I have no idea what's going wrong, so I'll just paste all the code I've got and let you share in the madness. Basically I want to fire an application event that takes the value from a lightning:input search bar as an attribute (lightning:input - search never worked for me so I'm trying to build a generic workaround component). Problem is I always get this error:

Uncaught TypeError: Cannot read property 'setParams' of undefined throws at components/c/CCW_Generic_Searchbar.js:65:14

I set up everything the way I always do, basically copied and pasted from other working components, but nothing I do fixes it. Remade the event, rewrote everything, I'm out of ideas. Any advice would be greatly appreciated.


<aura:registerEvent name="CCW_Generic_Searchbar_Event_2" type="c:CCW_Generic_Searchbar_Event_2"/>
<aura:handler event="c:CCW_Generic_Searchbar_Event_2" action="{!c.handleSearch}"/>

<aura:attribute name="label" type="String" default="Search"/>
<aura:attribute name="placeHolder" type="String" default="Search"/>
<aura:attribute name="id" type="String" default="-1"/>

<aura:attribute name="GlobalId" type="String" access="GLOBAL" description="super id" />
<aura:attribute name="input" type="String"/>
<aura:attribute name="output" type="String" default="output"/> 
<aura:attribute name="initialized" type="Boolean" default="false"/>

<aura:handler name="init" value="{!this}" action="{!c.doInit}" />
<aura:handler name="change" value="{!v.initialized}" action="{!c.onRender}"/>

<div id="{!GlobalId + '_search'}">
        <lightning:input type="search" label="Search" name="search" aura:id="bar" placeholder="{!v.placeHolder}"/>



doInit : function(component, event, helper){

    component.set("v.initialized", true);
    console.log('end doInit');


onRender : function(component, event, helper) {

    console.log('in onRender 1');

        var searchId = component.getGlobalId() + '_search';

        console.log('in onRender 2, searchId = '+searchId);

        document.getElementById(searchId).addEventListener("keyup", function(e) {

            console.log('in onRender 3 event listener');

            if ((e.keyCode || e.which) == 13) {
                console.log('in onRender 4 enter');

                var id = component.get("v.id");
                var input = component.get("v.input");
                component.set("v.input", '');


            } else {
                console.log('in onRender 5 else');

    }, 100);

    console.log('in onRender 6 end on render');


handleSearch : function(component, event, helper){

    console.log('search handled');

    var id = event.getParam("idn");
    var input = event.getParam("input");
    var output = 'output: id = '+id+', search = '+input;
    component.set("v.output", output);



runSearch : function(component) {

    console.log('in runSearch 1');
    var event = $A.get("e.c:CCW_Generic_Searchbar_Event_2");
    event.setParams({"input": input, "idn":String(id)});


inputChange : function(component){

    console.log('in inputChange 1');

    var value = component.find('bar').get('v.value');
    component.set("v.input", value);



<aura:event type="APPLICATION" description="Generic Search Event">
    <aura:attribute name="input" type="String"/>
    <aura:attribute name="idn" type="String"/>

I suspect it has something to do with how the event is being registered?

  • Have you checked the name of your event? Also, perhaps try making a simpler event and using that. Try defining the event in the developer console rather than sublime - I sometimes find the event has not even been created in the org when saving from sublime. Jul 8 '17 at 1:45
  • Can you try removing the name if its an application event?
    – RedDevil
    Jul 8 '17 at 2:58
  • Hey guys, thanks for the help. Caspar I checked the name of the event, substituted two other events, and have defined all my events in the developer console. Still no dice... RedDevil I tried removing the name from the application event (I assume you mean on the aura:registerEvent tag) and I got this error: Failed to save undefined: 0Ad5B0000008skr:3,73: name is a required attribute on tag registerevent: Source Jul 10 '17 at 15:30

I don't exactly have an answer for you... more a way of getting around your problems. Please let me know if I'm barking up the wrong tree...

First - why can't you add an onkeyup event in the markup?

Second - you don't need that timeout - you should be listening for the valueRender event, which ensures that everything is rendered for you.

So the affected markup would be:

<aura:handler name="init" value="{!this}" action="{!c.doInit}" />
<aura:handler name="render" value="{!this}" action="{!c.onRender}"/>

<div id="{!GlobalId + '_search'}" onkeyup="{!v.handleKeyup}">
  <lightning:input type="search" label="Search" name="search" aura:id="bar" placeholder="{!v.placeHolder}"/>


Your handleKeyup method could be:

handleKeyup : function(component) {
  if ((e.keyCode || e.which) == 13) {
    component.set("v.input", '');
  else {

This way you don't need change handlers, setTimeout or setCallback - it's all within the framework, so should work fine.

  • This is exactly what I was looking for! For some reason I never thought to try adding onkeyup on the div, only the lightning input. For some reason valueRender never worked for me before (probably because I had all that weird addListener stuff) but now its working fine. Thanks a ton!! Jul 28 '17 at 17:19

Figured it out! So I'm pretty sure the issue was related to salesforce requiring $A.setCallback on certain event listeners/timeouts. Apparently if you leave this out it can mess with your event calls, but there's a simple trick that solves the problem without even needing $A.getCallback. Instead of calling helper.runSearch() inside the eventListener/timeout blocks to fire the event, I set a string attribute called lastSearch to the input value. Then I added a change handler for the lastSearch attribute that called a function to fire the event. Moral of the story was: if you ever find yourself screwed by JS functions running outside the normal rendering lifecycle, pass whatever values you need to attribues in your .cmp, then fire a change handler to do whatever didn't work

  • Good to know. There was another question on sfse last night that had problems with setCallBack too - totally different ones, but it seems it's something to be pretty careful of. Jul 12 '17 at 20:09

I've just found that, instead of

var event = $A.get(“e.c:applicationEvent”)

which started returning undefined, you can use

let event = component.getEvent("applicationEvent");

I got this syntax from the trailhead https://trailhead.salesforce.com/content/learn/modules/lex_dev_lc_basics/lex_dev_lc_basics_events

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