Flex中如何通过设置GridLines对象的horizontalAlternateFill样式交错显示LineSeries图表背景颜色的例子

原文 http://blog.minidx.com/2008/11/27/1652.html

接下来的例子演示了Flex中如何通过设置GridLines对象的horizontalAlternateFill样式，交错显示LineSeries图表背景颜色。

让我们先来看一下Demo（

可以右键View Source或点击这里察看源代码

）：

下面是完整代码(或点击这里察看)：

Download: main.mxml

<?xmlversion="1.0"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="vertical"

verticalAlign="middle"

backgroundColor="white">

<mx:XMLListCollection id="dp">

<mx:source>

<mx:XMLList>

<quote date="8/27/2007"open="40.38"close="40.81"/>

<quote date="8/24/2007"open="40.5"close="40.41"/>

<quote date="8/23/2007"open="40.82"close="40.6"/>

<quote date="8/22/2007"open="40.4"close="40.77"/>

<quote date="8/21/2007"open="40.41"close="40.13"/>

<quote date="8/20/2007"open="40.55"close="40.74"/>

<quote date="8/17/2007"open="40.18"close="40.32"/>

<quote date="8/16/2007"open="39.83"close="39.96"/>

<quote date="8/15/2007"open="40.22"close="40.18"/>

<quote date="8/14/2007"open="41.01"close="40.41"/>

<quote date="8/13/2007"open="41"close="40.83"/>

<quote date="8/10/2007"open="41.3"close="41.06"/>

<quote date="8/9/2007"open="39.9"close="40.75"/>

<quote date="8/8/2007"open="39.61"close="40.23"/>

<quote date="8/7/2007"open="39.08"close="39.42"/>

<quote date="8/6/2007"open="38.71"close="39.38"/>

<quote date="8/3/2007"open="39.47"close="38.75"/>

<quote date="8/2/2007"open="39.4"close="39.52"/>

<quote date="8/1/2007"open="40.29"close="39.58"/>

</mx:XMLList>

</mx:source>

</mx:XMLListCollection>

<mx:LineChart id="lineChart"

showDataTips="true"

dataProvider="{dp}"

width="100%"

height="100%">

<mx:backgroundElements>

<mx:GridLines>

<mx:horizontalAlternateFill>

<mx:SolidColor color="haloSilver"alpha="0.25"/>

</mx:horizontalAlternateFill>

</mx:GridLines>

</mx:backgroundElements>

<!-- vertical axis -->

<mx:verticalAxis>

<mx:LinearAxis baseAtZero="false"title="Price"/>

</mx:verticalAxis>

<!-- horizontal axis -->

<mx:horizontalAxis>

<mx:CategoryAxis id="ca"categoryField="@date"title="Date"/>

</mx:horizontalAxis>

<!-- horizontal axis renderer -->

<mx:horizontalAxisRenderers>

<mx:AxisRenderer axis="{ca}"canDropLabels="true"/>

</mx:horizontalAxisRenderers>

<!-- series -->

<mx:series>

<mx:LineSeries yField="@open"form="curve"displayName="Open"/>

</mx:series>

</mx:LineChart>

</mx:Application>

代码：Peter deHaan 翻译/整理/编译：中文Flex例子