Flex中对表格中某列的值进行数字格式化并求百分比-蒲公英云

Flex中对表格中某列的值进行数字格式化并求百分比

1、问题背景

 一般的，需要对表格中某列的数值进行格式化，对该数值乘以100，并保留两位小数，添加“%”

2、实现实例

[plain] view plaincopy 在CODE上查看代码片派生到我的代码片

<?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%” fontSize=”12”
fontFamily=”微软雅黑”>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.events.FlexEvent;
[Bindable]
//表格数据绑定
private var gridArray:ArrayCollection = new ArrayCollection([
{week:”星期一”,apple:”3676”,rate:”0.7868”},
{week:”星期二”,apple:”4534”,rate:”0.65454”},
{week:”星期三”,apple:”6758”,rate:”0.876454”},
{week:”星期四”,apple:”9808”,rate:”0.34224”},
{week:”星期五”,apple:”6567”,rate:”0.9876523”},
{week:”星期六”,apple:”9000”,rate:”0.566777”},
{week:”星期日”,apple:”4533”,rate:”0.988787”}
]);
/**
* 对表格中的比率进行格式化
*/
private function formatDataGrid(item:Object,column:DataGridColumn):String
{
var tempData:Number = item.rate*100;
var data:String = dataFormatter.format(tempData);
return data+”%”;
}
]]>
<mx:VBox width=”100%” height=”100%” paddingBottom=”10” paddingLeft=”10” paddingRight=”20”
paddingTop=”10” horizontalAlign=”center”>

（1）将小数乘以100

   var tempData:Number = item.rate\*100;

（2）对数值格式化，保留两位小数

   var data:String = dataFormatter.format(tempData);

（3）添加百分号

   return data+"%";

3、实现结果

Center

Flex中对表格中某列的值进行数字格式化并求百分比