[flexcoders] how to use a list's change event to refresh an array that is bound to it.

[stinasius]

how can i use a list's change event to refresh an array that is bound
to the list. for example if the list is populated by an array
collection  an displays images, how can i use the list's change event
to refresh an array that is bound to it and acts as a data provider
for another control? an example will be great. thanks