支持多行同时拖拽，重复数据不重得添加，添加了图表右键菜单.
<? xml version="1.0" encoding="utf-8" ?> < mx:Application xmlns:mx ="http://www.adobe.com/2006/mxml" layout ="absolute" creationComplete ="init()" > < mx:Script > <![CDATA[ import mx.controls.Alert; import mx.controls.DataGrid; import mx.managers.DragManager; import mx.core.UIComponent; import mx.collections.ArrayCollection; import mx.events.DragEvent; //DataGrid的数据源 [Bindable] private var medalsAC:ArrayCollection = new ArrayCollection( [ { Country: "美国", Gold: 35, Silver:39, Bronze: 29 }, { Country: "中国", Gold: 99, Silver:17, Bronze: 14 }, { Country: "日本", Gold: 32, Silver:27, Bronze: 38 }, { Country: "韩国", Gold: 27, Silver:27, Bronze: 2 }, { Country: "新加坡", Gold: 55, Silver:27, Bronze: 63 }, { Country: "朝鲜", Gold: 11, Silver:21, Bronze: 16 }, { Country: "马来西亚", Gold: 7, Silver:14, Bronze: 77 }, { Country: "澳洲", Gold: 0, Silver:12, Bronze: 11 } ]); //ColumnChart的数据源, 默认为空 [Bindable] private var chartData:ArrayCollection = new ArrayCollection(); [Bindable] private var menu:ContextMenu = new ContextMenu(); //让columnChart监听拖拽事件 private function init():void{ column.addEventListener(DragEvent.DRAG_ENTER,dragEnterHandle); column.addEventListener(DragEvent.DRAG_DROP,dragdropHandle); //初始化右键菜单 initMenu(); } //初始化chart右键菜单 private function initMenu():void { var clear:ContextMenuItem = new ContextMenuItem("清空图表"); menu.customItems.push(clear); clear.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT,clearAction); } //处理鼠标右键事件 private function clearAction(event:ContextMenuEvent):void { this.chartData.removeAll(); } //因为只有DataGrid推拽，所以直接允许，如果界面上有多个控件监听拖拽事件，需要判断后允许正确的数据进入 private function dragEnterHandle(e:DragEvent):void{ DragManager.acceptDragDrop(e.currentTarget as UIComponent) } //拖拽放开后处理 private function dragdropHandle(e:DragEvent):void{ //往column chart的dataprovider中添加拖拽数据。 //如果只需要特定的数据进入column chart，可以先做数据筛选。 var datas: Array = (e.dragInitiator as DataGrid).selectedItems; for(var i:int = 0; i < datas.length; i ++) { //不包含已经存在的数据再添加 if(!chartData.contains(datas[i])) { chartData.addItem(datas[i]); } } } ]]> </ mx:Script > < mx:DataGrid dragEnabled ="true" dataProvider ="{medalsAC}" x ="192" y ="52" allowMultipleSelection ="true" > < mx:columns > < mx:DataGridColumn dataField ="Country" headerText ="国家" /> < mx:DataGridColumn dataField ="Gold" headerText ="金牌" /> < mx:DataGridColumn dataField ="Silver" headerText ="银牌" /> < mx:DataGridColumn dataField ="Bronze" headerText ="铜牌" /> </ mx:columns > </ mx:DataGrid > <!-- 定义颜色 --> < mx:SolidColor id ="sc1" color ="yellow" alpha =".8" /> < mx:SolidColor id ="sc2" color ="0xCCCCCC" alpha =".6" /> < mx:SolidColor id ="sc3" color ="0xFFCC66" alpha =".6" /> <!-- 定义颜色 --> < mx:Stroke id ="s1" color ="yellow" weight ="2" /> < mx:Stroke id ="s2" color ="0xCCCCCC" weight ="2" /> < mx:Stroke id ="s3" color ="0xFFCC66" weight ="2" /> <!-- Column chart设置成能解析Country: "Russia", Gold: 27, Silver:27, Bronze: 38这样的数据项 --> < mx:ColumnChart id ="column" contextMenu ="{menu}" height ="202" width ="402" paddingLeft ="5" paddingRight ="5" showDataTips ="true" dataProvider ="{chartData}" x ="192" y ="215" > <!-- 设置水平轴 --> < mx:horizontalAxis > <!-- 水平轴拖动数据到chart后的文字显示 --> < mx:CategoryAxis categoryField ="Country" /> </ mx:horizontalAxis > <!-- 设置柱子 --> <!-- fill填充颜色,stroke边框颜色 --> < mx:series > < mx:ColumnSeries xField ="Country" yField ="Gold" displayName ="金牌" fill ="{sc1}" stroke ="{s1}" /> < mx:ColumnSeries xField ="Country" yField ="Silver" displayName ="银牌" fill ="{sc2}" stroke ="{s2}" /> < mx:ColumnSeries xField ="Country" yField ="Bronze" displayName ="铜牌" fill ="{sc3}" stroke ="{s3}" /> </ mx:series > </ mx:ColumnChart > </ mx:Application >源码下载
々上善若水々 2009-04-22 10:46 发表评论