displayedit.php

См. документацию.

<?php
namespace Bitrix\Main\UserField;

 
class DisplayEdit
    extends Display
    implements IDisplay
{
    public function display()
    {
        global $USER_FIELD_MANAGER;
 
        return $USER_FIELD_MANAGER->GetPublicEdit(
            $this->getField(),
            $this->getAdditionalParameters()
        );
    }
}