14

I have a problem using with the package lontable and multirow together.

It seems that the \* is not avoiding the page breack, if I'm using \cline{i-j} just afterwards.

Here the original code for test.pdf:

\documentclass{article}
\usepackage{longtable}
\usepackage{multirow}
\begin{document}
\begin{longtable}{|c|p{1cm}|p{2cm}|p{5cm}|}
\hline
{} & {\bf ID} & {\bf name} & {\bf short Description} \\ \hline
\multirow{2}{*}{\bf 1} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
....
\multirow{2}{*}{\bf 21} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 22} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 23} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
....
\multirow{2}{*}{\bf 35} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\end{longtable}
\end{document}

Each record of this table is composed by 2 lines.

The results of this code is to break the record 22 in two pages: first line in page 1 and second line in page 2. That means that \* is not working properly.

\* seems to work correct if I remove \cline{2-4] corresponding to the record 22. This is the source code:

\documentclass{article}
\usepackage{longtable}
\usepackage{multirow}
\textheight=5\baselineskip
\begin{document}
\begin{longtable}{|c|p{1cm}|p{2cm}|p{5cm}|}
\hline
{} & {\bf ID} & {\bf name} & {\bf short Description} \\ \hline
\multirow{2}{*}{\bf 1} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 21} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 22} & \multirow{2}{*}{test1} & {name}& {short descrition} \\*
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 23} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 35} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\end{longtable}
\end{document}

The record 22 is not divided in two pages anymore, but it there is no cline.

How can I maintain the partial horizontal line, and at the same time avoid the pagebreack?

David Carlisle
  • 757,742
Gabriele
  • 141
  • 2
    Welcome to tex.sx! This would be easier to debug if your MWE showed the problem (ie the cline occurred at the page break) If you add \textheight=5\baselineskip to your preamble you can have short pages so do not need a bigger. I have updated your MWE this time. Also there is no need to sign your name as the system adds your identifier to the end of the post. – David Carlisle Apr 16 '12 at 09:45

1 Answers1

16

longtable doesn't do anything special with \cline Perhaps it should. This inserts a \nobreak in the right place:

\documentclass{article}
\usepackage{longtable}
\usepackage{multirow}
\textheight=5\baselineskip
\makeatletter
\def\@cline#1-#2\@nil{%
  \omit
  \@multicnt#1%
  \advance\@multispan\m@ne
  \ifnum\@multicnt=\@ne\@firstofone{&\omit}\fi
  \@multicnt#2%
  \advance\@multicnt-#1%
  \advance\@multispan\@ne
  \leaders\hrule\@height\arrayrulewidth\hfill
  \cr
  \noalign{\nobreak\vskip-\arrayrulewidth}}
\makeatother
\begin{document}
\begin{longtable}{|c|p{1cm}|p{2cm}|p{5cm}|}
\hline
{} & {\bf ID} & {\bf name} & {\bf short Description} \\ \hline
\multirow{2}{*}{\bf 1} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 21} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 22} & \multirow{2}{*}{test1} & {name}& {short descrition} \\*
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 23} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\multirow{2}{*}{\bf 35} & \multirow{2}{*}{test1} & {name}& {short descrition} \\* \cline{3-4}
& & \multicolumn{2}{c|}{detailed description} \\ \hline
\end{longtable}
\end{document}

So that the breaks happen at \hline only:

enter image description here

David Carlisle
  • 757,742
  • Thank you very much. It seems to work fine now... this is really the end of a long nightmare! – Gabriele Apr 16 '12 at 10:17
  • I'm trying to adarpt your solution to booktab's \midrule and \cmidrule(lr){a-b}.

    My attempt doesn't work, unfortunately, so I may have to start a new question:

    \makeatletter \def\@cmidrule[#1-#2]#3#4\@nil{% \omit \@multicnt#3% \advance\@multispan\m@ne \ifnum\@multicnt=\@ne\@firstofone{&\omit}\fi \@multicnt#4% \advance\@multicnt-#4% \advance\@multispan\@ne \leaders\midrule\@height\arrayrulewidth\hfill \cr \noalign{\nobreak\vskip-\arrayrulewidth}} \makeatother

     – Lucas Mar 16 '22 at 22:04
  • @Lucas looking at bookabs.sty looks like you intnded to redefine \@@@cmidrule with thre @ not one. also you are omiting most of the booktabs definiion – David Carlisle Mar 16 '22 at 22:15