There are already some questions about this but i did not find a working solution.

I'm trying to access in a javascript function the selected lookup value ID of an input field.

Do you know how can i do that?

My VF component:

<apex:component Controller="FController" extensions="FCompExtension" allowDML="true">  
    <apex:attribute name="recordId" description="Record Id" type="id" assignTo="{!record_Id}" required="true"/>   
    <apex:form >
        function ShowChinaOfficeSelection(){
            //First Way, doesn t work
            var SalesOrgId= '{!NewAccountForLFC.Sales_Org__c}'; 
            //Second Way, this gives me the text value
            var SalesOrgId=document.getElementById('{!$Component.lookupfield}').value;  
            console.log('SelectedSalesOrdId '+SalesOrgId);      


  <!-- LookUp Field -->
  <apex:inputfield value="{!NewAccountForLFC.Sales_Org__c}" onchange="ShowChinaOfficeSelection()" id="lookupfield"> 


1 Answer 1


There is a hidden field rendered in the page which corresponds to the lookup field. This hidden field contains the ID of the lookup value after the selection is made in the lookup dialog.

It is named the same as the lookup field's (visible) textbox and is suffixed with _lkid.

var SalesOrgText = document.getElementById('{!$Component.lookupfield}').value;
var SalesOrgId = document.getElementById('{!$Component.lookupfield}_lkid').value;

console.log('SelectedSalesText: ' + SalesOrgText);
console.log('SelectedSalesOrgId: ' + SalesOrgId);

Given a page like this:

<apex:page standardcontroller="Contact" id="thePage">
    <apex:form id="theForm">
        <apex:inputField id="theInput" value="{!Contact.AccountId}"/>

An input:text field will be rendered with the id: thePage:theForm:theInput which will contain the name of the record which was selected.

As well as an input:hidden field with the id: thePage:theForm:theInput_lkid which will store the selected record's id value.

  • Fantastic explanation Mark!
    – Enry
    Commented Mar 31, 2015 at 19:32
  • What is the !$Component here? the VF page or VF component?
    – Hasantha
    Commented Jan 15, 2016 at 1:54
  • It is a DOM element. developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/…
    – Mark Pond
    Commented Jan 15, 2016 at 2:00
  • can we access this through jQuery?
    – Hasantha
    Commented Jan 15, 2016 at 2:30
  • Create a question of your own regarding accessing a DOM element using this syntax via jQuery and any problems you're having doing so. Comments are not the place for a conversation about an altogether different question. -- nevermind, I see that you did create a question.
    – Mark Pond
    Commented Jan 15, 2016 at 4:35

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