beamer parttoc with clickable links

Question

I try to generate a toc of parts with clickable links. I found this, but unfortunately it does not generate hyperlinks. I found the following suggestion that generates clickable links, but all these links refer to the parttoc itself.

\documentclass{beamer}
\usepackage[ngerman]{babel}
\usepackage{blindtext}
\newcommand{\dummyFrame}[1][1]{\begin{frame}{Test}\blindtext[#1]\end{frame}}
\usepackage{hyperref}
% for the list of parts
\makeatletter
\AtBeginPart{%
    \addtocontents{toc}{%
        \protect\beamer@partintoc{\the\c@part}{\beamer@partnameshort}{\the\c@page}%
    }%
    %    \setcounter{framenumber}{0}
    \frame{\partpage}
}
%% number, shortname, page.
\providecommand\beamer@partintoc[3]{%
    \ifnum\c@tocdepth=-1\relax
    % requesting onlyparts.
    \makebox[6em]{Einheit #1:} \textcolor{green!30!blue}{\hyperlink{#2}{#2}}
    \par
    \fi
}
\define@key{beamertoc}{onlyparts}[]{%
    \c@tocdepth=-1\relax
}
\makeatother%
\begin{document}
    \begin{frame}{Inhaltsübersicht}
        \tableofcontents[onlyparts]
    \end{frame}
\part{MyPart One}
    \dummyFrame
\part{MyPart Two}
    \dummyFrame
    \dummyFrame
\part{MyPart Three}
    \dummyFrame
    \dummyFrame
\end{document}

How can I make these links point to the right frame? Thanks in advance for any suggestions

Answer 1

You could give labels to the part frames which you can then use as link targets:

\documentclass{beamer}
\usepackage[ngerman]{babel}
\usepackage{blindtext}
\newcommand{\dummyFrame}[1][1]{\begin{frame}{Test}\blindtext[#1]\end{frame}}
\usepackage{hyperref}
% for the list of parts
\makeatletter
\AtBeginPart{%
    \addtocontents{toc}{%
        \protect\beamer@partintoc{\the\c@part}{\hyperlink{part-\thepart}{\beamer@partnameshort}}{\the\c@page}%
    }%
    %    \setcounter{framenumber}{0}
    \frame[label=part-\thepart]{\partpage}
}
%% number, shortname, page.
\providecommand\beamer@partintoc[3]{%
    \ifnum\c@tocdepth=-1\relax
    % requesting onlyparts.
    \makebox[6em]{Einheit #1:} \textcolor{green!30!blue}{#2}
    \par
    \fi
}
\define@key{beamertoc}{onlyparts}[]{%
    \c@tocdepth=-1\relax
}
\makeatother%
\begin{document}
    \begin{frame}{Inhaltsübersicht}
        \tableofcontents[onlyparts]
    \end{frame}
\part{MyPart One}
    \dummyFrame
\part{MyPart Two}
    \dummyFrame
    \dummyFrame
\part{MyPart Three}
    \dummyFrame
    \dummyFrame
\end{document}