forwarding...
Dimitrios Gianninas
Optimal Payments Inc.
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of majid.tahir
Sent: Thu 5/31/2007 7:20 PM
To: [EMAIL PROTECTED]
Subject: Re: Dynamic LineSeries based upon Array Collection?
I am struggling with same issue. I can dynamically create the series
in AS but it seems if I am changing the dataprovider then things dont
work.
--- In flexcoders@yahoogroups.com, "tedgies" <[EMAIL PROTECTED]> wrote:
>
> Has anyone had any success in creating a chart with a series that
> you can add to at runtime? (Like Yahoo finance charts 2.0). I
> haven't yet seen an example where the LinSeries is based upon a
> changing (growing) set of external xml data files. Below i paste a
> snippet where i try to for loop through an Array Collection and
> create a separate httpservice call for each dataset (each baseball
> player). The httpservice URL is created dynamically based upon the
> arraycollection. I don't get any errors, but my chart will not
> paint my data. I think my problem is in:
>
> newSeries.dataProvider = myService.lastResult.item;
>
> thanks,
> Ted
>
> <mx:Script><![CDATA[
> import mx.rpc.http.mxml.HTTPService;
> import mx.charts.chartClasses.StackedSeries;
> import mx.charts.chartClasses.Series;
> import mx.events.IndexChangedEvent;
> import mx.events.ListEvent;
> import mx.utils.StringUtil;
> import mx.controls.Alert;
> import mx.charts.events.ChartItemEvent;
> import mx.collections.ArrayCollection;
> import mx.utils.ArrayUtil;
> import mx.charts.series.LineSeries;
> import mx.charts.DateTimeAxis;
> import mx.charts.CategoryAxis;
>
> [Bindable]
> public var ItemsInChart:ArrayCollection = new ArrayCollection
> ([
> {playerName: "Babe_Ruth", playerID: "123456"},
> {playerName: "Hank_Aaron", playerID: "123457"}]);
>
> public function initApp():void {
> //Loop through the ArrayCollection ItemsinChart and create
> a new httpservice and line for each.
> var i:int;
> for (i = 0; i < ItemsInChart.length; i++) {
> var myService:HTTPService = new
> HTTPService();
> var playerStr:String =
> ItemsInChart.getItemAt(i).playerName;
> myService.url = "assets/" + playerStr
> + ".xml";
> myService.send();
>
> // Create the new series and set its properties.
> var series:Array = myChart.series;
> var newSeries:LineSeries = new LineSeries;
> newSeries.dataProvider = myService.lastResult.item;
> newSeries.xField = "Year";
> newSeries.yField = "Home_Runs";
> newSeries.displayName = "Home Runs for Baseball
> Greats";
> newSeries.name = "Home Runs";
> // Add the new series to the current Array of series.
> series.push(newSeries);
> myChart.series = series;
> }
> }
> ]]>
> </mx:Script>
>
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