title: How do I assign shortcut keys to buttons on the bindingNavigator?
body: <p>Is there a way to assign shortcut keys to the standard navigation ToolStrip Items in a BindingNavigator?</p>
  
  <p>The items that get added using the .AddStandardItems method are of type ToolStripItem which doesn't have a ShortcutKeys property.</p>
  
  <p>I tried to cast to ToolStripMenuItem , but it fails.</p>
  
  <pre><code> public void ConfigureMyNavigator()
      {
                 // Adds ToolStripItems which don't support shortcut keys           
                  m_navigator.AddStandardItems();
  
                  // Adds a ToolStripMenuItem which can support a shortcut key
                  var button = new ToolStripMenuItem
                  {
                      Size = new Size(0, 0),
                      Text = "Save",
                      ShortcutKeys = (Keys)Shortcut.CtrlS,
                      ToolTipText = "Press Ctrl+S to save"
                  };
                  button.Click += tsmi_Click;
  
                  m_navigator.Items.Add(button);
  
                  //   This fails with invalid cast exception
                  ((ToolStripMenuItem)m_navigator.Items[1]).ShortcutKeys = (Keys)Shortcut.AltLeftArrow;
  
  
      }
  </code></pre>
  
  <p>I guess I could replace the toolstripitems with toolstripmenuitems one by one, but feel this is rather awkward.</p>