pgfplotstable: How to use the read out row- (column-) value for styles

Question

I want to color a row (column) from a cell with special content, e.g. 'x'. 
I tried to use 
every nth row={rememberrow}{before row=rowcolor{orange}}, % WORKS NOT! 
in the solution.
xdefremembercol{pgfplotstablecol}%
xdefrememberrow{pgfplotstablerow}%

expands correctly after the pgfplotstabletypeset, but not while the typeset.
What do I have to do?
documentclass[]{article}
usepackage{colortbl}
usepackage{pgfplotstable}
pgfplotsset{compat=newest}
pgfplotstableset{string type, col sep=comma, header=false}
pgfplotstableread[]{
a, b, c
d, e, f
g, x, i
j, k, l
}mytable

defliteralx{x}

begin{document}
pgfplotstabletypeset[
postproc cell content/.code={%
  deftemp{#1}%
  ifxtempliteralx
    xdefremembercol{pgfplotstablecol}%
    xdefrememberrow{pgfplotstablerow}%
  fi
}, 
%every nth row={rememberrow}{before row=rowcolor{orange}}, % WORKS NOT!
]{mytable}

textbf{Works:} x is in row no.~rememberrow and column no.~remembercol.
end{document}

cis · Accepted Answer

With savebox and newcommand it works:

documentclass[]{article}
usepackage{colortbl}
usepackage{pgfplotstable}
pgfplotsset{compat=newest}

pgfplotstableset{string type, col sep=comma, header=false}
pgfplotstableread[]{
a, b, c
d, e, f
g, x, i
j, k, l
}mytable

colorlet{CellColor}{red}
colorlet{RowColor}{orange}
colorlet{ColColor}{pink}

defliteralx{x}
begin{document}

pgfplotstableset{   myhighlights/.style={}    }
newcommandMyTable{%
pgfplotstabletypeset[myhighlights,
postproc cell content/.code={%
  deftemp{##1}% <--- !   '##',    not '#'
  ifxtempliteralx
    xdefremembercol{pgfplotstablecol}%
    xdefrememberrow{pgfplotstablerow}%
  fi
}, 
]{mytable}%
}

newsavebox{Mybox}
savebox{Mybox}{MyTable}

section{Raw Table}
usebox{Mybox}

section{Read out row and column -- works}
x is in row no.~rememberrow and column no.~remembercol.

section{Typeset highlighted Table -- works as well}
pgfplotstableset{myhighlights/.style={%% =======
% Highlight Row:
every row no rememberrow/.style={
before row={rowcolor{RowColor}}        }, 
% Highlight Column:
every col no remembercol/.style={
column type/.add={>{columncolor{ColColor}}}{}       }, 
% Highlight Cell
every row no rememberrowspace column no remembercol/.style={  
@cell content/.add={cellcolor{CellColor}}{},      },% <--- !  'space'
}%% =======
}
MyTable
end{document}

pgfplotstable: How to use the read out row- (column-) value for styles

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