Add or remove a data point from a series in ActionScript.

             

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    <!-- charts/AddDataItem.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns="*" height="600" width="700">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script> 
        import mx.collections.ArrayCollection; 
        [Bindable] 
        public var dpac:ArrayCollection = new ArrayCollection([ 
            {A:2000},{A:3000},{A:4000},{A:4000},{A:3000},{A:2000},{A:6000} 
        ]); 
        public function addDataItem():void { 
            var o:Object = {"A":2000}; 
            dpac.addItem(o); 
        } 
        private function removeItem():void { 
            var i:int = dpac.length; 
            if (i > 0) { 
                dpac.removeItemAt(i - 1); 
            } 
        } 
      </fx:Script>
    <s:Panel title="Column Chart">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <mx:ColumnChart id="myChart" showDataTips="true"
            height="400" width="600" dataProvider="{dpac}">
            <mx:series>
                <mx:ColumnSeries yField="A" displayName="Series 1" />
            </mx:series>
        </mx:ColumnChart>
        <mx:Legend dataProvider="{myChart}" />
    </s:Panel>
    <s:HGroup>
        <s:Button label="Add Data Item" click="addDataItem();" />
        <s:Button label="Remove Data Item" click="removeItem();" />
    </s:HGroup>
</s:Application>

Related examples in the same category

1.	ColumnChart with ColumnSeries
2.	Use the fill property to set the color for each ColumnSeries object in a ColumnChart control
3.	Define a custom SolidColor object and a custom SolidColorStroke object, and applies them to the ColumnSeries object in the ColumnChart control.
4.	The following example mixes a LineSeries and a ColumnSeries
5.	The following example defines the colors for two series in the ColumnChart control:
6.	Adding Series to ColumnChart
7.	defines the colors for two series in the ColumnChart control
8.	Create a ColumnChart control with two series
9.	Data Update In Real Time Series
10.	uses two series to allow a visual comparison of two stocks that trade in different ranges
11.	Cast the HitData object to a Series class
12.	Set elementOffset property of SeriesInterpolate to 0.
13.	Increments and decrements the series's selectedIndex property to select each item
14.	Use a similar technique to add data series to your charts rather than replacing the existing ones
15.	yValue of the ColumnSeriesItem represents the percentage a series takes up in a 100% chart
16.	Use chart items in more than one series
17.	Zoom in data series from the upper-right corner of the chart.
18.	Change fields of a series to change chart data at run time
19.	The final result is a chart with multiple axes, but whose series share some of the same properties defined by common axis renderers.

Add or remove a data point from a series in ActionScript. : Column Chart ColumnSeries « Chart « Flex

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