title: select last added list item in combo box
body: <p>iam using combobox, not bounded to data source in c#.</p>
  
  <pre><code>cmbBox.Items.Add("apple");
  cmbBox.Items.Add("orange");
  cmbBox.Items.Add("banana");
  </code></pre>
  
  <p>Now I want to set SelectedIndex to finally added "banana", but cannot use
      cmbBox.SelectedIndex = cmbBox.Items.count -1;
  as the combo box is sorted !</p>
  
  <p>Any tips please ?</p>