MultipleDataProviders.mxml

          

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    <!-- charts/MultipleDataProviders.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"
    height="600">
    <fx:Script> 
        import mx.collections.ArrayCollection; 
        [Bindable] 
        public var profit04:ArrayCollection = new ArrayCollection([ 
            {Month:"Jan", Profit:2000}, 
            {Month:"Feb", Profit:1000}, 
            {Month:"Mar", Profit:1500} 
        ]); 
        [Bindable] 
        public var profit05:ArrayCollection = new ArrayCollection([ 
            {Month:"Jan", Profit:2200}, 
            {Month:"Feb", Profit:1200}, 
            {Month:"Mar", Profit:1700} 
        ]); 
        [Bindable] 
        public var profit06:ArrayCollection = new ArrayCollection([ 
            {Month:"Jan", Profit:2400}, 
            {Month:"Feb", Profit:1400}, 
            {Month:"Mar", Profit:1900} 
        ]); 
      </fx:Script>
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <s:Panel title="Column Chart">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <mx:ColumnChart id="myChart" showDataTips="true">
            <mx:horizontalAxis>
                <mx:CategoryAxis dataProvider="{profit04}"
                    categoryField="Month" />
            </mx:horizontalAxis>
            <mx:series>
                <mx:ColumnSeries dataProvider="{profit04}" yField="Profit"
                    xField="Month" displayName="2004" />
                <mx:ColumnSeries dataProvider="{profit05}" yField="Profit"
                    xField="Month" displayName="2005" />
                <mx:ColumnSeries dataProvider="{profit06}" yField="Profit"
                    xField="Month" displayName="2006" />
            </mx:series>
        </mx:ColumnChart>
        <mx:Legend dataProvider="{myChart}" />
    </s:Panel>
</s:Application>

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1.	Script section and dataProvider section
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3.	Create a Legend control is to bind a chart to it by using the dataProvider property
4.	populating dataProvider by using the
5.	uses event handlers to add and remove container children by calling addItem()/removeItemAt() on dataProvider property
6.	Creating a TabBar control, use and tags to specify the text for each tab
7.	Change Service DataProvider
8.	dataProvider and DataGrid
9.	A custom function to convert new data items to the format required by the data provider

MultipleDataProviders.mxml : dataProvider « Data Model « Flex

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