Have you tried modifying the array/array collection that the list component is
using for the dataProvider property?
So you would move and item up or down using a button on the UI and that
button's click handler would look similar to this:
That btnMoveUp_clickHandler might look like:
private function btnMoveUp_clickHandler:void
{
var index:Number = list.selectedIndices[0];
//temp array for reassembling your data for the list
var newArray:Array = new Array();
for (var i:Number=0; i < test2.length; i++)
{ {
//item to move down
if (i == index - 1)
{
//Push the item to move up first
newArray.push(listDataProviderArray[index]);
//Push the item to move down next
newArray.push(listDataProviderArray[index - 1]);
}
//item to move up
else if (i == index)
{
//Do nothing, wait for next pass to add items again
otherwise you risk duplicating data
}
else
{
newArray.push(listDataProviderArray [i]);
}
}
listDataProviderArray = newArray;
validateNow();
}
You will need to double check this code and make corrections and make sure the
listDataProviderArray is [Bindable] so any changes to it's structure are
reflected back to the list control.
Steve Lawdis
-----Original Message-----
From: Lucas Junqueira / Ciclope [mailto:[email protected]]
Sent: Wednesday, March 13, 2013 4:49 AM
To: [email protected]
Subject: Re: help with moving list elements up and down
Nope... nor validateNow or setting the item, instead of the index worked...
2013/3/13 Evyatar Ben Halevi-Arbib <[email protected]>
> I suggest using the selectedItem property instead of selectedIndex.
> I witnessed cases where changing the selectedIndex had no impact on
> the UI and using selectedItem did work properly.
>
> Good luck,
> Evyatar
>
> On Tue, Mar 12, 2013 at 11:29 PM, Alex Harui <[email protected]> wrote:
>
> > Try calling validateNow after changing selectedIndex.
> >
> >
> > On 3/12/13 2:19 PM, "Lucas Junqueira / Ciclope"
> > <[email protected]>
> > wrote:
> >
> > > Hi, I was trying to create an order list withe the spark list control.
> I
> > > would like to move itens up and down, but this seems to be a problem.
> > Here
> > > is the code I'm trying to use to move an item up. Can anyone tell
> > > me
> why
> > it
> > > isn't working? The item label is, indeed, changed, but the list
> selection
> > > not (the selected index does not change):
> > >
> > > if (this.sequenceList.selectedIndex > 0) {
> > > var list1:Object = new Object();
> > > var list2:Object = new Object();
> > > list1.label =
> > > String(this.sequenceListData.getItemAt(this.sequenceList.selectedI
> > > ndex
> -
> > > 1).label);
> > > list1.data =
> > > String(this.sequenceListData.getItemAt(this.sequenceList.selectedI
> > > ndex
> -
> > > 1).data);
> > > list2.label =
> > >
> >
> >
> String(this.sequenceListData.getItemAt(this.sequenceList.selectedIndex
> ).label)>
> > ;
> > > list2.data =
> > >
> >
> String(this.sequenceListData.getItemAt(this.sequenceList.selectedIndex
> ).data);
> > >
> > > this.sequenceListData.getItemAt(this.sequenceList.selectedIndex -
> > > 1).label = list2.label;
> > >
> > > this.sequenceListData.getItemAt(this.sequenceList.selectedIndex -
> > > 1).data = list2.data;
> > >
> > this.sequenceListData.getItemAt(this.sequenceList.selectedIndex).lab
> > el
> > > = list1.label;
> > >
> > this.sequenceListData.getItemAt(this.sequenceList.selectedIndex).dat
> > a =
> > > list1.data;
> > >
> > > // the following does not work
> > > this.sequenceList.selectedIndex =
> > > this.sequenceList.selectedIndex -
> > 1;
> > >
> > > // tryied with and without the refresh
> > > this.sequenceListData.refresh(); }
> > >
> > > Thank you all!
> >
> > --
> > Alex Harui
> > Flex SDK Team
> > Adobe Systems, Inc.
> > http://blogs.adobe.com/aharui
> >
> >
>
--
Lucas Junqueira
[email protected] / (31)2555-0635 / (31)9133-6635 Ateliê Ciclope de arte e
publicação digital
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