Flex个人知识库(3)
1、 DataGrid中的行数据交换位置
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:window="com.diaztorres.window.*" xmlns:log="com.log.*"> <mx:Script> <![CDATA[ import mx.collections.IList; import mx.collections.ArrayCollection import mx.controls.Alert; public function moveUp(event : MouseEvent) : void { var i : int = peopleList.selectedIndex; if (i >= 1&&peopleList.selectedItem) { IList(peopleList.dataProvider).addItemAt(peopleList.selectedItem,i-1); //Alert.show(peopleList.selectedIndex.toString()); IList(peopleList.dataProvider).removeItemAt(i+1); peopleList.selectedIndex = i; //Alert.show(i.toString()); } } public function moveDown(event : MouseEvent) : void { var i : int = peopleList.selectedIndex; if (i < (ArrayCollection(peopleList.dataProvider).length - 1) && peopleList.selectedItem) { IList(peopleList.dataProvider).addItemAt(peopleList.selectedItem,i + 2); IList(peopleList.dataProvider).removeItemAt(i); peopleList.selectedIndex = i; } } ]]> </mx:Script> <mx:Array id="arrDP"> <mx:Object c="1" c1="One" /> <mx:Object c="2" c1="One" /> <mx:Object c="3" c1="One" /></mx:Array> <mx:VBox horizontalAlign="center" x="618" y="176" height="264"> <mx:DataGrid id="peopleList" dataProvider="{arrDP}" x="198" y="66" width="302"> </mx:DataGrid> <mx:ControlBar width="298" horizontalAlign="right" height="26"> <mx:Button label="上移" click="moveUp(event)"/> <mx:Button label="下移" click="moveDown(event)"/> </mx:ControlBar> </mx:VBox> </mx:Application><?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" ><s:layout><s:BasicLayout/></s:layout><fx:Script><![CDATA[import flashx.textLayout.factory.TruncationOptions;import mx.collections.ArrayCollection;import mx.collections.Sort;import mx.collections.SortField;[Bindable]private var ac:ArrayCollection = new ArrayCollection([{ID:0,userName:"AAA"},{ID:1,userName:"CCC"},{ID:2,userName:"BBB"}]);public function init():void{//ac.addItem(//[{ID:0,userName:"AAA"},//{ID:1,userName:"CCC"},//{ID:2,userName:"BBB"}]////);//ac = (//[{ID:0,userName:"AAA"},//{ID:1,userName:"CCC"},//{ID:2,userName:"BBB"}]//);}protected function button1_clickHandler(event:MouseEvent):void{var sort:Sort = new Sort();//定义sort对象//选择排序的字段(默认是按升序排序的)sort.fields = [new SortField("userName")];//把Sort对象赋给acac.sort = sort;//如果按照降序排序，需要修改一下//sort.fields = [new SortField("userName",true,true)];//如果先降序（ID）后升序（userName），就这样写，以此类推//sort.fields = [new SortField("userID",true,true),new SortField("userName")];ac.refresh();}protected function button2_clickHandler(event:MouseEvent):void{var sort:Sort = new Sort();//定义sort对象//选择排序的字段(默认是按升序排序的)sort.fields = [new SortField("userName",true,true)];//把Sort对象赋给acac.sort = sort;ac.refresh();}]]></fx:Script><fx:Declarations><!-- 将非可视元素（例如服务、值对象）放在此处 --></fx:Declarations><s:Button label="升序排序" click="button1_clickHandler(event)" fontSize="20" x="10" y="61"/><s:Button label="降序排序" click="button2_clickHandler(event)" fontSize="20" x="10" y="190"/><s:List x="288" y="99" dataProvider="{ac}" labelField="userName" ></s:List></s:Application><?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:local="*" width="90%" height="90%" viewSourceURL="srcview/index.html"><s:Group width="100" height="100" horizontalCenter="0" y="10"><!--{widthSlider.value}--><local:TiledImage source="assets/appPlatform.png" width="100%" height="100%" /><s:Label text="Tiled Background" fontSize="16" horizontalCenter="0" verticalCenter="0" fontWeight="bold" /></s:Group><!--<s:HSlider id="widthSlider" value="200" minimum="150" maximum="300" horizontalCenter="0" y="125" />--></s:Application><?xml version="1.0" encoding="utf-8"?><s:Group xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"><fx:Script><![CDATA[import mx.controls.SWFLoader;import flash.display.BitmapData;import flash.display.Bitmap;public function set source(value:Object):void {loader.source = value;}private function updateSource():void {// use a SWFLoader to download the bitmap data then push that into the BitmapImagebitmapImage.source = loader.content;}]]></fx:Script><mx:SWFLoader id="loader" complete="updateSource()" width="0" height="0" /><s:BitmapImage id="bitmapImage" width="100%" height="100%" fillMode="repeat" /></s:Group><?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="12" xmlns:local="*" width="400" height="300"><mx:Script><![CDATA[[Bindable]private var _record:XML =<list><user name="小明" result="60"> </user><user name="小红" result="59"> </user><user name="小白" result="75"> </user><user name="小黑" result="38"> </user><user name="小青" result="80"> </user><user name="小文" result="100"> </user><user name="小鬼" result="99"> </user><user name="小东" result="40"> </user></list>]]></mx:Script><local:MyDataGrid dataProvider="{_record.user}" right="5" left="5" top="5" bottom="5"><local:columns><mx:DataGridColumn headerText="姓名" dataField="@name"/><mx:DataGridColumn headerText="成绩" dataField="@result"/></local:columns></local:MyDataGrid></mx:Application> <?xml version="1.0" encoding="utf-8"?><mx:DataGrid xmlns:mx="http://www.adobe.com/2006/mxml"><mx:Script><![CDATA[override protected function drawRowBackground(s:Sprite, rowIndex:int, y:Number, height:Number, color:uint, dataIndex:int):void{var list:XMLList = new XMLList(dataProvider)if(dataIndex < list.length() && list[dataIndex].@result <60)color = 0xFF6600super.drawRowBackground(s,rowIndex,y,height,color,dataIndex);}]]></mx:Script></mx:DataGrid>import flash.display.Sprite;import flashx.textLayout.events.ModelChange;import mx.collections.ArrayCollection;import mx.controls.DataGrid;public class DatacenterDataGridRowColor extends DataGrid{public function DatacenterDataGridRowColor(){//this.setStyle("backgroundColor", 0xFF0000);//this.setStyle("backgroundAlpha", 0.27);}override protected function drawRowBackground(s:Sprite, rowIndex:int, y:Number, height:Number, color:uint, dataIndex:int):void{if(dataProvider!=null && dataIndex<dataProvider.length){var item:Object = dataProvider.getItemAt(rowIndex);if( item.status == "禁用") color = 0xffeabc;}super.drawRowBackground(s, rowIndex, y, height, color, rowIndex);}}