Set the value of a ColumnChart control's dataTipMode property to multiple:

           
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<!-- charts/DataTipsMultiple.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        import mx.collections.ArrayCollection;
        [Bindable]
        public var expenses:ArrayCollection = new ArrayCollection([
            {Month:"Jan", Profit:2000, Expenses:1500},
            {Month:"Feb", Profit:1000, Expenses:200},
            {Month:"Mar", Profit:1500, Expenses:500}
            ]);
      </mx:Script>
    <mx:Panel title="Bar Chart">
        <mx:BarChart id="myChart" dataProvider="{expenses}" showDataTips="true"
            mouseSensitivity="50" dataTipMode="multiple">
            <mx:verticalAxis>
                <mx:CategoryAxis dataProvider="{expenses}"
                    categoryField="Month" />
            </mx:verticalAxis>
            <mx:series>
                <mx:BarSeries yField="Month" xField="Profit" />
                <mx:BarSeries yField="Month" xField="Expenses" />
            </mx:series>
        </mx:BarChart>
        <mx:Legend dataProvider="{myChart}" />
    </mx:Panel>
</mx:Application>

Related examples in the same category

1.	Using ArrayCollection Of Verbose MXML Objects for ColumnChart
2.	creates data labels for each of the columns in the ColumnChart control:
3.	Use these methods to cycle through the data points in a ColumnChart control.
4.	Add a CartesianDataCanvas as an annotation element to the ColumnChart control.
5.	Use the addDataChild() method to add children to the data canvas. It adds labels to each of the columns that you select in the ColumnChart control.
6.	Define a data provider on the chart control
7.	Compare yField in data provider when it fills each chart item
8.	Data Tip Function for chart

Set the value of a ColumnChart control's dataTipMode property to multiple: : Column Chart Data « Chart « Flex

Related examples in the same category