Graphics, Figures & Tables ⇒ colortbl, tabularx | Centering Error

[k_lau]

Hi,

I'm trying to combine a tabularx table with centered text using colortbl to colour the columns.
I wish to equally space the columns so I'm using the column type X for each column header.
With this I'm trying to using \centering with the \columncolor as follows:

Code: Select all

\newcolumntype{y}{>{\columncolor{LightGray}\centering}X}

But see the error:

! Misplaced \noalign.
\hline ->\noalign
{\ifnum 0=`}\fi \let \hskip \vskip \let \vrule \hrule \let...
l.62 \end{tabularx}

When I centre the columns or color them individually it works (see example code)

Many thanks for your assistance!

Kevin (Long time reader, first time poster)

--- Example code ---

Code: Select all

\documentclass[10pt,a4paper]{report}
%
\usepackage{color}
\definecolor{LightGray}{rgb}{0.83,0.83,0.83}
%
\usepackage{colortbl} 
\usepackage{tabularx}
%
\newcolumntype{z}{>{\columncolor{LightGray}}X}
\newcolumntype{y}{>{\columncolor{LightGray}\centering}X}
%
\begin{document}
%
\begin{table}[h!]
%
\centering
\caption{ABC}
%
\begin{tabularx}{1.0\columnwidth}{X X X}
A 	& B	& C 	\\ \hline
1	& P	& I	\\
2	& Q	& J	\\
3	& R	& K		
\end{tabularx}
%
\end{table}
%
\begin{table}[h!]
%
\centering
\caption{XYZ}
%
\begin{tabularx}{1.0\columnwidth}{z z z}
A 	& B	& C 	\\ \hline
1	& P	& I	\\
2	& Q	& J	\\
3	& R	& K		
\end{tabularx}
%
\end{table}
%
\begin{table}[h!]
%
\begin{tabularx}{1.0\columnwidth}{y y y}
A 	& B	& C 	\\ \hline
1	& P	& I	\\
2	& Q	& J	\\
3	& R	& K		
\end{tabularx}
%
\end{table}
%
%
\end{document}

[localghost]

You have to restore the \\ command for a new table line with the \arraybackslash command at least for the last column.

Code: Select all

\newcolumntype{y}{>{\columncolor{LightGray}\centering\arraybackslash}X}

This is necessary as soon as you have e. g. justification commands like \centering in »X« column types.

As far as I remember this is documented in the array manual. This package is loaded by the colortbl package.

By the way, it is better to let xcolor load the colortbl package by its »table« option.

Code: Select all

\usepackage[table,dvipsnames]{xcolor}

The package manual has the details, especially regarding predefined colors by package options.

PS: Good example.


Best regards and welcome to the board
Thorsten

[k_lau]

Many thanks! It works perfectly now.

Kevin