a ...
0
votes
1answer
21 views

Reuse Deleted Aura Component Name

While doing a trailhead superbadge I created a component event named "FormSubmit". After the fact, I noticed that the specific phrasing on trailhead was "formsubmit" so I deleted the component event ...
1
vote
1answer
86 views

Lightning Web Components: How to handle events from grand child on the owner(eventParent) component

I have 3 Lightning web components, Parent ->Child -> Grand child all with just a lightning button inside it. eventParent: <template> <lightning-button variant="brand" label="Submitparent" ...
0
votes
0answers
13 views

Passing Data between two unrelated Lightning Components [duplicate]

Does anyone know how to pass values from one lightning component to another unrelated lightning component? There's no Parent-Child combination and these components or not in a containment hierarchy. ( ...
0
votes
3answers
1k views

Lightning:openFiles Fires but does nothing

I am trying to use some out of the box events within lightning components, but nothing seems to happen once they are fired. I have the same issue with pretty much any out-of-the-box event. Currently, ...
0
votes
0answers
12 views

The application event not working [duplicate]

I know what I am asking is a very basic example question. But I am trying to understand the application event using an example and it is not working. I tried to figure it out all by myself for a long ...
0
votes
1answer
412 views

getParam Not Working on Simple Application Event

I have a button which when pressed causes an application event to fire. Before it does this it sets a string value using setParam. The event is fired and handled successfully. However, when I try to ...
0
votes
3answers
2k views

How to refresh the browser page in a lightning component?

I have a lightning component which handles a event and performs subsequent dml operations. Once this is done, a toast message is displayed (success/ error etc.) I want to refresh the entire browser ...
0
votes
0answers
8 views

Lightning Calander

I am new to lightning, I want to make appointment system using standard lighting calendar, Is there anyway i can replace day in day view with staff name like we have in fullcalendarui. i'll share a ...
2
votes
1answer
117 views

Is it possible to fire an event from a LWC and handle in another LWC which is not in containment hierarchy?

Is it possible to fire an event from a lightning web component and handle in another lightning web component which is not in containment hierarchy? This is achievable in Aura component using ...
0
votes
1answer
33 views

lightning datatable populate on paste from clipboard

Is it currently possible access the clipboard conents from the onpaste event for the lightning datatable? If so how? If not then is there a work around? I want to copy an paste from Excel and ...
0
votes
0answers
99 views

Lightning Record Edit Form onsuccess not firing

Having issues getting the onSuccess Event to fire on my Lightning:recordEditForm. My submit button is outside of the Lightning:recordEditForm and that works perfectly but i'd like to have the ...
1
vote
2answers
5k views

How to call parent Lightning component's method in child component?

I want to create a Lightning component where i can define some custom actions which can be used by the component which is creating instance. It will be very similar to the onrowselection, onsort ...
0
votes
1answer
155 views

How to handle Lightning Web Component Event from Lightning Aura Component?

I am firing an event from my Lightning Web Component(LWC). Now I have to receive this event by a Aura Component. As per the documentation I am able to receive the event if this LWC is enclosed in the ...
1
vote
1answer
303 views

Lightning Web Component use Publish-Subscribe event in Community cloud

How can we use publish-subscriber event pattern in Community Cloud using lightining web component. I have drag-and-drop two Lightining Web Component(LWC) in a community page. On click on first ...
0
votes
0answers
43 views

Lightning aura event handler error

I am using a custom application event (ackRequest) that I use to validate all components in a page. This event is fired in the afterRender of the community layout component. The event is handled ...
0
votes
0answers
26 views

LEX console method issue - lightning:tabClosed

I am trying to utilise the lightning:tabClosed event within my LEX component on a Case. I want to be able to get the record ID for the tab that was closed, as I need to do some processing using that ...
0
votes
1answer
41 views

Dynamic DOM : firing event on click

I am dynamically creating some DOM elements inside my component's controller and adding them to the page. I need to set the onclick event on these elements to call another controller function that ...
1
vote
1answer
44 views

Can't handle an Application event in Lightning

I am trying to handle Application event in a listening component but it doesn't work for some reason. Please, help. I can't write in console log "here" in the end Application <aura:application ...
0
votes
1answer
26 views

Loop through html object collection [duplicate]

How can I access the html element div.card as shown below, the div returns as Proxy{} in lightning and I cannot manipulate the DOM. The div comes from the content in controller because it is in rich ...
0
votes
0answers
37 views

