Why does not cross-referencing of exercises work with `exsheets`?

Question

I am trying to use cleveref package to create custom referencing scheme for exercises created using exsheets. I customize cross-referencing of floats and equations very well using codes similar to the one below.

The output of the code below does not show any correct referencing to any question. Even debugging using \SetupExSheets{debug=true} shows that questions have not been tagged.

My source code

\documentclass[]{book}
\usepackage[no-math]{fontspec}

\usepackage{cleveref}

    \crefformat{question}{Question. (#1)}
    \crefrangeformat{question}{Questions. (#1) to (#2)}
    \crefmultiformat{question}{Questions. (#1)}{ and (#1)}{, (#1)}{ and (#1)}
    \crefrangemultiformat{question}{Questions. (#1) to (#2)}{ and (#1) to (#2)}{, (#1) to (#2)}{ and (#1) to (#2)}


\usepackage{exsheets}

\SetupExSheets[points]{format=\bfseries, number-format=\itshape}            
\SetupExSheets{counter-format=\thesection.(qu[A]), counter-within=section}
\SetupExSheets{solution/print=true}
\SetupExSheets{debug=true,auto-label={false},ref-cmd={\cref},label-format={#1}}


\begin{document}


\chapter{My Chapter}



\section{Section 1}

\begin{question}
    \label[question]{qu:1}
    Question
\end{question}

\begin{solution}
    \label[question]{qu:2}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:3}
    Question
\end{question}

\begin{solution}
    \label[question]{qu:4}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:5}
    Question
\end{question}

\begin{solution}
    \label[question]{qu:7}
    Solution
\end{solution}



\section{Section 2}

\begin{question}
    \label[question]{qu:6}
    Question
\end{question}

\begin{solution}
    \label[question]{qu:7}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:8}
    Question
\end{question}

\begin{solution}
    \label[question]{qu:9}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:10}
    Question
\end{question}

\begin{question}
    \label[question]{qu:10}
    Question
\end{question}


\cref{qu:1,qu:2,qu:3,qu:4,qu:5}

\cref{qu:1,,qu:2,,qu:3,,qu:4,,qu:5}

\cref{qu:1,qu:6,qu:9,qu:2,qu:3,qu:4,qu:5,,qu:10}

\end{document}

Answer 1

We use \renewcommand{\thequestion}{\thesection.(\Alph{question})}. We can edit the representation as we wish. A more generalized case could be:

\renewcommand{\thequestion}{\the<parent label><type of seperation>(\<type of numbering>{question})}

The definition we write here must match the one we write by counter-format option in \SetupExSheets. Otherwise, the equation tag could be something like 1.3 while \cref output could be 1.III.

\documentclass[]{book}
\usepackage[no-math]{fontspec}

\usepackage[x11names]{xcolor}
\usepackage{exsheets}

\SetupExSheets[points]{format=\bfseries, number-format=\itshape}            
\SetupExSheets{counter-format=\thesection.(qu[A]), counter-within=section}
\SetupExSheets{solution/print=true}
\SetupExSheets{debug=true,auto-label={false},ref-cmd={\cref},label-format={#1}}

\usepackage{hyperref}
\hypersetup{linkcolor=DodgerBlue3, colorlinks=true}

\usepackage{cleveref}

\crefformat{question}{Question #2#1#3}
\crefrangeformat{question}{Questions #3#1#4 to #5#2#6}
\crefmultiformat{question}{Questions #2#1#3}{ and #2#1#3}{, #2#1#3}{ and #2#1#3}
\crefrangemultiformat{question}{Questions #3#1#4 to #5#2#6}{ and #3#1#4 to #5#2#6}{, #3#1#4 to #5#2#6}{ and #3#1#4 to #5#2#6}
\renewcommand{\thequestion}{\thesection.(\Alph{question})}

\begin{document}


\chapter{My Chapter}



\section{Section 1}

\begin{question}
    \label[question]{qu:1}
    Question
\end{question}


\begin{solution}
    \label[solution]{sol:1}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:2}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:2}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:3}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:3}
    Solution
\end{solution}



\section{Section 2}

\begin{question}
    \label[question]{qu:4}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:4}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:5}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:5}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:6}
    Question
\end{question}

\begin{question}
    \label[question]{qu:7}
    Question
\end{question}

\begin{question}
    \label[question]{qu:8}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:6}
    Solution
\end{solution}

\begin{question}
    \label[question]{qu:9}
    Question
\end{question}

\begin{solution}
    \label[solution]{sol:7}
    Solution
\end{solution}


\newpage
\cref{qu:1}

\cref{qu:1,qu:2,qu:3}

\cref{qu:4,,qu:5,,qu:6}

\cref{qu:1,qu:2,qu:3,qu:5,qu:6,qu:9}

\cref{qu:2,qu:3,qu:5,qu:6,qu:7,qu:8,,qu:9}

\cref{qu:1,qu:2,qu:3,qu:5,qu:6,qu:7,qu:8,qu:9}


\end{document}