How do you create a calculated field based on child objects? For example, if you have an Order object that exposes a Total property based on a child Item.Price value, how can Item.Price notify Order to update its Total property (Order.Total) ?
So you would have Order.Items.Price = 2.25; Then Order.Total would be updated to reflect the change made to the Item.Price property.
Really great job, Mike, thanks! I really enjoy how you dig into the framework so the average developer is educated and not blinded by the abstraction. I really enjoy watching all of your presentations and look forward to seeing more!