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Questions tagged [javascript-controller]

A controller is a JavaScript Object, created by a standard JavaScript object constructor. In the Aura Framework, the JavaScript controller is client-side.

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How to use Array.map() in Lightning Component JS File

I was going through this blog to understand foreach loop, but the blog says that use of Array.map() is more efficient than for foreach. So, I tried implementing that in my Lightning Component, but it ...
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18 views

Copying fields data when checkbox is checked in multiple rows(Visualforce Page)

I have challenge I'm working on a visualforce page I want whenever the checkbox is checked I want to copy the values into input text fields in visualforce page. So here I have multiple rows and ...
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71 views

Unable to get values of selected elements in lwc js controller [on hold]

I'm developing a Lightning Web Component, which has the add & delete row functionality. Each row contains 1 input text & 2 picklists. I want to capture the value of all the rows i.e input ...
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2answers
19 views

Need to get the key of an Object Array given a Value

I have a registration process that differs from each record type, I need to get the recordType Name (or label in this case) so I can give proper flow to each user. The record type selection is made ...
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1answer
35 views

Use force:navigateToURL to open new window instead of new tab

When I use force:navigateToURL, it opens the URL in a new tab. Is there anyway to force this to open in a new browser window instead? Thanks in advance, code pictured below var urlEvent = $A.get("e....
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Is there any way of hide Navigational items in community upon User Profile?

I have been asked to hide tome tabs from navigation bar on Partner Community when the logged user is Community User. What have investigated so far: Create a custom theme and replace the the layout ...
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2answers
57 views

Multiple lightning:recordEditForm

I have a quick way of entering multiple records where user can add rows(record) to add. I am using lightning:recordEditForm component in aura:iteration. When i add multiple rows everything is working ...
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2answers
80 views

jsPDF in Lightning component: get blob in Apex controller

I'm trying to use the library jsPDF on a lightning component. The lighting component handles the creation, and needs to pass it to my apex controller (in order to save the file in Salesforce). ...
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1answer
23 views

How do I populate a Lightning:combobox with content from a map?

I've generated a map in my apex controller which I would like to use to populate a combobox. Simplified code below: Component: <aura:component controller="myController" implements="force:...
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1answer
30 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 ...
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1answer
25 views

Change field value in lightning component

I'm trying to change the value of the field Instagram_followers__c of my Influencer__c object in my lighthning component. It's a really simple component: a refresh button wich check the number of ...
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45 views

Issue with Save function on tabChange and textchange

I’m facing an issue registering tabset’s ‘onselect’ and textArea’s ‘onblur’ event when doing a ‘save’ on them. Below is my situation I created a form using lightning component which consists of a ...
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145 views

Array.push() won't update Lightning Web Component View

We are migrating over to Lightning Web Components in the last couple of weeks now and we had some struggles with the arrays in Javascript. On a trackable array, when I call push in a wiredMethod, ...
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57 views

Saving Lightning Select Value

I'm trying to display a drop down on a custom component and once a value is selected I would like to update the value in the database. I'm finally able to load the values from the database, set the ...
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2answers
149 views

Making inputField required

How do I make the following drop down required? <lightning:inputField aura:id="esctype" fieldName="Escalation_Type__c" /> Full Code <aura:component implements="flexipage:...
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2answers
50 views

Salesforce Apex-controller server side won't run - Lightning Component

I'm having an issue where .setCallback is not functioning . Everytime I delete an account it doesn't work. Here is my attribute <aura:attribute name="deleteholder" type="String" /> and here ...
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1answer
29 views

Search not refreshing when input SearchText changes

I have a lightning component which lists a list of reports. Also a search Bar so users can search from the list. I am not using Apex to perform the Search using .filter within the js controller. But ...
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108 views

Add addEventListener for blur to lightning:inputField

I want to invoke a method when inputfield is off from focus state(blur). I am trying as below but i am not able to get the alert statement when the cursor is out of focus from field . Can some one ...
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114 views

Get event source from onclick handler in outer div

In my lightning components, I am trying to create a system that keeps track of every button that gets clicked inside my component. Having an event that fires whenever any button is clicked turns out ...
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2answers
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Trying to execute 2 nested SOQLs, not getting the expected result

Here I am trying to filter the the records based on the output provided by the first soql, not getting the result I am looking for. public class DMLTest { public void DMLtesting() { List&...
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1answer
34 views

toLowerCase method not working inside a filter method [closed]

I am trying to use toLowerCase method inside a filter method. For some reason it doesn't seem to work. Not sure what I am doing wrong here. PLz advise! mdu["aaUnits"] = allUnits.filter(x => { ...
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1answer
28 views

How to add items to lightning tree component through controller?

I am trying to add items to the lightning tree component through the controller js file on the click of a button. I already have all the data pulled in on the load event. What happens now is it just ...
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1answer
61 views

Compare fields in lightning component

I have a lightning component which the goal of it is to open a page if some fields on the record are not null, how to compare those fields to null? Here the component: <aura:component controller="...
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1answer
104 views

Extract values of the object received in the apex method!

