title: Eval function is C#
body: <p>I need some help in understanding what the Eval bit does (Just started learning C#.net):</p>
  
  <pre><code>&lt;asp:Image 
   ID="Image1" 
   ImageUrl='&lt;%# Eval("Name", "~/UploadImages/{0} %&gt;'
   ...
  </code></pre>
  
  <p>The image is in a datalist repeater which has been binded to a folder containing images files.</p>
  
  <p>I'm confused with the "Name" and {0}.. what is the significance of these and in what situation can I change them.</p>