how to pass a value from code behind to aspx page using inline code?

[dotnet]

I am trying to make a page that is changing
the page schema(colors and graphics)
depends on the specific value (for example, test.aspx?page=1)

I have so far achieved accepting page values
(with c# code behind, request["page"]).

Now I need to pass back to all the schema values to aspx page;
however, it doesn't seem to work by using inline code(<%=value1>,
value1 was assgined in code behind) in my aspx page.

Anybody could help?

Thanks in advance.