Firing an event from one component to another in Lightning

Appreciate some guidance. I have a component which has a checkbox component and a calendar component. I would like to fire an event when a checkbox is selected and render the 2nd component(calendar) ...
2
votes
1answer
2k views

The campingList JavaScript controller isn't calling 'saveItem'

The Trailhead challenge check is telling me the following: Challenge Not yet complete... here's what's wrong: The campingList JavaScript controller isn't calling 'saveItem' in the Apex class to ...
0
votes
1answer
27 views

Component Event doesn't seem to working! [duplicate]

I was testing passing data between two components using Component Events but something doesn't seem to be right. I am not able to get the value in the Handler component. Could someone let me know what ...
2
votes
0answers
2k views

Cannot read property 'config' of undefined

I get this error just randomly: Uncaught Error in $A.getCallback() [Cannot read property 'config' of undefined] Callback failed: apex://taskKanbanController/ACTION$getKanbanWrap Here's the relevant ...
0
votes
0answers
24 views

Lightning Application event undefined in d3.js .on() handler

I'm trying to fire an Lightning Application event from a d3.js handler. Basically I'm doing following: let stageMenuSelection = stageMenuContainer.select(stageMenuSelector), ...
0
votes
0answers
33 views

Change Platform Event Notification on Click

We are using the platform events to deliver the custom lead notifications through apex class. Database.SaveResult result = Eventbus.publish(leads); When the user clicks on the notification message, ...
0
votes
1answer
57 views

On change of designer attribute, init() handler is called again

We are using lightning components in a community. We drag drop the components into a template and configure through designer attributes. For one of such lightning component, there is an init() handler ...
1
vote
2answers
163 views

Undefined value from event

I am trying to get the value of (firstName, lastName, emailAddress, mobile) from the parent component and use it in my child component but when I set it into params and logged the values, I always got ...
0
votes
1answer
27 views

Application Event not recognized by handler component

My handler component (recordCreate.cmp) isn't recognizing an application event for some reason, and generating this error as a result: No EVENT named markup://c:newEngagement found : [markup://c:...
6
votes
1answer
515 views

How to run code when the browser window is resized in a Lightning Component?

I am running some code on the render event that decides whether or not some buttons related to scrolling are displayed depending on some element properties: <aura:handler name="render" value="{!...
0
votes
2answers
39 views

Lightning Event in Looping [closed]

I know it's a strange question to ask without context but what would be the implications if I have a lightning component firing an 'COMPONENT' type event every 1 second? I imagine it would be quite ...
0
votes
1answer
627 views

Handle event in different instances of the same component

I have a main component that creates different instances of a child component which all have inputs and checkboxes. What I want is that whenever I change the value in a picklist for a child component, ...
0
votes
2answers
50 views

Lightning - Which element was Changed?

I have a table for create expenses. I need to identify each element that I select, in order to perform validations or actions for each one. I have tried: var rowId = event.currentTarget.id; It ...
1
vote
1answer
42 views

Passing mutiple attributes to Application type event and handling the event in multiple components

Here is what I am trying to do. I have components A, B, C all on the Home page and there is another component D which has few Aura:If blocks to display differnt blocks as needed. I am using a few ...
0
votes
1answer
620 views

Lightning Event with multiple components as handlers?

We have created a lookup component that we are reusing throughout our lightning app. Because these lookups are under each other, I would like to have all other the drop downs be closed as soon as one ...
0
votes
1answer
30 views

Capture the same event in 2 lightning components

I have two different lighting components that launch an overlay with the same component inside it. The overlay provides the user a modal to select some options and upload a file using lightning:...
2
votes
1answer
94 views

How can you get the caret position when working from an event?

Looking at the Locker documentation they list selectionStart as being a valid attribute, but I can't find a way to access it. I am trying to write an input masking utility, and everything works fine ...
1
vote
0answers
92 views

Send data from Lightning component to visualforce page without window.postmessage

I am using window.postmessage() to send data from lightning component to visualforce page as given in below link. https://developer.salesforce.com/blogs/developer-relations/2017/01/lightning-...
0
votes
0answers
25 views

Lightning: Standard events are not firing in some Sandboxes

I have created a custom lightning component for users to create new Case from the Account related tab. However standard events such as "navigateToSObject", "navigateToObjectHome" are not firing after ...