Recommended session management

[paul.hester]

Hi all,

I'm used to developing with classic ASP where I will have a common
include file that assigns session variables to page variables and
initialises them if empty/null.

What is the recommended way to do this in ASP .NET so that these "page"
variables are accessible to all of the pages in the website?

I just want a convenient way to initialise these values if empty and
have them accessible in every page without having to repeat the logic.

Thanks,

Paul