如何在Flex的DataGrid中改变行的颜色
1. 定义一个新的类并将这个类放在src下（默认package）：
package{ import flash.display.Sprite; import mx.collections.ArrayCollection; import mx.controls.DataGrid; public class RowColorDataGrid extends DataGrid { public var rowColorFunction:Function; override protected function drawRowBackground( s:Sprite, rowIndex:int, y:Number, height:Number, color:uint, dataIndex:int):void { if(rowColorFunction != null) { var item:Object; if(dataIndex < dataProvider.length) { item = dataProvider[dataIndex]; } if(item) { color = rowColorFunction(item, rowIndex, dataIndex, color); } } super.drawRowBackground( s, rowIndex, y, height, color, dataIndex); } }}<local:RowColorDataGrid left="col1:20" right="col2:20" top="row2:25" bottom="row2:25" id="filesDG" rowColorFunction="calcRowColor"/>
private function calcRowColor(item:Object, rowIndex:int, dataIndex:int, color:uint):uint { if(rowIndex==0) return 0xEE2233; else return color; }