Adding or removing from a sorted or filtered view is problematic whether you use IList or IViewCursor.
Let's say I have numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 I filter for only multiples of 3: 3, 6, 9, 12 If I then call addItemAt(99, 1), where should it go? Somewhere between 3 and 6, but where? Before 4? 5? 6? Depending on your scenario, you may want to manipulate an unfiltered, unsorted list that shares the same source as the sorted/filtered collection. ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Anita Karst Sent: Thursday, December 13, 2007 3:12 PM To: [email protected] Subject: [flexcoders] Flex newbie has ICollectionView confusion... Hello Flexcoders, I apologize if this is a question that has already been beat to death - but I can't seem to find anything explicit about this... In the Flex documentation under the topic "Using IList interface methods and properties", there is a clearly marked note that says... "If you use the ICollectionView interface to sort or filter a collection, do not use the IList interface to manipulate the data, as the results are indeterminate." So, to make sure I understand, if you have an array collection that has been sorted and/or filtered, you can not then subsequently use the easy IListlist methods (i.e. addItemAt, getItemAt, setItemAt, etc.) successfully against this collection. As I understand, to alter an item in this collection, you need to use the less-obvious IViewCursor methods of remove-coupled-with-insert to alter an item in the collection. Am I on the right track here? Or, is there some other best-practice? Thanks for your time, Anita
