title: ToolStripMenuItem: Add arrow without submenu
body: <p>How can I add a menu item that has an arrow to the right as if there would be a submenu but does not show a submenu?</p>
  
  <p>Background: For a managed C# application I want to add a submenu which is created in an unmanaged DLL (using TrackPopupMenu()).</p>
  
  <p>In my experiments, I can only show the arrow when there are items attached using "DropDownItems.Add".</p>
  
  <p>I tried to use</p>
  
  <pre><code>ToolStripMenuItem menu = new ToolStripMenuItem();
  m_menu.Text = "Item that should have arrow w/o submenu";
  m_menu.Click += this.OnMenuDoSomething;
  m_menu.DropDownItems.Add("");
  </code></pre>
  
  <p>This still adds a submenu. I then tried these combinations:</p>
  
  <pre><code>m_menu.DropDownItems[0].Enabled = false;
  m_menu.DropDownItems[0].Available = false;
  m_menu.DropDownItems[0].Visible = false;
  </code></pre>
  
  <p>but either the submenu including the arrow disappears or nothing at all.</p>