Since the previous question is already answered by Scott. I won't repeat the answer here.
> My ultimate goal is that when the user clicks the submit button, I get > only the records in myDatagrid that have changed. By the time the app > is done there may be hundreds of rows of records with up to 10 fields. What u can do is to addEventListener for the [mx.events.CollectionEvent.COLLECTION_CHANGE] event type. When u get a call back u can check the [kind] and [location] property of CollectionEvent to determine whether the collection has been modified in any way. The [kind] constant that you're looking for is [mx.events.CollectionEventKind.UPDATE]. This way you don't have to iterate your array collection. The draw back is u have to store what has been modified even if the user doesn't click submit. Regards, Edward Yakop