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:

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Hi,

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On 26 Aug 2021, at 16:07, Fabrice Couvreur via ntg-context <

ntg-context@ntg.nl> wrote:

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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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