hi all, i have 2 classes (Master-Details), the "Order" and "OrderDetails" class, i am trying to add an Order details to the "Order.OrderDetails" EntitySet using reflection as the following:

  //1. create Instance of OrderDetails
     Xtensive.Storage.Entity typeInstance = (Xtensive.Storage.Entity)Activator.CreateInstance(Type.GetType(Assembly.CreateQualifiedName(AssemblyName, "OrderDetails")));

    //2. for each Property in OrderDetails set its value to a field from ASPXGridView

    foreach (PropertyInfo property in (Convert.ChangeType(typeInstance, Type.GetType(Assembly.CreateQualifiedName(AssemblyName, "OrderDetails")))).GetType().GetProperties().Where(tp => !tp.Name.Equals("Id")))
                    {
                        if (!e.NewValues.Contains(property.Name) || e.NewValues[property.Name] == null)
                            continue;

                        property.SetValue(typeInstance, Convert.ChangeType(e.NewValues[property.Name], property.PropertyType), null);
                    }

if (ObjectConnector.Object != null) // if an Instance of Order class exists add the OrderDetails created instance to it

                {
                    //the Order Object
                    var EntityObject = Convert.ChangeType(ObjectConnector.Object, Type.GetType(Assembly.CreateQualifiedName(AssemblyName, "Order")));
                    //get the OrderDetails EntitySet
                    var EntityProperty = EntityObject.GetType().GetProperty("OrderDetails").GetValue(EntityObject, null);
                    //the Add method on the EntitySet
                    MethodInfo addEntitySetMethod = typeof(Xtensive.Storage.EntitySet<>).MakeGenericType(Type.GetType(Assembly.CreateQualifiedName(AssemblyName, "OrderDetails"))).GetMethod("Add");
                    //invoke the EntitySet's Add method passing the OrderDetails instance
                    addEntitySetMethod.Invoke(EntityProperty, new object[] { Convert.ChangeType(typeInstance, Type.GetType(Assembly.CreateQualifiedName(AssemblyName, "OrderDetails"))) });

                }

OrderDetails instance created and assigned correctly to the Order instance but the session doesn't see the added OrderDetails (Session's transactions events don't fired), so it doesn't persist it (i am using Xtensive.Storage.Web.SessionManager to manage sessions), does i do somthing not supported or incorrect, or even should i do somthing else to save the OrderDetails instance.

thanks