I'm looking for getting a dynamically assigned Aura:id. Below is my attempt to read it in Lightning:recordEditForm.

Component markup:

<aura:component >
    <aura:handler name="init" value="{!this}" action="{!c.init}" />
    <aura:attribute name="conid" type="Id" default="null" />

    <aura:attribute name="fields" type="String[]" default="['Email','Birthdate']" />

    <lightning:recordEditForm aura:id="conRecEdit" objectApiName="Contact" recordid="{!v.conid}" >
        <lightning:messages />
        <lightning:inputField aura:id="fname" fieldName="FirstName"/>   
        <lightning:inputField aura:id="lname" fieldName="LastName"/>    

        <aura:iteration items="{!v.fields}" var="f" >
            <lightning:inputField aura:id="{!f}" fieldName="{!f}"/>

        <lightning:button type="button" label="test" onclick="{!c.checkValue}" />

JS Controller:

    init : function(component, event, helper) {
        var fld = component.find('fname');
        console.log('fld '+fld);
        if (fld!=null)
            fld.set('v.value', 'new name');

        var fld1 = component.find('Email');
        console.log('fld1 '+fld1);
        if (fld1!=null)
            fld1.set('v.value', 'test@test.com');

    checkValue: function(component, event, helper){
        var fld1 = component.find('Email');
        console.log('fld1 '+fld1);

        if (fld1!=null)
            fld1.set('v.value', 'test@test.com');


enter image description here

If we assign aura:id hard-coding it, it works perfectly fine. But if the id is assigned dynamically, seems it's not possible to find here.

Any clues, suggestions to workaround reading the aura:id in above working example. Much Appreciated! Thanks!


aura:id can't be populated dynamically:

aura:id doesn't support expressions. You can only assign literal string values to aura:id.

Instead, give all of your <lightning:inputField> components a common aura:id so that you can find them, and then filter by the fieldName attribute:

<aura:iteration items="{!v.fields}" var="f" >
    <lightning:inputField  aura:id="contactField" fieldName="{!f}"/>


let emailField = component.find('contactField').filter(x => x.get('v.fieldName') === 'Email')[0];
emailField.set('v.value', 'test@test.com');
  • Hi @David Reed Thank you, and appreciate for your help. worked perfect. – PasanE May 21 at 23:28
  • Probably could use const rather than let. – Adrian Larson May 21 at 23:33

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