Flex Chart 動態 series

一般的圖表設計，會在 Tag mx:series 內新增多個 series ，然後每個對應不同的欄位 (yField or xField)，
因為來自不同欄位，所以可以這樣作，但如果值是來自相同欄位的話，而另一個欄位則儲存分類的類別值，如

Sales Man	Date	Amount
Sales A	2010/01/01	100
Sales B	2010/01/01	200

不同的 Sales Man就是代表一條線，那要怎麼作呢，這邊有範例可以參考，使用XML方式，而程式碼的部份資料來源是使用 ArrayCollection，應該就可以達成其功能了。

Dynamic Create Series By XML Data Source


coding

try {
var wholist:Array = new Array();
var property:String ;

//partXRData is an arraycollection
for(var i:int =0; i property = partXRData.getItemAt(i).USER_NAME as String;
if (wholist[property] == null){
wholist[property] = new ArrayCollection();

}

(wholist[property] as ArrayCollection).addItem(partXRData.getItemAt(i));

}

var currentSeries:Array = new Array();


var count1:int = 0;
var localSeries:LineSeries = null;
for each (var ac1:ArrayCollection in wholist) {

// Create the new series and set its properties.
localSeries = new LineSeries();
localSeries.dataProvider = ac1;
localSeries.yField = "AVERAGE1";
localSeries.xField = "VALUE_SN";


// Set values that show up in dataTips and Legend.
localSeries.displayName = ac1.getItemAt(0).USER_NAME;

// Back up the current series on the chart.

// Add the new series to the current Array of series.
currentSeries.push(localSeries);


}
// Add the new Array of series to the chart.
avgChart1.series = currentSeries;

}catch(error:Error) {

}