title: Enable text box based on radio button selected
body: <p>I have a Radio Button List that lists different business categories.  The last option is the <code>Other</code> category.  When the user selects the <code>Other</code> category, I want to be able to enable a text box that the user can then enter further information to explain the <code>Other</code> selection.</p>
  
  <p>Currently, I am attempting </p>
  
  <pre><code>    If rblCategory.SelectedIndex = 20 Then
          txtOther.Enabled = True
          lblOther.Text = rblCategory.SelectedItem.Text()
      End If
  </code></pre>
  
  <p>In this excerpt, I am basing it on the index, but I've also tried basing it on the Text field as well as the Value field, but I still have not gotten it to work.  Any suggestions?</p>