extendedDataTable without a table header

[lgsuperboss]

I want to have such a thing, no table header, no headline above the columns, just the content.

How to achieve that?

I tried to set the headerClass attribute or the captionClass attribute, simply to "none", but no effect

[ilya_shaikovsky]

https://jira.jboss.org/jira/browse/RF-7577