Treegrid - custom "tree" row


I want to have single cell on the “tree” row which covers the whole grid width so I can put an html div in it with data. At the moment I can only see how to put information into the “grid” columns, even on the tree row…

I have fiddled around but I can’t get it to work.

any feature or workaround or hack for this please ?

You may try to place a colspan in your row: