lianjie_admin/app/Admin/Extensions/CheckRow.php

<?php
namespace App\Admin\Extensions;

use Dcat\Admin\Grid\RowAction;

class CheckRow extends RowAction
{

    public function title()
    {
        return 'Check row';
    }
    /**
     * 添加JS
     *
     * @return string
     */
    protected function script()
    {
        return <<<JS
$('.grid-check-row').on('click', function () {

    // Your code.
    console.log($(this).data('id'));

});
JS;
    }
    public function html()
    {
        // 获取当前行数据ID
        $id = $this->getKey();

        // 获取当前行数据的用户名
        $username = $this->row->username;

        // 这里需要添加一个class, 和上面script方法对应
        $this->setHtmlAttribute(['data-id' => $id, 'email' => $username, 'class' => 'grid-check-row']);

        return parent::html();
    }
}