flex中AdvancedDataGrid之间的拖拽

 

<?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" minWidth="955" minHeight="600"><fx:Script><![CDATA[import mx.controls.Alert;import mx.events.DragEvent;private var adgTargetDp:ArrayCollection = new ArrayCollection();<!--处理单击删除按钮事件 -->protected function btnDel_clickHandler(event:MouseEvent):void{//获取用户选择行的书籍编号var selIndex:int = this.adgTarget.selectedIndex;if(selIndex<0){Alert.show("没有选择行，不能删除","bookArrayCollection组件使用方法示例演示");return;}this.bookArrayCollection.removeItemAt(selIndex);}protected function adgFrom_dragStartHandler(event:DragEvent):void{//将目标对象dropEnabled 置为true，表示允许拖放this.adgTarget.dropEnabled = true;}protected function adgTarget_dragDropHandler(event:DragEvent):void{//获取用户拖放的数据行var dgRow:Object = event.dragSource.dataForFormat("items")[0];                            //如果拖放的目标数据在目标对象中                if(this.adgTargetDp.contains(dgRow)){Alert.show("目标对象已经存在此数据行！","拖放功能示例演示");this.adgTarget.dropEnabled=false;}else{this.adgTargetDp.addItem(dgRow);    }                }]]></fx:Script><fx:Declarations><!-- 定义ArrayCollection实例，表示书籍列表--><s:ArrayCollection id="bookArrayCollection"><fx:Object bookId="B001" bookType="程序" bookName="JAVA"/><fx:Object bookId="B002" bookType="程序" bookName="JSP"/><fx:Object bookId="B003" bookType="程序" bookName="FLEX"/><fx:Object bookId="B004" bookType="平面" bookName="PHOTOSHOP"/><fx:Object bookId="B005" bookType="平面" bookName="COREDRAW"/><fx:Object bookId="B006" bookType="办公" bookName="WORD"/><fx:Object bookId="B007" bookType="办公" bookName="EXCEL"/><fx:Object bookId="B008" bookType="办公" bookName="OUTLOOK"/></s:ArrayCollection></fx:Declarations><s:Panel  horizontalCenter="0" verticalCenter="0" width="636" height="411" title="拖拽示例演示"><mx:AdvancedDataGrid  id="adgFrom" designViewDataType="tree" dataProvider="{bookArrayCollection}"   left="0" right="0" top="0" bottom="189" dragEnabled="true"  dragStart="adgFrom_dragStartHandler(event)"><mx:columns><mx:AdvancedDataGridColumn headerText="编号" dataField="bookId"/><mx:AdvancedDataGridColumn headerText="类型" dataField="bookType"/><mx:AdvancedDataGridColumn headerText="名称" dataField="bookName"/></mx:columns></mx:AdvancedDataGrid><mx:AdvancedDataGrid  id="adgTarget" designViewDataType="tree"  dropEnabled="true"                                dragDrop="adgTarget_dragDropHandler(event)"  left="0" right="0" top="223" height="125"><mx:columns><mx:AdvancedDataGridColumn headerText="编号" dataField="bookId"/><mx:AdvancedDataGridColumn headerText="类型" dataField="bookType"/><mx:AdvancedDataGridColumn headerText="名称" dataField="bookName"/></mx:columns></mx:AdvancedDataGrid><s:Rect left="0" bottom="0" right="0" height="30"><s:fill><s:SolidColor color="#E2EDF7"/></s:fill></s:Rect><s:Button x="170" y="352" label="删除" click="btnDel_clickHandler(event)"/></s:Panel></s:Application>