title: Server tags cannot contain <% ... %> constructs
body: <p>I am trying to use CDN for my images on the website.
  Problem is, sometimes I have server controls such as ImageButton, and I would like to use a class in order to fully extract the path of the CDN. for that purpose I tried doing:</p>
  
  <pre><code>&lt;asp:ImageButton runat="server" OnClick="Agree" ImageUrl="&lt;%=ResourceManager.GetImageCDN("iagree.png")%&gt;" /&gt;
  </code></pre>
  
  <p>and I get the title as error.</p>
  
  <p>Only if I'm using &lt;%# it will work (and only if I an databinding).
  How can I do this easily? how can I place CDN code on my markup code?</p>
  
  <p>Thanks!</p>