title: How do I hide the header in a WPF Expander?
body: <p>I have a business requirement that when the user clicks a series of checkboxes in a WPF application that it will show panels depending upon what checkboxes they select.  I would like to use the expander panel but I am not sure how to hide the header.  The user should not be allowed to see it unless they check the checkbox.  Does anyone know?</p>