I am passing in an object with mutiple rows of data, which eventually will be saved to the custom object. How do I extract the values of the object that I received in Aura enabled apex method. ...
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2answers
36 views

Set 'option' attribute of CheckboxGroup via Apex

So this is an example of what i need to know. Basically i want to set the option attribute of my lightning:checkboxGroup via apex I even tried with a Map instead of an Object in apex controller. ...
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1answer
59 views

Salesforce Lightning: ondblclick event not working on Select List box

ListBox.cmp <div id="div1" > <label for="picklist">Available Labels</label> <br/> <select style="width:100%" id="picklist" multiple="multiple" ondblclick="myFunction()"&...
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Passing a variable to lightning component through snapin chat

I have a snapin chat component embedded on our custom application (not salesforce or a community). I'm trying to allow a parameter to pass through to my lightning component for use in the prechat ...
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1answer
142 views

calling apex method without a return value from controller

I am trying to call an apex method through a controller. I have read somewhere the apex methods without any return should be prefixed with get. I am not sure what I am doing wrong here. It says cant ...
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1answer
16 views

Variable add on a Javascript controller inside -> component.find(' variable ') markup

I want to add a variable like this. Day value is an Integer var day = component.find('days').get('v.value'); var date1 = component.find('HDate'+day+'__c').get('v.value'); But it returns an error at ...
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1answer
30 views

Not able to push records to javascript array to use it in the component!

I am trying to push data in the controller variable to eventually push it onto the component attribute variable. As of the now the record gets pushed but it clears the previous record that was in ...
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0answers
32 views

Is it possible to set a value (in table) dynamically through lightning javascript event?

I have list of object records displayed in a table on lightning component. I would like to dynamically set a field value when another field value is changed. I should be showing the set value to the ...
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1answer
315 views

Simple Popover Example Causing: “Cannot read property 'na' of undefined”

I'm trying to get the popover example from the Salesforce documentation working and it's giving me an interupt error with "Cannot read property 'na' of undefined" message. All I have done is copy ...
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2answers
105 views

Parsing error: Unexpected token in below code of in Lightining controller

({ doInit : function(component, event, helper) { component.set(v.columns[ {label: 'Department ID', fieldName: 'DepartmentID', type: 'Auto Number'}, {label: '...
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1answer
40 views

How to send an arrayList from Apex to Javascript and then to HTML?

I'm new in JS and can't understand, what is wrong here (this is my test value, but then I want to send an arraylist's elements): Apex: public String test{get;set;} public String myApexMethod(){ ...
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2answers
120 views

How to retrieve the checkbox which were selected and deselected now -Lightning component?

I have a table where object records are displayed along with a checkbox. All the existing records are displayed with checkbox ticked. If the User deselects the checkbox on any of the rows I should be ...
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2answers
160 views

Does more logic on Client side reduces the lightning performance?

I am just struggling to understand on this as I develop a lightning component. I have object rows from apex controller which gets displayed on the component using <table>, <tr> and <td&...
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1answer
82 views

Unable to Call Apex-Controller Method in Modal-Footer Component

I have a modal with a footer. The footer is just for Cancel and Save buttons, and their respective JS functions. Modal Markup <lightning:overlayLibrary aura:id="overlayLib"/> <lightning:...
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1answer
223 views

Dynamic Button Icons in a Data Table Similar to Dynamic Actions in a Data Table

It's possible to have actions for each row in a data table that change depending on the contents of the rows (that are changed by those very actions). For example: The component reference provides ...
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1answer
21 views

Child component not displaying records from Parent record

I am passing the results from Parent component to Child component but the results are not displayed for some reason. I have gone through many example codes and it seems I have done everything ...
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1answer
146 views

Multiple calls to lightning:quickActionAPI getAvailableActionFields() fails

I get an error when doing multiple calls to getAvailableActionFields in a Promise.all(). The markup: <aura:component implements="force:hasRecordId"> <lightning:quickActionAPI aura:id="...
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1answer
87 views

Help Interpret Peculiar Way of Handling SUCCESS and ERROR in Lightning Callback

I didn't write but rather I'm reviewing the following Lightning JS function: InitializeComponent : function (component) { var recId = component.get("v.recordId"); var action = ...
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2answers
46 views

Help Interpret Advanced Array Work in Lightning JS

I didn't write but rather I'm reviewing the following Lightning JS function: InitializeComponent : function (component) { var recId = component.get("v.recordId"); var action = ...
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1answer
469 views

How to get the display density in a lightning components controller?

Is it possible to see if a user is in Comfy or Compact display density in a lightning controller? This is a new feature since Winter '19 and I cant find any documentation about this.
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1answer
77 views

Lightning Application Event Seems to Refuse to Fire

Event: <aura:event type="APPLICATION" description="Event is fired when boat type is changed in the BoatSearchForm component" > <aura:attribute name="boatTypeId" type="String"...
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2answers
42 views

Extracting a callback function

I have the following code in my controller: doInit: function(component, event, helper) { // Create the action var action = component.get("c.getExpenses"); // Add callback behavior for ...
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1answer
178 views

lightning:recordEditForm, mark as missing a field that I'm passing

I have an Issue with this component. When every Try to submit a new OpportunityLineItem The component sends the following error messages. An error occurred while trying to update the record. Please ...
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1answer
60 views

Enque action of javascript controller in lightning not working as expected

I want to call action1 server call after action server call gets over while doing enque. Since its not a best practice to call consecutively. I called the action1 inside action as shown below. Which ...
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0answers
111 views

controller throwing javascript error

I have a very basic controller function which is for some reason throwing a Javascript error. HTML where controller is called: <lightning:button label="Apply" iconName="utility:magicwand" ...
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1answer
46 views

displaying loading gif until server returns response?

i am developing a lightning component and i'd like to find out how to adding a loading image. Inside my controller i have a fetch() function which will get a server response. How can i display a ...
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1answer
62 views

Not able to print out fields of custom object

In my client side controller, I call a server side action that returns a List of custom objects. Each of those custom objects has multiple fields attached to it. When printing the values in the ...