It sure makes me wiser, thanks! Now let me try to explain my issue a bit clearer. Maybe it's this simple:
I want to keep the selection in the datagrid in sync with the selection of the same data in another part of the application. But when I sort the data in the datagrid I lose the references, becauase of the mechanism you mention. Maybe I can just copy the reference to the new item list in the datagrid. Or if there's some property I can set that does it for me. It seems to me like the problem is quite general. /PEZ --- In [email protected], "Alex Harui" <[EMAIL PROTECTED]> wrote: > > The DP makes a new copy of the items and sorts them, leaving the old > items in their original untouched array or xmllist. > > > > I don't quite get your issue, but I hope that helps. > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of cobpez > Sent: Sunday, March 30, 2008 9:12 AM > To: [email protected] > Subject: [flexcoders] What happens with dataProvider when you sort a > List control? > > > > Hello, I just found both Flex and this group. So here a newbie problem: > > I have a DataGrid (AdvancedDataGrid even) that gets populated from an > XML source. Selecting an item in the list selects it in another place > of the application too (let's call it "Space") and also some of the > item's data is shown in a form. Additionally clicking the item in > Space selects it in the list and that form is populated the same way. > The way I link from Space to the list is through an "id" attribute of > the Space items. Something like so: > > list.selectedItem = _xml_source.items.item.(@id==space_item.id); > > It all works well until I sort the DataGrid. Then that selection > expression returns null. I've tried see why in the debugger, but I > can't see it. What am I missing here? >
