How to update nested ListCollectionViews?

hi troops,

 

my application has core set of items (e.g. products), gets passed between various view layers. each layer wraps given input list in listcollectionview, , adds own sorting , filtering.

 

that way might have construct similar to

 

new listcollectionview(new listcollectionview(new arraycollection()))

 

but, of course, sorting/filtering added on each level.

 

now when call itemupdated() on root arraycollection, change not propagate hierarchy of lists.

 

it seems each wrapping, have call itemupdated(), such as:

 

ac.itemupdated(product);

ac.itemupdated(product);

 

to make top-most listcollectionview update. single call not trick.

 

debugging code gave me insight initial collectionevent.update event ac converted move event listcollectionview. second call makes lcv realize item wouldn't move anymore , not convert event, next lcv can item-moved update of localindex.

 

yes, yes, complicated. feedback welcome, of course

for single original set of data, if want multiple views (with

different filters , sorts), share list or source.  if you

share list, changes list propagated views.

 

original data:

var arr:array = ["foo", "bar", "baz"];

var ac:arraycollection = new arraycollection(arr);

var view1:listcollectionview = new listcollectionview();

view1.list = ac.list;

var view2:listcollectionview = new listcollectionview();

view2.list = ac.list;

More discussions in Flex (Read Only)

adobe