[Tex/LaTex] Coloring rows with longtable

colortablesxetex

I am using longtable to draw a table that spans a few pages. I also added code to alternate colors for rows in the table.

Is there a way to colorize the first row with a different color?
How can I ensure that the caption string is not colorized?

My MWE is below

\PassOptionsToPackage{table}{xcolor}
\documentclass{book}
\usepackage{fontspec}
\usepackage{longtable}

\renewcommand{\baselinestretch}{1.5}
\usepackage{titlesec}

\newcounter{magicrownumbers}
\newcommand\rownumber{\stepcounter{magicrownumbers}\arabic{magicrownumbers}}
\usepackage[dvipsnames]{xcolor}

\definecolor{light-gray}{HTML}{E5E4E2}
\definecolor{light-cyan}{HTML}{E0FFFF}


\begin{document}
\def\arraystretch{1}
\begin{center}
\rowcolors{1}{light-cyan}{light-gray}
\begin{longtable}{|p{.10\textwidth}| p{.98\textwidth}| p{.10\textwidth}|} 

\hline
serial num. & sutra & sutra number   \\
\hline
\rownumber & foo &1-1-56 \\
\hline
\rownumber  & bar & 1-1-57  \\
\hline
\caption{caption for this table}
\end{longtable}
\end{center}
\end{document}

Best Answer

You can change row colour with \rowcolor{} for the header rows and use \hiderowcolors and \showrowcolors to avoid colouring the caption.

For example:

\documentclass{article}
\usepackage{longtable}
\usepackage[dvipsnames,table]{xcolor}

\definecolor{light-gray}{HTML}{E5E4E2}
\definecolor{light-cyan}{HTML}{E0FFFF}

\begin{document}
\rowcolors{1}{light-cyan}{light-gray}
\begin{longtable}{|*{3}{p{.3\textwidth}|}}
  \hiderowcolors
  \caption{Fine caption}\\
  \showrowcolors
  \hline
  \rowcolor{magenta}Head 1 & Head 2 & Head 3\\\hline\endfirsthead
  \hline
  \rowcolor{yellow}Head 1 & Head 2 & Head 3\\\hline\endhead
  \hline\endfoot
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
  Content 1 & Content 2 & Content 3\\
\end{longtable}
\end{document}

Note that I take no responsibility for failures of typographical aesthetics in this answer which should be understood as demonstrating how to implement a purely hypothetical set of desiderata.

That is, I don't recommend this and wouldn't do it, but if you must, you can.

Related Solutions

[Tex/LaTex] Table with colored rows alternating every n rows

This shows one way of adding a counter that increments every row and then having an arbitrary set of tests to switch colours on some condition. This starts off with no background switches to green on row 4 stays green until row 7 when it switches to blue, goes back to no background at row 13, then cycles round again every 20 rows.

enter image description here

\documentclass{article}

\usepackage{colortbl}
\newcounter{myc}
\makeatletter
\def\myrow{}
\CT@everycr{\noalign{%
\global\let\CT@row@color\relax
\stepcounter{myc}%
\ifnum\value{myc}=4
  \gdef\myrow{\rowcolor{green}}
\else\ifnum\value{myc}=7
  \gdef\myrow{\rowcolor{blue}}
\else\ifnum\value{myc}=13
  \gdef\myrow{}
\else\ifnum\value{myc}=20
  \setcounter{myc}{0}
\fi\fi\fi\fi
}\myrow}



\begin{document}
\small

\begin{tabular}{>{[\themyc]}ll}
a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\
a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\
a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\
a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\
a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\a&a\\
\end{tabular}
\end{document}

[Tex/LaTex] Coloring rows and columns in a tabular environment

colortbl fairly arbitrarily gives row color precedence over column color, if you wish to reverse that decision you just need to change the order of \CT@column@color and \CT@row@color You can do this by applying a patch macro as below:

enter image description here

\documentclass[12pt]{article}
\usepackage[margin=1cm,landscape,paperwidth=3in,paperheight=3in]{geometry}
\usepackage{amsmath,booktabs,colortbl}
\usepackage[table]{xcolor}

\makeatletter
\def\tmpp#1\@addtopreamble#2#3!{%
    \tmp#2!{#1}{#3}}



\def\tmp#1\CT@column@color\CT@row@color#2!#3#4{%
\def\@classz{#3\@addtopreamble{#1\CT@row@color\CT@column@color#2}#4}}

\expandafter\tmpp\@classz!
\makeatother
\pagestyle{empty}

\begin{document}
\newcolumntype{M}{>{$}c<{$}}
\newcolumntype{P}{>{\columncolor{gray!75}}M}
\rowcolors{2}{gray!25}{}
\begin{tabular}{|MPM|}
\hline
x_1 & y_1 & z_1 \\
x_2 & y_2 & z_2 \\
x_3 & y_3 & z_3 \\
x_4 & y_4 & z_4 \\
x_5 & y_5 & z_5 \\
x_6 & y_6 & z_6 \\
\hline
\end{tabular}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Table with colored rows alternating every n rows

[Tex/LaTex] Coloring rows and columns in a tabular environment

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