Arraycollection into XMLlistcollection

Hi all,
I am trying to create my xmllistcollection since days, and getting soo unsuccessful each time...
I have a flat simple arraycollection like :
id_order
client_name
orders_name
1
client_name 1
order_name 1
2
client_name 2
order_name 2
3
client_name 3
order_name 3
4
client_name 1
order_name 4
Objective: I want to display the above data in a tree, group by client_name.
Please can you help me to create that xmllistcollection ?
Thanks
ps: what i have done so far:
[Bindable]
private var myXMLlist:XML = <clients></clients>;
[Bindable]
private var XMListcol:XMLListCollection;
private function createXML():void
 XMListcol = new XMLListCollection;
 var clientNamePrev:String;
 for (var i:int = 0; i < allOrders_array.length; i++)
 var ordName:String = allOrders_array.getItemAt(i).orders_name;
 var idOrders:String = allOrders_array.getItemAt(i).id_orders;
 var clientName:String = allOrders_array.getItemAt(i).client_name;
 var clientNameTag:XML = <clientname>{clientName}</clientname>;
 //Alert.show("idOrders:"+ idOrders+ "order name:"+ ordName);
 var new0rderTag:XML = <ordername id={idOrders}>{ordName}</ordername>;
 if(clientNamePrev == clientName)
 Alert.show("clientNameTag: "+ clientNameTag);
 clientNameTag.appendChild(new0rderTag);
 else
 //Alert.show("ord Prev: "+clientNamePrev + " orderName: "+ clientName);
 myXMLlist = myXMLlist.appendChild(clientNameTag);
 clientNamePrev= clientName;
 XMListcol = new XMLListCollection(myXMLlist.children());
 Alert.show("listxml: "+ myXMLlist.descendants());

Hi
Do you know how could i access the attribute 'id' from the tag '<ordername id =xx>'?
please find below the solution to my difficulties:
private function createXML():void
 var myXMLlist:XML = <clients></clients>;
 var clientNamePrev:String = "";
 var clientNameTag:XML;
 //Alert.show("arraylength : " +allOrders_array.getItemAt(20).client_name );
 for (var i:int = 0; i < allOrders_array.length; i++)
 var ordName:String = allOrders_array.getItemAt(i).orders_name;
 var idOrders:String = allOrders_array.getItemAt(i).id_orders;
 var clientName:String = allOrders_array.getItemAt(i).client_name;
 var new0rderTag:XML = <ordername id={idOrders} label={ordName}/>;
 if (clientNamePrev == "")
 clientNameTag = <clientname label={clientName}></clientname>;
 clientNameTag.appendChild(new0rderTag);
 else if(clientNamePrev == clientName)
 clientNameTag.appendChild(new0rderTag);
 //Alert.show("clientNameTag: "+ clientNameTag);
 else if(clientNamePrev != clientName)
 //Alert.show("ord Prev: "+clientNamePrev + " orderName: "+ clientName);
 myXMLlist = myXMLlist.appendChild(clientNameTag);
 clientNameTag = <clientname label={clientName}></clientname>;
 clientNameTag.appendChild(new0rderTag);
 else
 Alert.show("Please contact Administrator @ [email protected]", "Alert");
 if (i == (allOrders_array.length - 1))
 myXMLlist = myXMLlist.appendChild(clientNameTag);
 clientNamePrev= clientName;
 XMListcol = new XMLListCollection(myXMLlist.children());
 //Alert.show("listxml:" + XMListcol);
Thank you

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public var sectors:ArrayCollection = new ArrayCollection([{sectorId:101,fromStation:"Calicut",toStation:"Muscat"},
{sectorId:102,fromStation:"Kochi",toStation:"Sharjah"},
{sectorId:103,fromStation:"Bangalore",toStation:"Dubai"},
{sectorId:104,fromStation:"Dubai",toStation:"Amman"},
{sectorId:105,fromStation:"Amman",toStation:"Frankfurt"}]);
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public var draggedSectors:ArrayCollection = new ArrayCollection();
public var mySectors:SectorsVO = new SectorsVO;
public var myString:String = "";
private function getValuesAsCSV():void{
for(var i:int = 0; i < draggedSectors.length; ++i){
mySectors = SectorsVO(draggedSectors.getItemAt(i));
Alert.show("Value is : "+mySectors.sectorId);
myString = String(mySectors.fromStation.stationName);
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]]>
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 dropEnabled="true" verticalScrollPolicy="on">
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Please help me on the ablve matter..! Thanks in advance..!

fromStation and toStation are already Strings, but you are attempting to cast an ArrayCollection entry to a SectorsVO object. The problem is that SectorsVO has a no-arg constructor and the entry that you are attemping to cast is not of type SectorsVO. You need to modify the constructor to accept an Object and manually assign values to the properties.
It sounds like you are trying to build a CSV string out of all of the values of one of the fields. What you can do is loop through the draggedSectors and pull out the desired property, placing it into a temporary Array. After the loop, simply use Array.join(",") to produce a CSV string.

