title: how to hide a datagrid detail row
body: <p>I have a datagrid with the <code>RowDetialsVisibilityMode</code> set to <code>VisibleWhenSelected</code>, and the RowDetailsTemplate set accordingly.  When the user selects a row, the detail shows, which is exactly as described. However after reviewing the details, the user would like to hide the row detail again without showing the details of another row. How is this best accomplished.</p>
  
  <p><strong>Update:</strong> As mentioned in the comments, the likely the best option would be a button in the details row to hide the row, but then I wonder what would the binding look like?</p>