title: How to retrieve the value of a binding property of a RadioButton which is part of InputListItem and has aggregationbinding?
body: <p>I have the below code on jsbin that I am trying. I need to get the value of the "Id" property mentioned in the model "answers". Til now while trying I understood that I need to use the select event to alert the selected value.
  I also tried using <code>event.getSource().getSelectedItem().getBindingContext().getObject().Id</code>
  But I am not able to get the "Id" property value.
  You can find the code which I am trying on below jsbin:
  <a href="http://jsbin.com/peciqaq/1/edit?html,output" rel="nofollow noreferrer">http://jsbin.com/peciqaq/1/edit?html,output</a></p>