Cannot read an ArrayCollection variable assigned by LCDS

Hi, I am new to flex and lcds. pls. help me to understand. All I am trying to do here is take the hibernate sample from lcds sample application and replace the grid control with a tree control. In order achieve this, I was trying to convert the ArrayCollection into an XMLListCollection object through an actionscript in a function called convertToXML. How ever, I'm having the difficulty in this conversion. When i tried to debug the action script, the arraycollection, which is suppose to be with full values, seems to empty. But, still it shows up the records in the grid. pls. help to understand, why, I can't manipulate the ArrayCollection? For your reference, Following is the modifed modified lines of the original lcds sample code. <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:local="*" layout="absolute" width="100%" height="100%" pageTitle="Hibernate" creationComplete="convertToXML()">  <mx:DataGrid id="list" width="100%" height="100%" dataProvider="{contacts}" doubleClick="openTab(list.selectedItem as Contact)" doubleClickEnabled="true"> <mx:columns> <mx:DataGridColumn dataField="firstName" headerText="First Name"/> </mx:columns> </mx:DataGrid> [Bindable] private var projects:XML = <list> <projects name="Projects" code="0"> </projects> </list>; [Bindable] private var projectData:XMLListCollection = new XMLListCollection(projects.projects); private function convertToXML():void { ds.fill(contacts, 'all', []); for each (var proj:Contact in contacts) { addProject(proj.lastName + ", " + proj.firstName); } } private function addProject(projName:String):void { var newNode:XML = <project/>; newNode.@name = projName; var proj:XMLList = projects.projects.(@name == "Projects"); if( proj.length() > 0 ) { proj[0].appendChild(newNode); } } private function treeLabel(item:Object):String { var node:XML = XML(item); if( node.localName() == "department" ) return node.@title; else return node.@name; }

If I understand correctly you must read a BLOB from a foregin database but have no privleges to create any supporting objects. This sounds painful.
Options to get to the BLOB include (all with problems to solve)
* through database link
* extract LOB to OS and re-load into database
**flat file
**datapump file
Some options - I hope someone provides better ideas, but until that happens ...
Can you create objects on the other side - where the BLOB comes from? If you can, consider writing a (pipelined?) function to read the BLOB, chop it up into smaller pieces, transfeer the pieces over a database link, and reassemble the pieces in the remote database using DBMS_LOB in PL/SQL. Not elegant.
You should be able to use the scheduler to create a job to use datapump to extract the BLOB and possibly transfer it too but how to access the OS file? You said you have no privileges to create objects, and that would include external tables. Could you find an existing directory object and use the folder already defined (risky; using a different application's infrastructure can be hard to maintain and will break when the underlying directly goes away)?
Edited by: riedelme on Jun 13, 2011 12:08 PM

From ArrayCollection to Array in DataBinding

Hi,
I am trying to use somebody else's visual component (have src code of that mxml),
which uses Array items as a DataSource.
In my program I use ArrayCollection to hold my data (from the data feed - changes in real time).
I need to pass some data from my ArrayCollection into that component inside the binding,
something like:
<view:Component1 items="{dataArrayCollection}"?? />
currently have in Component1.mxml:
public function set items(a:Array):void {...}
Since that component is pretty complicated, I would not want to break its logic,
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Array tempArr = new Array();
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Is there a more efficient way of doing that (I guess, "set dataProvider" will be called a lot, on each update)?
I don't think I can just straight convert ArrayCollection -> Array, need just a small subset of data.
Please advise.
TIA,
Oleg.

Alex,
A friend suggested me another solution, which I tried and it seems to work and be more straightforward:
main.xml:
[Bindable]
private var ac : ArrayCollection;
<component dataProvider="{ac}" />
Component.xml:
[Bindable]
public var dataProvider:ArrayCollection;
private function onCreationComplete():void {
 dataProvider.addEventListener(CollectionEvent.COLLECTION_CHANGE, onDataProviderUpdate);
public function onDataProviderUpdate(e:*=null):void {
 if (dataProvider == null) {
 return;
 var aca:Array = dataProvider.source;
 var dev1:Object = aca[0]; // process only 1 element of that AC
 var dev:Device = new Device();
 dev.cpu = dev1["cpu"];
 // pass to items array
 if (_items == null) { // if new // _items - component's data array
 _items = new Array();
 _items.push(dev);
 } else {
 _items.push(dev);
 updateData();
 updateView();
Do you like that solution ?
The only problem I see is that when the feed runs, the size of the browser memory grows fast,
so by element 60 it slows down, by 95 memory consumption grows to 1.4GB and browser crashes.
I do not think it is related to that data binding, but not positive.
Can it be array.push() ?
Any way to force garbage collection in Flex ?
Please advise,
Oleg.

