title: How to change the checked state of a ToolStripItem in Winforms?
body: <p>When I look it up, they list it as having a <code>.Checked</code> property. But both in Visual Studio and on <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.toolstripitem.aspx">msdn</a>, it doesn't list any kid of <code>Checked</code> property.</p>
  
  <pre><code>ContextMenuStrip menu = new ContextMenuStrip ( );
  var menuItem = menu.Items.Add ( "CheckedItem" );
  //menuItem.Checked?
  </code></pre>
  
  <p>Is there a way to do this?</p>