title: Datalist showing data that is not in database
body: <p>I have a <code>datalist</code> which is populated by data from database. In the meanwhile I droped my database and created another one, but with the same name, tables and everything, only some small changes. </p>
  
  <p>Problem is that <code>datalists</code> are showing data from previous database. When I drop down <code>datalist</code>, first is shown data from current database, but then there is horizontal line, and below it old data is shown with yellow background. How can I stop <code>datalists</code> showing old data? </p>
  
  <p><a href="https://i.stack.imgur.com/Mqpfg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Mqpfg.png" alt="enter image description here"></a></p>