title: How do I add an empty first entry do an <asp:DropDownList>?
body: <p>I have a dropdown, I have a datasource, I have <code>AutoPostBack</code> set to <code>true</code>.<br>
  I want to add a first entry to the datasource that says something like "--- select country ---" and selecting this entry won't cause postback.<br>
  This feels like it should be easy to do, yet I can't seem to be able to find a good solution.<br>
  Thanks.</p>