# fancyhdr: putting part in fancyhdr

For my dissertation I've redefined \thechapter as \thepart because I'm only using parts, sections and subsections. With the code below I get the section as the right header but nothing on the left. How do I get the part to appear on the left?

\renewcommand{\thechapter}{\thepart}

\usepackage{fancyhdr}
\pagestyle{fancy}
\renewcommand{\chaptermark}[1]{\markboth{\MakeUppercase{\parttitle.\ #1}{}}}
\renewcommand{\sectionmark}[1]{\markright{\thesection.\ #1}{}}
\renewcommand{\cfoot}{\thepage}

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possible duplicate of How to get part name in LaTeX ? –  lockstep Mar 17 '12 at 21:35
@lockstep There are other approaches than thru \partname, as you can see in my answer. –  yo' Mar 17 '12 at 21:45

This code does the job. It redefines LaTeX internal command \@part to call \markboth. Package lipsum is there to provide some dummy text.

As well, I cleaned the code:

• You don't need to redefine \sectionmark nor \chaptermark.
• There is no command \parttitle, it's \partname.
• You should use \fancyfoot and don't redefine \cfoot.

The code:

\documentclass{book}

\renewcommand{\thechapter}{\thepart}

\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyfoot{}
\fancyfoot[C]{\thepage}
\makeatletter
\let\old@part\@part
\def\@part[#1]#2{\old@part[#1]{#2\markboth{\MakeUppercase{\partname.\ #1}}{}}}
\makeatother

\usepackage{lipsum}

\begin{document}

\part{PP}

\section{SS}

\lipsum[1-10]

\end{document}

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Thanks very much for your help. I redefined \sectionmark so that it was in lowercase but your changes worked perfectly. Unfortunately on the first page of each part (the page after the separating page) the \sectionmark no longer appears, even though it does on the subsequent pages. I was wondering if you know how to fix this? –  Tino Mar 17 '12 at 22:02
I modifed the code. Only the longest line of the code got changed. –  yo' Mar 17 '12 at 22:08