Alan, I noticed this too - it does look odd - and I couldn’t find a command to do it, so I found a work-around…
Because my listboxes have the zebra stripes (every 2nd row has a light grey background), I simply reversed the order of the row colour in the design window - the grey ones now come first so there “seems” to be a header border. HTH, Keith > Any idea how to set horizontal gridline only for header but not rows in > Listbox in 4D 15.5? > > On Mac, there’s horizontal line for header automatically which looks good. > However, on Windows 10, no line for header which looks odd... ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************