title: How to assign a hidden integer value to a RadioButton?
body: <p>For example I have Four RadioButtons in a ToggleGroup with integer values 0,1,2,3. When the user clicks on One radio Button, I want to get its value.</p>
  
  <p>I want to use the solution to this to get that value to use as an index to a List.</p>
  
  <p>For example:
   The user clicks the third Radio Button. That RadioButton must have a value of 2.</p>
  
  <p>If there were any other way to assign significant values to radioButton I would gladly hear it. Thanks </p>