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

1. <?xmlversion="1.0"?>
2. <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
3. layout="vertical"
4. verticalAlign="middle"
5. backgroundColor="white">
6. <mx:XMLListCollection id="dp">
7. <mx:source>
8. <mx:XMLList>
9. <quote date="8/27/2007"open="40.38"close="40.81"/>
10. <quote date="8/24/2007"open="40.5"close="40.41"/>
11. <quote date="8/23/2007"open="40.82"close="40.6"/>
12. <quote date="8/22/2007"open="40.4"close="40.77"/>
13. <quote date="8/21/2007"open="40.41"close="40.13"/>
14. <quote date="8/20/2007"open="40.55"close="40.74"/>
15. <quote date="8/17/2007"open="40.18"close="40.32"/>
16. <quote date="8/16/2007"open="39.83"close="39.96"/>
17. <quote date="8/15/2007"open="40.22"close="40.18"/>
18. <quote date="8/14/2007"open="41.01"close="40.41"/>
19. <quote date="8/13/2007"open="41"close="40.83"/>
20. <quote date="8/10/2007"open="41.3"close="41.06"/>
21. <quote date="8/9/2007"open="39.9"close="40.75"/>
22. <quote date="8/8/2007"open="39.61"close="40.23"/>
23. <quote date="8/7/2007"open="39.08"close="39.42"/>
24. <quote date="8/6/2007"open="38.71"close="39.38"/>
25. <quote date="8/3/2007"open="39.47"close="38.75"/>
26. <quote date="8/2/2007"open="39.4"close="39.52"/>
27. <quote date="8/1/2007"open="40.29"close="39.58"/>
28. </mx:XMLList>
29. </mx:source>
30. </mx:XMLListCollection>
31. <mx:LineChart id="lineChart"
32. showDataTips="true"
33. dataProvider="{dp}"
34. width="100%"
35. height="100%">
36. <mx:backgroundElements>
37. <mx:GridLines>
38. <mx:horizontalAlternateFill>
39. <mx:SolidColor color="haloSilver"alpha="0.25"/>
40. </mx:horizontalAlternateFill>
41. </mx:GridLines>
42. </mx:backgroundElements>
43. <!-- vertical axis -->
44. <mx:verticalAxis>
45. <mx:LinearAxis baseAtZero="false"title="Price"/>
46. </mx:verticalAxis>
47. <!-- horizontal axis -->
48. <mx:horizontalAxis>
49. <mx:CategoryAxis id="ca"categoryField="@date"title="Date"/>
50. </mx:horizontalAxis>
51. <!-- horizontal axis renderer -->
52. <mx:horizontalAxisRenderers>
53. <mx:AxisRenderer axis="{ca}"canDropLabels="true"/>
54. </mx:horizontalAxisRenderers>
55. <!-- series -->
56. <mx:series>
57. <mx:LineSeries yField="@open"form="curve"displayName="Open"/>
58. </mx:series>
59. </mx:LineChart>
60. </mx:Application>

代码：Peter deHaan 翻译/整理/编译：中文Flex例子