types.php

См. документацию.

<?php
 
namespace Bitrix\Main\Grid;
 

class Types
{
    public const GRID_CHECKBOX = 'checkbox';
    public const GRID_TEXT = 'text';
    public const GRID_INT = 'int';
    public const GRID_CUSTOM = 'custom';
    public const GRID_LIST = 'list';
    public const GRID_GRID = 'grid';

    public static function getList()
    {
        $reflection = new \ReflectionClass(__CLASS__);
 
        return $reflection->getConstants();
    }
}