Hi,
Using this (but it's not exactly what I want) it works
test-1.tex %%%%%%%%%%%%%%
\setuppagenumbering
[alternative=doublesided,location=]
\definelayout
[1]
[header=10mm]
\setuplayout
[header=0pt,
height=middle]
\setupbackgrounds
[header]
[text]
[frame=off,bottomframe=on,
framecolor=lightgray,rulethickness=1pt]
\starttext
\dorecurse{5}{\samplefile{lorem}}
%\dorecurse{1}{\samplefile{lorem}}
\stoptext
%%%%%%%%%%%%%%%%%%ù
Using this (almost what I'm trying to do) without success
test-2.tex %%%%%%%%%%%%%
\setuppagenumbering
[alternative=doublesided,location=]
\setupbackgrounds
[header]
[text]
[frame=off,bottomframe=on,
framecolor=lightgray,rulethickness=1pt]
\startsetups[header]
\doifelse{\totalnumberofpages}{1}
{\setupheadertexts[\setups{header}]}
{}
\stopsetups
\starttext
\dorecurse{5}{\samplefile{lorem}}
%\dorecurse{1}{\samplefile[lorem]r}
\stoptext
%%%%%%%%%%%%%%%%%%%
Fabrice
Le jeu. 26 août 2021 à 17:56, Wolfgang Schuster via ntg-context <
ntg-context@ntg.nl> a écrit :
> Taco Hoekwater via ntg-context schrieb am 26.08.2021 um 16:34:
> >
> > Hi,
> >
> >> On 26 Aug 2021, at 16:07, Fabrice Couvreur via ntg-context <
> ntg-context@ntg.nl> wrote:
> >>
> >> Hi,
> >> I know I asked the question a few years ago, but I don't remember !
> >> The idea is to test whether the document contains only one page or not.
> >
> > Perhaps not the nicest solution, but this works:
> >
> > \doifvalueelse
> > {\lastpage}
> > {1}
> > {\message{true}}
> > {\message{false}}
>
>
> Same solution but better counter name:
>
> \doifelse{\totalnumberofpages}{1}{...}{...}
>
> Wolfgang
>
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