Question

I have to discriminate some page elements (image, css, …) on the base of what a user choose at the first page.

I use <%=Expression%> like this:

<img id="imgBackground" src='<%= this.GetLinkBasedOnUser("img/background1.jpg") %>' />

The method GetLinkBasedOnUser do a simple string concatenation.
I like this way because I’m try to keep the “user interface” separate from the code.

BUT…

<link href="<%= this.GetLinkBasedOnUser('css/cssStyle1.css') %>" rel="stylesheet" type="text/css" /> 

Answer 1

try this :

<link href='<%= this.GetLinkBasedOnUser("css/cssStyle1.css") %>' rel="stylesheet" type="text/css" />

strings in c# requires having " as string delimiters, not ' (char)