title: How to pass the user selected value from radioGroup to a action?
body: <p>I have a radio button group like this : </p>
  
  <pre><code>&lt;g:radioGroup name="myGroup" values="[1,2,3]" value="1" &gt;
  &lt;p&gt;&lt;g:message code="${it.label}" /&gt;: ${it.radio}&lt;/p&gt;
  &lt;/g:radioGroup&gt;
  </code></pre>
  
  <p>Lets say that this in view named <code>questions</code>. User will select any answer from this and he will click a button named <code>calculate</code>. Which will redirect him to another action named <code>calculate</code>. Now in this action, how come I get the user selected answer from <code>questions</code> page?</p>
  
  <p>Actually I will be having 70+ question on <code>questions</code> view page. How do I manage those? Any suggestions?</p>
  
  <p>Thanks in advance.</p>