title: Two Radio buttons with different messages when checked
body: <p>I need use two radio buttons; one is ON and another is OFF.</p>
  
  <p>When we click on any radio button, the application shows me both messages! How do I make it show only the message for the radio button clicked?</p>
  
  <pre><code>    private void rB_OFF_CheckedChanged(object sender,EventArgs e)
      {
      MessageBox.Show("You clicked OFF");
      }
  
      private void rB_ON_CheckedChanged(object sender,EventArgs e)
      {
      MessageBox.Show("You clicked ON");
      }
  </code></pre>