messagetype.php

См. документацию.

<?
 
namespace Bitrix\Main\Grid;
 

class MessageType
{
    const MESSAGE = "MESSAGE";
    const ERROR = "ERROR";
    const WARNING = "WARNING";
    const INFO = "INFO";
    const SUCCESS = "SUCCESS";
 

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