MVC Controllers

An MVC controller is an object that receives events and translates them into actions on the model and viewport. A controller determines the behavior of an MVC component. The controller has a strongly typed relationship with the model so that it can call methods exposed by the model’s interface and execute commands against the model. The controller can also call methods on the viewport. One of the attractive features of the MVC architecture is that different controllers can be used with the same viewport and model. The behavior of an MVC component can be modified by swapping one controller for another.