I have a table with one of the columns being a checkbox. I want to be able to pass all the checked items values into a list in another apex controller.


<apex:repeat value="{!data}" var="Results">
    <td style="text-align: center" width="4%"><input type="checkbox" name="bid" 
   value="{!Results.Id}" /></td>


public class UDQuoteTemp 
    public List<Id> Result_Ids {get; set;} //List of all the checked Ids

    public UDQuoteTemp(ApexPages.StandardController controller)
        //SOQL query all the ids from the list that is passed in.
  • 2
    Traditionally one does this using a wrapper class pattern, although it could certainly be done with, e.g., JS remoting. Have you looked at using a wrapper class? – David Reed Oct 19 '18 at 15:30
  • Not sure I fully understand what you're trying to do here, but it looks like you're assigning a checkbox value to a ID? Checkbox values have to be stored as Booleans, not IDs. – Charlie123 Oct 19 '18 at 16:47

I'm sure somebody will have a better answer than this, but here's how I handle this.

I find it is easier to bring the list in as a String instead, but assign a Javascript Array to the String. This way, you end up with a comma separated string which is easy to split.


public class CheckboxCTRL {
  public List<String> objects{get;set;}

  public String selected{get;set;}

  public CheckboxCTRL(){
    objects = new List<String>{'test1','test2','test3','test4','test5'};
    selected = '';
  public void doStuff(){
    List<String> the_list = selected.split(',');

The Javascript simply adds/removes a property from the object as you check/uncheck boxes. Each time, it prints the list of keys in the hidden input.

Realistically, you could only print the keys on the submit press, which would be more efficient.


<apex:page controller = "CheckboxCTRL" sidebar="false">
    var checked = {}; // object to store clicks

    function handleClick(event){

      var checkbox = event.target;
      if(checkbox.checked == true){

        // store ID
        checked[checkbox.getAttribute('data-id')] = 'true'; 

      } else {

        // delete ID
        delete checked[checkbox.getAttribute('data-id')];


      // don't forget to use the component ID
      var text_field = document.getElementById('{!$Component.theForm.hiddenInput}');

      // Built a list of the keys
      var key_list = [];
      for (var key in checked) {
        if (checked.hasOwnProperty(key)) {

      // set field value
      text_field.value = key_list;
  <apex:form id="theForm">
      <apex:repeat var="obj" value="{!objects}">
          <td>{!obj}<input type="checkbox" data-id="{!obj}" onclick="handleClick(event)"/></td>
    <apex:inputHidden id="hiddenInput" value="{!selected}"/>
    <apex:commandButton action="{!doStuff}" value="Do Stuff"/>

It's important to note that using $Component in VisualForce requires you to list the hierarchy of components to what you are trying to reference. While I only had a form and the input, if you embed that in a pageBlock, you'd have to reference the pageBlock ID. See the Salesforce Documentation on $Component here.

Hope this makes sense. It worked perfectly in my developer org, printing in the log whatever checkboxes I clicked.

  • I tried your code but get a console error of: Uncaught TypeError: Cannot set property 'value' of null – Alexander Atkinsoon Oct 22 '18 at 9:21
  • @AlexanderAtkinsoon That probably means you had an issue with the $Component.ID syntax to access visualforce components. Notice that in code, I reference {! $Component.theForm.hiddenInput}, this is because the apex:inputHidden component is within a apex:form tag with ID 'theForm' Make sure you reference all levels of nested visualforce components, so that if you put the form within a pageblock, you need to reference it as $Component.PageblockID,FormID,InputID These can sometimes be 'finicky' in my experience, so you may need to play around with what component ids you use to describe it. – stackasaur Oct 22 '18 at 12:52

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