如何在web api中绑定多个类

$.ajax({

    type: "POST",
    data: "{myEvents: " + JSON.stringify(myEvents) + ", myRecurrences: " + JSON.stringify(myRecurrences) + "}",
    url: "/signupadmin/api/SignupAdminAPI/SaveEvent",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function (obj)
     {
          alert("success");
     },
     error: function (obj)
     {
          alert(obj.error());
     }


    });


  [HttpPost]
    public bool SaveEvent(EvancedEventData myEvents,RecurrenceData myRecurrences)
    {
        return true;
    }
$.ajax({

    type: "POST",
    data: "{myEvent