Chapter base Page numbering to TOC

[Luqman H]

hi,

i'm using Report Document style
i want my chapter look like this:
Chapter I
Chapter II
Chapter III

and the page number (for ex. Chapter 3 page 5) like this:
III-5

i use this command in ERT:
\renewcommand{\headrulewidth}{0pt}
\rhead{}
\lhead{}
\rfoot{\thechapter-\thepage}
\lfoot{}
\cfoot{}

but it only shows page number like: 3-5

and of course for the TOC, i want the page numbering shows
..... III-5
..... III-6

is it possible? how to do that ?



thanks...