title: How to change comboBox items if i checked radioButton using c#
body: <p>if i choose radio Button the combo box items change.  </p>
  
  <p>if i choose another radio Button the combo box item change .</p>
  
  <pre><code>private void radioButton1_CheckedChanged(object sender, EventArgs e)
      {
          comboBox1.Items.Add("google");
          comboBox1.Items.Add("yahoo");
      }
  </code></pre>
  
  <p>How can I do this??  </p>