The Service of GetExternalContent(Crawl) no return value

[YX_9984043]

I tring to study "content crawler" by referring to the following help documents.

Content Crawler (ptc.com)

When I follow the tutorial step by step,But after I execute the method GetExternalContent(Crawl) , there is no return value.

In fact, the Datatable I'm fetching has values.

 

The CrawlerThing and Datatable I created have been uploaded to the attachment,Can you help me figure out what's wrong.

Thanks.

[PaiChung]

As far as I remember, this service was created a very long time ago and I think never truly used?

I recommend filing a support ticket, because the function and code behind this may not have been updated for a long time.