title: Populate values in double select box in struts2
body: <p>I am populating the values in double select box dynamically from database at the time of loading.</p>
  
  <p>I am successful in getting the values for the first select box but I am not getting the respective values for second select box.       </p>
  
  <p>Please if any body can help me to get the values in the second select I am really in need.</p>
  
  <p>I am using the MAP collection.</p>
  
  <pre><code>&lt;s:doubleselect label="Control" 
  name="controlNameValue" list="control.keySet()" 
  doubleName="controlAreaValue" doubleList="control.get(top)" /&gt;
  </code></pre>