HI Pablo,
This works perfectly
Thank you
Fabrice

2017-08-09 16:23 GMT+02:00 Pablo Rodriguez <oinos@gmx.es>:
On 08/09/2017 02:59 PM, Fabrice Couvreur wrote:
> Hello,
> How do I make the header appear on the first page only ?
> Thank you
> Fabrice

Hello Fabrice,

a workaround would be to suppress header dimension for all pages other
than the first one.

    \definelayout
      [noheader]
      [header=2\lineheight,
       headerdistance=\lineheight,
       backspace=2cm,
       width=middle,
       topspace=\lineheight]

    \setuplayout
      [header=\zeropoint,
       headerdistance=3\lineheight,
       backspace=2cm,
       width=middle,
       topspace=2cm]

    \definelayout[1][noheader]

    \setupbackgrounds[header,state=start][text][frame=off,
bottomframe=on,framecolor=gray,rulethickness=2pt]

    \setupheader[style=bold]

    \setuppagenumbering
        [alternative=,
        location=footer]

    \defineframed[headerframed]
                 [frame=off,
                  location=depth,
                  bottomoffset=\lineheight,
                  align=middle,
                  width=fit]

    \setupheadertexts[\headerframed{\ss \sc \bf
        \red Contrôle n\high{o}\,1 \\ }]
    \setupheadertexts[\headerframed{\tfx \ss Lycée JANSON DE SAILLY\\
            31 juillet 2017}]
        [\headerframed{\tfx \ss T\high{le} ES 2 \\ Durée 1 heure 30}]

    \starttext
    \dorecurse{6}{\input knuth}
    \stoptext

Just in case it helps,

Pablo
--
http://www.ousia.tk
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________