title: Double list - WPF Toolkit DataGrid
body: <p>I have a datagrid from wpf Toolkit, with the itemsource binded to a <code>Observable&lt;Item&gt;</code>. In the <code>Item</code> Class, I have another <code>Observable&lt;bool&gt;</code> list containing the values to be displayed. </p>
  
  <p>I want to display these values in a custom template. If possible, I want to show other rows as well (which are normal Properties). </p>
  
  <p>How can I perform this? Thank you for your answers.</p>
  
  <p>Update (just to make clear): the second list should be displayed in normal columns, not as master/detail. Imagine the second list would contain 2 <code>bools</code>, and the Item class contains 1 extra property. In that case, 3 columns should be shown.</p>