Expressions in RS..

Hey guys,
I try to hide some sections of my report using the expression editor.
I tryed to find what language the expression editor is but I did not found
it.
Does someone knows any references about expressions in RS?
Thanks!VB.Net. I sometimes open up a VB project to test out expressions before
using them in RS. Same with code behind reports.
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"Dominic Feron" <dominic.feron@.dessausoprin.com> wrote in message
news:uJ37Cv$eFHA.580@.TK2MSFTNGP15.phx.gbl...
> Hey guys,
> I try to hide some sections of my report using the expression editor.
> I tryed to find what language the expression editor is but I did not found
> it.
> Does someone knows any references about expressions in RS?
> Thanks!
>