Json and Circular Reference Exception

Question

I have an object which has a circular reference to another object. Given the relationship between these objects this is the right design.

To Illustrate

Answer 1

What I have done is a bit radical, but I don't need the property, which makes the nasty circular-reference-causing error, so I have set it to null before serializing.

SessionTickets result = GetTicketsSession();
foreach(var r in result.Tickets)
{
    r.TicketTypes = null; //those two were creating the problem
    r.SelectedTicketType = null;
}
return Json(result);

If you really need your properties, you can create a viewmodel which does not hold circular references, but maybe keeps some Id of the important element, that you could use later for restoring the original value.