I have tried to use the style definition of the setHeader directive as suggested in the old knowledge-base article, i.e.
mygrid.setHeader(‘Long header with nowrap,Another long header’,’’,[‘white-space:nowrap; overflow:hidden;’,’’]);
The header height still increases and the header text still wraps, either at the white space or letter by letter when the browser re-sizes to a smaller window size. The header eventually becomes about 5cm in height.
My grid is the commercial version v.2.1 build 90316
Please help