This is my VF page:

<apex:page standardController="Account">
<apex:relatedList list="Contacts" />

I would like to show number of records in the related list. I´ve tried, without success, with:


How can i accomplish this?

UPDATE: I know that i can do it in a controller extension (query contacts + size on result list) but i would like to calculate the number of record directly in the VF page.

Thanks in adavantage for any advice

  • Workaround: you could add a custom numeric field to Contacts that always displays "1" and then do a roll up summary on the account object of that field on Contacts. – user9959 Oct 10 '14 at 7:34
  • 1
    Thanks Tonino but using a roll up is a quite heavy solution. It will be better to count number of records in the controller with a query, but i would like to calculate the number directly in the VF page. – Enry Oct 10 '14 at 8:44
  • Ok..I think maybe this is not possibile (in VF page). – user9959 Oct 10 '14 at 8:47

This is very simple. You can try this code. I tested, it is working:

You need to use apex:repeat tag to get count

<apex:page standardController="Account">
    <apex:variable var="count" value="{!0}"/>
    <apex:repeat value="{!Account.contacts}">
        <apex:variable var="count" value="{!count + 1}"/>
    size is {!count}
    <apex:relatedList list="Contacts" />

Here's a nasty workaround that works in later API versions.

It works by coercing the related items to a string and measuring the length.

(Note that standard controller related items are not just SObject lists... so treat as black box)


  • 1
    Works as expected and cool – Cray Kao Sep 24 '18 at 7:20

I know it's been years since this question has been asked. But I think it could help others if I answer it anyway.

Use length instead of size in your markup.


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