{* System: .row_expand_link, .row_preview_content *}
{foreach from = $item->multiRowDataColumns item = columns}
<tr {if $item->renderPrimaryKey}{$row|@data_attr:$item->primary}{/if}>
    {if $item->hasRowPreview}
        <td><a href="#" class="row_expand_link" onclick="return false;">&#8595;</a></td>
    {/if}
    {foreach from = $columns item = column}
        {include file=$item->getTemplate('cell.tpl')}
    {/foreach}
</tr>
{if $item->hasRowPreview}
<tr class="row_preview_content" style="display: none;">
    <td colspan="{$item->columnCount}"></td>
</tr>
{/if}
{/foreach}