Can a default view state have an "enterState" event handler appended to it?

I have a pretty straight forward Flex 3 Component with three states (the default, grid, and list).

What i want is for a specific method to be fired upon entering each state. This is easy to establish for the defined states (grid & list) but i don't know how to set it up, or emulate this behavior for the default state, and returning to the default state.