Hi Vaibhav,
Sorry no use ,still not working .
Regards
Kiran
On Wed, Nov 4, 2009 at 12:38 PM, Vaibhav Seth <seth.vaibhav...@gmail.com>wrote:
> To avoid such kind of issues, better use Cairngorm.
> I doubt the problem is Binding. You have to bind data with the dataprovider
> of your component. So that, whenever your data will get populated it will be
> reflected in the component. Try using:
> [Bindable]private var _data:XMLList;
>
>
>
>
>
> On Wed, Nov 4, 2009 at 11:59 AM, Kiran Kumar Vasireddy <
> kiranv...@gmail.com> wrote:
>
>> Thanks Vaibhav and Andrea for your suggestions.
>>
>> Andrea : You suggestion looks working , But got in one more problem .
>> Could you please help me ?
>>
>> If I call SingletonXML.getInstance().data; It is returning Null because
>> the of getResult() is returning the data later . Since the calls are
>> asynchronous get Data() is getting called first and then getResult().
>>
>> I checked the event data and data is there in the event .
>>
>> I came into this problem because of "<XML source = "is crashing my IE7,
>> Otherwise I could have done it using XML tag instead HTTPService ( for local
>> data I am using HTTPService ) . Please see the code below.
>>
>>
>>
>> package Components
>> {
>> import mx.controls.Alert;
>> import mx.rpc.events.ResultEvent;
>> import mx.rpc.http.HTTPService;
>>
>>
>> public class SingletonXML
>> {
>> private static var _instance: SingletonXML;
>> private var _data:XMLList;
>>
>> public function SingletonXML() {
>>
>> if (_instance != null)
>> trace("Constructor shouldn't be called
>> directly... now I'll have to kill you")
>> _instance = this;
>> this.initData();
>> }
>>
>> private function initData():void {
>> var service:HTTPService =new HTTPService();
>> service.url="Components/StudentData.xml";
>> service.resultFormat="e4x";
>> service.addEventListener("result", getResult);
>> service.send();
>>
>> }
>> private function onDataLoaded():void {
>>
>> //Store data
>> //this._data = [loaded data];
>>
>> }
>>
>> private function getResult(event:ResultEvent):void{
>> Alert.show("this is in get result");
>>
>> _data=XMLList(event.result.Country);
>>
>> }
>>
>> public static function getInstance():SingletonXML{
>> if (! _instance)
>> _instance = new SingletonXML();
>>
>> return _instance;
>> }
>>
>> public function get data():XMLList {
>> Alert.show("this is in get data");
>> return this._data;
>>
>>
>> }
>> }
>> }
>>
>> On Tue, Nov 3, 2009 at 4:38 PM, Andrea Giorgetta <
>> andreagiorge...@gmail.com> wrote:
>>
>>> Hi Kiran.
>>> I think you should create a "ModelLocator" singleton class, that gets and
>>> store the xml information. It would be something like this:
>>>
>>> public class MyModelLocator
>>> {
>>> private static var _instance: MyModelLocator;
>>> private var _data:XMLList;
>>>
>>> public function MyModelLocator() {
>>> if (_instance != null)
>>> trace("Constructor shouldn't be called directly... now
>>> I'll have to kill you")
>>> _instance = this;
>>> this.initData();
>>> }
>>>
>>> private function initData():void {
>>> //Load data....
>>> }
>>> private function onDataLoaded() {
>>> //Store data
>>> this._data = [loaded data];
>>> }
>>>
>>> public static function getInstance():MyModelLocator{
>>> if (! _instance)
>>> _instance = new MyModelLocator();
>>> return _instance;
>>> }
>>>
>>> public function get data():XMLList {
>>> return this._data;
>>> }
>>> }
>>>
>>> In order to get data in each combobox, you would set
>>> dataprovider="{MyModelLocator.getInstance.data}" (if that XMLList already
>>> has the correct structure to be directly used as a dataprovider in the
>>> combobox... otherwise now is the time to change it ;) )
>>> This way:
>>> - There's only one instance of MyModelLocator at anytime, anywhere.
>>> - initData is called only once, so the data is retrieved only once.
>>> - By storing the data within the singleton class, it's available to the
>>> whole application by just importing the class.
>>>
>>>
>>> Hope it solves your issue.
>>> Best regards
>>> Andrea.
>>>
>>>
>>>
>>>
>>> On Tue, Nov 3, 2009 at 5:59 PM, Kiran Kumar Vasireddy <
>>> kiranv...@gmail.com> wrote:
>>>
>>>> Hi ,
>>>>
>>>> I am calling httpservice.send() method and getting the data and
>>>> populating it in XMLList . I want this step to be done only once and want
>>>> to
>>>> reuse the data what ever I got .
>>>> My scenario is like this
>>>>
>>>> 1)Creating Custom combobox component
>>>> 2) Calling send() in the custom component and populating the combobox
>>>>
>>>> I want to create around 5 instances of the above component . But what is
>>>> happening is the send() is getting called again and again . Is there any
>>>> way
>>>> to restrict this and get the data only once and use it for my 5 instances .
>>>> The problem here is If I use http send() method when I load the application
>>>> , This works perfect . But we want that to be called only from component
>>>> and
>>>> want to use the same component again and again.
>>>>
>>>> Thanks for your help
>>>> Kiran
>>>>
>>>>
>>
>>
>>
>
>
> --
> Thanks,
> Vaibhav Seth.
>
>
> >
>
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