Yes, if selectedIDs is a big array, it could take a while to do run the loop.
You could try building up a hash table of ids
Var hashIDs:Object = new Object;
For (var i:int = 0; I < N; i++)
hashIDs[selectedIds[i].toString()) = 1;
Then query once:
var nodes:XMLList = xml.descendants().(hashIDs[@id] == 1)
Then copy all the nodes into the final array.. That is more looping, but fewer
XML queries and XML queries is usually way slower. Your mileage may vary.
-Alex
On 8/5/11 10:09 PM, "steveroger_flex" <steveroger_f...@yahoo.com> wrote:
Thank you Alex.
Its really great help.
I have do one change.
I used "var node:XML = xml.descendants().(@id == id)[0];" in place of "var
node:XML = xml..node(@id == id)[0];"
multiple selection is working perfectly.
But will this change affect to my application performance?
Steve.
--- In flexcoders@yahoogroups.com, Alex Harui <aharui@...> wrote:
>
> SelectedItems must be an array.
>
> If you have:
>
> Var xml:XML = <node name="Node 1" id="1">
> <node name="Node 1.1" id="2" />
> <node name="Node 1.2" id="3">
> <node name="Node 1.2.1" id="4" />
> <node name="Node 1.2.2" id="5" />
> </node>
> </node>
> Var selectedIds:Array = [2, 4, 5];
>
> Then you need something like:
>
> Var selItems:Array = new Array();
> For (var i:int = 0; I < n; i+++
> {
! > var id:String = selectedIds[i].toString();
> var node:XML = xml..node(@id == id)[0];
> selItems.push(node);
> }
>
> Then assign selItems to the selectedItems.
>
>
> On 8/5/11 1:12 AM, "steveroger_flex" steveroger_flex@... wrote:
>
>
>
>
>
>
> Thanks alex for reply..
> but actually I do not getting how it implemented.
>
> Can you please provide me any similar kind of example?
> Is it possible using XMLList?
>
> Steve
>
> --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> ,
> Alex Harui aharui@ wrote:
> >
> > You will have to make a new array of the nodes you want selected.
> >
> >
> > On 8/4/11 9:45 PM, "steveroger_flex" steveroger_flex@ wrote:
> >
> >
> >
> >
> >
> >
> > I am hav! ing list of nodes in array.
> > My problem is how sho! uld I us e seletedItems with list of node id array.?
> >
> > Data provider of tree component.
> >
> > <node name="Node 1" id="1">
> > <node name="Node 1.1" id="2" />
> > <node name="Node 1.2" id="3">
> > <node name="Node 1.2.1" id="4" />
> > <node name="Node 1.2.2" id="5" />
> > </node>
> > </node>
> >
> > Node id Array=(2,4,5).
> > I wanna select Node 1.1, Node 1.2.1 & Node 1.2.2 by clicking on button.
> >
> > tree.selectedItems = array;
> > is not working.
> >
> > --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com>
> > <mailto:flexcoders%40yahoogroups.com> , Alex Harui <aharui@> wrote:
> > >
> > > Use selectedItems
> > >
> > >
> > > On 8/4/11 5:08 AM, "steveroger_flex" <stever! oger_flex@> wrote:
> > >
> > >
> > >
> > >
> > >
> > >
> > > Hello Friends,
> > >
> > > I am facing a problem and can't getting any idea to solve this.
> > > Problem is, I wanna select one or more tree nodes using actionscript.
> > > I have set allowMultipleSelection="true" property of tree component.
> > >
> > > I succeed in selecting one node. But can't in multiple.
> > > I had used tree.selectedItem for single node.
> > >
> > > any idea to solve this?
> > >
> > > Thanks,
> > >
> > > Steve.
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
> > > Alex Harui
> > > Flex SDK Team
> > > Adobe System, Inc.
> > > ht! tp://blogs.adobe.com/aharui
> > >
> >
! > > ;
> >
> >
> >
> >
> > --
> > Alex Harui
> > Flex SDK Team
> > Adobe System, Inc.
> > http://blogs.adobe.com/aharui
> >
>
>
>
>
>
>
> --
> Alex Harui
> Flex SDK Team
> Adobe System, Inc.
> http://blogs.adobe.com/aharui
>
--
Alex Harui
Flex SDK Team
Adobe System, Inc.
http://blogs.adobe.com/aharui
