I have an apex class with one method that returns a list of Standard Campaign objects that I'm trying to print in a visualforce page. For some reason, the list does not print in the visualforce page but another list of a custom type (defined in the class) is successfully printed on the page. In the visualforce page, I'm setting the controller attribute to the name of the controller class so I was thinking that maybe the controller doesn't recognize objects of types that aren't specified in the <apex:page/> tag.

I'm not directly extending any classes in the visualforce page and I'm accessing other classes besides Campaign so I'm not sure if I would need to set each sObject I use as a controller or even how I would do that. How do I display standard objects in a visualforce page?

EDIT: visual force page code:

<apex:page controller="CreateCampaign"   >
    <apex:form >
         <apex:pageBlock title="Quick Edit: ">
            <apex:pageBlockButtons >
                <apex:commandButton action="{!createCampaignFromPage}" value="Save"/>
            <h1>Hello World</h1> 

<apex:repeat value="{!availMailingsRet}" var="string" id="theRepeat3">
            <apex:outputText value="{!string}" id="theValue3"/><br/>
        </apex:repeat> //This works
        <apex:repeat value="{!campaignsRet2}" var="string" id="theRepeat4">
            <apex:outputText value="{!string}" id="theValue3"/><br/>
        </apex:repeat> // This doesn't



The method included in the snippet below works if I switch out the standard Campaign object with CampaignObj which is a class defined within the controller

public class CreateCampaign {
 public static List<CampaignMember> campaignMembersRet {get; set;}
    public static List<AvailableMailing> availMailingsRet {get; set;}
    public static List<Campaign> campaignsRet {get; set;}
    public static List<CampaignObj> campaignsRet2 {get; set;}

public  List<Campaign> upsertCampaigns(){
        /*Create campaigns that don't currently exist
        List<Campaign> campaigns = new  List<Campaign>(); 
        List<AvailableMailing> availMailings =  getAvailableMailings();
        List<Integer> campaignsNotFound = new List<Integer>();
        List<Campaign> allCampaigns = [SELECT Id , Campaign_Key__c FROM Campaign WHERE Campaign_Key__c <> ''];
        List<CampaignObj> nullCampaigns = new  List<CampaignObj>(); 
        for(Integer i = 0; i < availMailings.size(); i++){
            for(Campaign cmp : allCampaigns ){
                if(availMailings[i].Campaign_Key == cmp.Campaign_Key__c){

        for(Integer i = 0; i < campaignsNotFound.size();i++){
            AvailableMailing currentMailing = availMailings[campaignsNotFound[i]];
            Campaign camp = new Campaign(Campaign_Key__c = currentMailing.Campaign_Key, name = currentMailing.name,Mailing_ID__c= currentMailing.MailingId,Type = currentMailing.type);            

            upsert campaigns Campaign_Key__c;
        catch (DmlException e) {
    return campaigns;
  • You don't need to use an sObject's standard controller to display values of that type in the page. You simply need to reference them using the appropriate Visualforce syntax ({! }) inline or in the components you are using. – David Reed Feb 28 '18 at 20:51
  • @DavidReed I'm currently doing that, I just updated the post with the code from the page – loremIpsum1771 Feb 28 '18 at 20:57
  • Can we see the controller too? – Sebastian Kessel Feb 28 '18 at 21:08
  • @SebastianKessel I updated the post with code from the class – loremIpsum1771 Feb 28 '18 at 21:20
  • Not Enough.... what do your inner classes look like? – Sebastian Kessel Feb 28 '18 at 21:23

Based upon the discussion on a previous question, I think the what you have here is a type mismatch. You're working with a controller property like this:

public List<Campaign> campaignsRet2 { get; set; }

and you're trying to display it like this:

<apex:repeat value="{!campaignsRet2}" var="string" id="theRepeat4">
    <apex:outputText value="{!string}" id="theValue3"/><br/>

The reason this doesn't work is that the variable string defined by your <apex:repeat> is not a string that can be displayed by <apex:outputText> - it's a Campaign, an sObject instance, and standard output components don't display sObjects.

Instead, you can use one or more standard output components to display fields from your sObject, along this pattern:

<apex:repeat value="{!campaignsRet2}" var="theCampaign" id="theRepeat4">
    <apex:outputText value="{! theCampaign.Name }" id="theValue3"/><br/>

(Note that I've changed your variable name for clarity).

You can add further output components within the same <apex:repeat> to display other fields from the same Campaign, and they don't all have to be <apex:outputText>.

  • Ok, that makes sense. It looks like in apex, pretty-printing was implemented for lists objects but I guess not for sObjects. – loremIpsum1771 Feb 28 '18 at 21:31

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.