For some reason, the title attribute of a cell has been removed from the XML bestiary. It still works though.
The default tooltip for a cell is the cell contents. To override that and enter your own text for a tooltip, use in the XML:
I don’t know how you can set a cell title from Javascript.
To set title from xml you can use setAttribute() method of the cell object docs.dhtmlx.com/doku.php?id=dhtm … nal_data&s[]=setAttribute#attributes
The problem is not so much that the title can be set in a variety of different ways but that the documentation does not mention the title attribute anywhere (as far as I can see).
My biggest complaint about the DHTMLX widgets is that the documentation is incomplete and inadequate. A shame really as in use they are really good quality.