正确使用Microdata中的ListItem？

Question

I am passing the SDTT, and the information even looks orderly in the SDTT result. But I suspect this is going to fail when I go online because I can't find this approach anywhere else.

Do I need to include itemprop="itemListElement" in each div , and repeat for each item, or have I developed a shortcut that will actually work?

<div itemscope itemtype="http://schema.org/ListItem">
    <p itemprop="name">My list</p>
    <p itemprop="description">blurb about the list</p>

   <meta itemprop="position" content="1"/>
        <p itemprop="name">first item name</p>
        <p itemprop="description">blurb about the first item</p>

    <meta itemprop="position" content="2">
    <!-- repeat as above... -->

</div>

Please give some guidance regarding the correctness of this approach.

Answer 1

You have to provide the itemListElement property (with item values).

In your snippet, you are adding all properties to a single ListItem (I assume you meant to use ItemList , but it doesn't change the problem). This means that this item has multiple names ( name ), multiple descriptions ( description ), and multiple positions ( position ).

Microdata doesn't capture the order of the HTML elements. So the following HTML snippets produce equivalent Microdata:

<div itemscope>
  <meta itemprop="position" content="1" />
  <meta itemprop="position" content="2" />
</div>

<div itemscope>
  <meta itemprop="position" content="2" />
  <meta itemprop="position" content="1" />
</div>

(Schema.org defined the position property exactly because Microdata doesn't care about the order in the HTML, so the order has to be specified explicitly if it's relevant.)