editaction.php

См. документацию.

<?php
 
namespace Bitrix\Main\Grid\Panel\Action;
 
use Bitrix\Main\Grid\Panel\Snippet;
use Bitrix\Main\HttpRequest;
 
abstract class EditAction implements Action
{
    public static function getId(): string
    {
        return 'edit';
    }
 
    public function getControl(): ?array
    {
        return (new Snippet)->getEditButton();
    }

    protected function getRequestRows(HttpRequest $request): array
    {
        return (array)$request->get('FIELDS');
    }
}