settings.php

См. документацию.

<?php
 
namespace Bitrix\Main\Grid;
 
use Bitrix\Main\ArgumentException;
 
class Settings
{
    public const MODE_HTML = 'html';
    public const MODE_EXCEL = 'excel';
 
    private string $id = '';
    private string $mode;
 
    public function __construct(array $params)
    {
        // for supports \Bitrix\Main\Filter\Settings
        $this->id = $params['ID'] ?? '';
        $this->mode = $params['MODE'] ?? self::MODE_HTML;
 
        if ($this->id === '')
        {
            throw new ArgumentException('Collection does not contain value for id.', 'params');
        }
    }
 
    public function getID(): string
    {
        return $this->id;
    }
 
    public function setMode(string $mode): void
    {
        $this->mode = $mode;
    }
 
    public function isHtmlMode(): bool
    {
        return $this->mode === self::MODE_HTML;
    }
 
    public function isExcelMode(): bool
    {
        return $this->mode === self::MODE_EXCEL;
    }
}