属性“dataProvider”有多个初始值设定项。（注意:“dataProvider”是“mx.charts.BarChart”的默认属性）。

1、错误描写叙述

属性“dataProvider”有多个初始值设定项。（注意:“dataProvider”是“mx.charts.BarChart”的默认属性）。

2、错误原因

<?

xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:mx="library://ns.adobe.com/flex/mx"
			   width="100%" height="100%"
			   creationComplete="initHandler(event)">
	<s:layout>
		<s:BasicLayout/>
	</s:layout>
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.events.FlexEvent;

			[Bindable]
			private var chartArray:ArrayCollection = new ArrayCollection([
				{week:"星期一",snake:"5459",cow:"7845"},
				{week:"星期二",snake:"8956",cow:"7845"},
				{week:"星期三",snake:"3562",cow:"7845"},
				{week:"星期四",snake:"7856",cow:"7845"},
				{week:"星期五",snake:"1245",cow:"7845"},
				{week:"星期六",snake:"9656",cow:"7845"},
				{week:"星期日",snake:"6784",cow:"7845"}
			]);

			protected function initHandler(event:FlexEvent):void
			{

			}

		]]>
	</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（比如服务、值对象）放在此处 -->
	</fx:Declarations>

	<mx:VBox width="100%" height="100%" horizontalAlign="center" paddingBottom="10" paddingLeft="10" paddingRight="20"
			 paddingTop="10">
		<mx:BarChart id="barchart" width="100%" height="90%" showDataTips="true" dataProvider="{chartArray}">
			<mx:verticalAxis>
				<mx:CategoryAxis categoryField="week" displayName="星期"/>
			</mx:verticalAxis>

			<mx:series>
				<mx:BarSeries displayName="蛇数量" xField="snake" yField="week"/>
			</mx:series>

			<fx:Array>

			</fx:Array>
		</mx:BarChart>
		<mx:Legend dataProvider="{barchart}"/>
	</mx:VBox>

</s:Application>

3、解决的方法

<?

xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx"
               width="100%" height="100%"
               creationComplete="initHandler(event)">
    <s:layout>
        <s:BasicLayout/>
    </s:layout>
    <fx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import mx.events.FlexEvent;  

            [Bindable]
            private var chartArray:ArrayCollection = new ArrayCollection([
                {week:"星期一",snake:"5459",cow:"7845"},
                {week:"星期二",snake:"8956",cow:"7845"},
                {week:"星期三",snake:"3562",cow:"7845"},
                {week:"星期四",snake:"7856",cow:"7845"},
                {week:"星期五",snake:"1245",cow:"7845"},
                {week:"星期六",snake:"9656",cow:"7845"},
                {week:"星期日",snake:"6784",cow:"7845"}
            ]);  

            protected function initHandler(event:FlexEvent):void
            {
                cate.ticksBetweenLabels = false;
            }  

        ]]>
    </fx:Script>
    <fx:Declarations>
        <!-- 将非可视元素（比如服务、值对象）放在此处 -->
    </fx:Declarations>  

    <mx:VBox width="100%" height="100%" horizontalAlign="center" paddingBottom="10" paddingLeft="10" paddingRight="20"
             paddingTop="10">
        <mx:BarChart id="barchart" width="100%" height="90%" showDataTips="true" dataProvider="{chartArray}">
            <mx:verticalAxis>
                <mx:CategoryAxis id="cate" categoryField="week" displayName="星期" />
            </mx:verticalAxis>  

            <mx:series>
                <mx:BarSeries displayName="蛇数量" xField="snake" yField="week"/>
            </mx:series>  

            <mx:secondVerticalAxis>
                <mx:CategoryAxis categoryField="week" displayName="星期"/>
            </mx:secondVerticalAxis>  

            <mx:secondSeries>
                <mx:LineSeries displayName="牛" xField="cow" yField="week"/>
            </mx:secondSeries>  

        </mx:BarChart>
        <mx:Legend dataProvider="{barchart}"/>
    </mx:VBox>  

</s:Application>