flex DataGrid checkbox 全选 单选 反选 XMLListCollection ArrayCollection 转换
每个功能需求不一样，网上有很多例子
<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"layout="absolute"><mx:Script><![CDATA[import mx.collections.ArrayCollection;import mx.controls.Alert;import mx.controls.CheckBox;import mx.events.FlexEvent;//XMLListCollection.source 转成xmllist xmlListCollection.source=xmlList; //XMLListCollection.toArray() 转成ArrayCollection provider=new ArrayCollection(xmlListCollection.toArray()); grid.dataProvider=provider; [Bindable]private var dataSource:ArrayCollection=new ArrayCollection([{id: 0, name: "test1", age: 12, checked:false}, {id: 1, name: "test1", age: 12, checked:false}, {id: 2, name: "test2", age: 40, checked:false}, {id: 3, name: "test3", age: 20, checked:false}, {id: 4, name: "test1", age: 12, checked:false}, {id: 5, name: "test4", age: 18, checked:false}, {id: 6, name: "test5", age: 60, checked:false}]);//得到选中项的值public function test():void{var allRows:int = dataSource.length;for (var i:int = 0; i < allRows; i++){if(dataSource[i].checked==true){Alert.show(i.toString());Alert.show(dataSource.getItemAt(i).name);}else{Alert.show("至少选中一个");}}//数据源没有值，不给出提示Alert.show("数据源没有值");}public function selectAllCheckboxes(obj:Object):void{var allRows:int = dataSource.length;for (var i:int = 0; i < allRows; i++){if(adGrid.selectedIndex==i){dataSource[i].checked = true;}else{dataSource[i].checked = false;}}dataSource.refresh();}public function selects():void{var allRow:int = dataSource.length;for (var i:int = 0; i < allRow; i++){if (selectAll.selected == true){trace ("Checked is true");dataSource[i].checked = true;}else{trace ("Checked is false");dataSource[i].checked = false;}}dataSource.refresh();}]]></mx:Script><mx:VBox><mx:HBox ><mx:DataGrid id="adGrid" width="300" height="253" fontSize="14" dataProvider="{dataSource}" x="262.5" y="203"><mx:columns><mx:DataGridColumn headerText="序号" dataField="id"/><mx:DataGridColumn headerText="名称" dataField="name"/><mx:DataGridColumn headerText="是否选择" dataField="checked" textAlign="center"><mx:itemRenderer><mx:Component><mx:HBox verticalAlign="middle" horizontalAlign="center"><mx:CheckBox id="checkbox" selected="{data.checked}" click="outerDocument.selectAllCheckboxes(this)"/></mx:HBox></mx:Component></mx:itemRenderer></mx:DataGridColumn></mx:columns></mx:DataGrid></mx:HBox><mx:HBox><mx:Button label="哪些被选中了？" click="test()"/><mx:CheckBox id = "selectAll" label="Select/Deselect All" click="selects();" left="10" top="175"/></mx:HBox></mx:VBox></mx:Application>