作者：    来源：    点击：    日期：2007-3-18 23:32:30   

The ASP page dynastyle.asp can now create the correct properties of the style sheet rules dynamically based on the querystring value. For this article, I decided to make the code for dynastyle.asp fairly simple - the style sheet contents are simply hard-coded in. A more flexible solution, though, would be to have the style sheet values pulled from a database. The code for dynastyle.asp can be seen below:

<%@ LANGUAGE=VBSCRIPT %>
<%Option Explicit%>
<%
Dim cardtype, light_color, dark_color, cardimage

'Read in the querystring value
cardtype = request.querystring("cardtype")

'Set our stylesheet values based on the
'querystring value passed in
select case cardtype
  case "gold"
    light_color = "gold"
    dark_color = "navy"    
    cardimage = "goldcard.gif"
  case "platinum"
    light_color = "silver"
    dark_color = "green"    
    cardimage = "platinumcard.gif"
  case "standard"
    light_color = "#ddffdd"
    dark_color = "#339933"    
    cardimage = "standardcard.gif"
end select
%>

h2 { FONT-FAMILY: Arial; FONT-STYLE: italic;
     COLOR: <%= dark_color %> }
     
li {LIST-STYLE-IMAGE: URL("<%= cardimage %>");}

table.transactions{BACKGROUND-COLOR:<%= light_color %>;
    COLOR:<%= dark_color %>;
    BORDER: THICK DOUBLE <%= dark_color %>;}

.reverse{BACKGROUND-COLOR:<%= dark_color %>;
    COLOR:<%= light_color %>;}




That's all there is to it. Other triggers, such as cookies and session variables, can also be used to vary the style sheet content from one user to another.

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