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{ date:"2009-11-14", visitors:"659862", name:"Sitename1"},
{ date:"2009-11-08", visitors:"598754", name:"Sitename2"}, // On this day, Sitename2 got 598754 visitors
{ date:"2009-11-09", visitors:"255378", name:"Sitename2"},
{ date:"2009-11-10", visitors:"268554", name:"Sitename2"},
{ date:"2009-11-11", visitors:"282678", name:"Sitename2"},
{ date:"2009-11-12", visitors:"568754", name:"Sitename2"},
{ date:"2009-11-13", visitors:"695135", name:"Sitename2"},
{ date:"2009-11-14", visitors:"365874", name:"Sitename2"},
{ date:"2009-11-08", visitors:"552678", name:"Sitename3"}, // On this day, Sitename3 got 552678 visitors
{ date:"2009-11-09", visitors:"265875", name:"Sitename3"},
{ date:"2009-11-10", visitors:"452648", name:"Sitename3"},
{ date:"2009-11-11", visitors:"965875", name:"Sitename3"},
{ date:"2009-11-12", visitors:"695135", name:"Sitename3"},
{ date:"2009-11-14", visitors:"365898", name:"Sitename3"},
So I need to re-arrange (dynamically) [not sorting] the above ArrayCollection into:
{ date:"2009-11-08", Sitename1:252678, Sitename2:598754, Sitename3:552678},
{ date:"2009-11-09", Sitename1:655378, Sitename2:255378, Sitename3:265875},
{ date:"2009-11-10", Sitename1:452648, Sitename2:268554, Sitename3:452648},
This Data will be the dataProvider of an AreaChart, so the fastest way is generally the best way to go
Thanks all

var timeKeyed:Object = {}
for each (var datum:Object in arrayCollection) {
    if (!(datum.date in timeKeyed)) {
        timeKeyed[datum.date] = { date : datum.date };
        timeKeyed[datum.date][datum.name] = datum.visitors;
var newCollection:ArrayCollection = new ArrayCollection();
for each (var datum:Object in timeKeyed) {
    newCollection.addItem(datum);
You may need to sort newCollection when you're done. That's left as an exercise to the reader.

Multiple ArrayCollection as DataProvider

Hi,
I've multiple source of XML which are saved as multiple
ArrayCollections in Flex. I've a single datagrid, which shows some
of the each ArrayCollection's elements in it. How could I
merge/throw those multiple ArrayCollection as DataProvider in the
datagrid?
Any help..?
ASB

You will need to concatenate the ArrayCollections into one,
as there is no way to specify multiple dataProviders for a single
control. This might be easier to do within XML (before wrapping it
in an ArrayCollection), depending on what your data looks
like.

Qualification Information updated in PUI not reflected in Self Service

Hi there,
I noticed that when I update my qualification information via sefl service, after HR approval, this information is reflected in the Qualification forms in the PUI.
However, if I update my qualification via PUI, this information is not reflected in my self service page.
Im currently lost as to tracking why is this happening. Im not even able to locate the tables these information are written into.
Any clue would be great!
Thanks & cheers,
HK

You also might want to try myDataProvider.refresh(), where myDataProvider is the data provider for the DataGrid. Make sure you are using a collection like ArrayCollection or XMLListCollection and you are using the [Bindable] metadata tag.
If this post answers your question or helps, please mark it as such. Thanks!
http://www.chikaradev.com
Adobe Flex Development and Support Services

Trying to scan photos from my photo album to a folder on my desktop. Have been trying to figure out for over an hour. Seems very complicated and cumbersome, Can you help?

Trying to scan photos from my photo album to a folder on my desktop. Have been trying to figure out for hours. Seems very complicated and cumbersome. Can anyone help? It's got to be much quicker (fewer key strokes) and simpler than what I've been able to discover.

Open the file, parse it, populate an ArrayCollection or XMLListCollection, and make the collection the DataGrid dataProvider:
http://livedocs.adobe.com/flex/3/html/help.html?content=Filesystem_08.html
http://livedocs.adobe.com/flex/3/html/help.html?content=12_Using_Regular_Expressions_01.ht ml
http://livedocs.adobe.com/flex/3/html/help.html?content=dpcontrols_6.html
http://livedocs.adobe.com/flex/3/langref/mx/collections/ArrayCollection.html
http://livedocs.adobe.com/flex/3/langref/mx/collections/XMLListCollection.html
If this post answered your question or helped, please mark it as such.

Arraycollection into XMLlistcollection

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