Same Header on different slides with beamer and longtable

Question

When using the Longtable package in a LaTeX Beamerdocument, how can I create a table header shown on every slide containing table contents? The following approach seems not to work:

\begin{frame}[allowframebreaks]{title}
\begin{longtable}{cc}
a & b \\ \endfirsthead
c & d \\ \endhead
fooooooooooo & Bar\\ 
fooooooooooo & Bar\\ 
...
\end{longtable}
\end{frame}

The headerline with "c d" is never shown. This behaviour doesn't seem right.

Answer 1

use another package:

\documentclass{beamer}
\usepackage{xtab}

\begin{document}

\begin{frame}[plain,allowframebreaks]{title}
\tablefirsthead{a & b \\}
\tablehead{c & d \\}

\begin{xtabular}{cc}
fooooooooooo & Bar\\ 
fooooooooooo & Bar\\ 
...
\end{xtabular}
\end{frame}