title: WinForm: Merge ContextMenuStrip MenuItem with existing menu in VS2010
body: <p>I have added a few custom <code>MenuItem</code> objects to a <code>ContextMenuStrip</code> control.</p>
  
  <p>However, adding my objects has completely blown away the very useful menu items that already existed in the controls (<code>TreeView</code>, <code>TextBox</code>, and <code>DataGridView</code>).</p>
  
  <p>Has anyone been able to successfully merge these items?</p>