I am trying to keep track of changes to an ArrayCollection. I have so far got all of the CollectionEventKind working except for UPDATE. It actually does add that a change was made for UPDATE, however, it doesn't actually save what the change was that was made.
e.g. CollectionChange fires, and I store it in an ArrayCollection. However, when I debug what was actually stored, I get a CollectionEvent, with an "items" array of 1 PropertyChangeEvent, which has a source object with the new values and shows the correct property that was changed, however, both the newValue and oldValue properties of the PropertyChangeEvent are both null. I'm trying to figure out how to get at the data before it is changed. I capture the CollectionChange event, but at that point, the data has already changed (as is evidenced by the PropertyChangeEvent showing the new values and none of the old values). Does anyone know what I can override to capture the changes before they are actually made to the ArrayCollection itself. This way I could even use my own createUpdateEvent to store the values. Thanks. Gareth
