<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" verticalAlign="top" applicationComplete="init()">     <mx:Script>         <!--[CDATA[             import mx.events.ItemClickEvent;             import mx.collections.ArrayCollection;             import mx.controls.Alert;             [Bindable]             public    var dataColl:ArrayCollection=new ArrayCollection();             //ID编号             var k=1;             //联系人对象             var userobj:Object;             //性别默认状态             var sexobj:String="男";             //右键删除菜单             var menucont:ContextMenu;             //初始化行数             var p:int=0;             public function init():void{                 menucont=new ContextMenu();                 addMenuItems();             }             //添加右键菜单项             public function addMenuItems():void{                 var item:ContextMenuItem = new ContextMenuItem("删除");         menucont.customItems.push(item);         item.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, menuItemHandler);         menucont.hideBuiltInItems(); userdata.contextMenu = menucont;             }             //菜单右键事件处理             public function menuItemHandler(event:ContextMenuEvent):void{                 var CaptionString:String=event.target.caption;                 if(CaptionString=="删除"){              //确定鼠标所在行数                 var findex:Number = Math.floor(userdata.contentMouseY/userdata.rowHeight)-1 + userdata.verticalScrollPosition;              if (findex<0 || findex>=userdata.verticalScrollPosition+userdata.rowCount-1) //行号小于0时和大于datagrid行总数时的 错误处理              {                  Alert.show("请选择要删除的行","提示");              } else {                  p=findex;                  dataColl.removeItemAt(p);          Alert.show("删除成功","提示");              }                 }             }             public function checkuser(event:MouseEvent):void{                 var gname=uname.text;                 var gphone=uphone.text;                 if(gname!="" && gphone!=""){                     dataprovider();                 }else{                     Alert.show("请输入用户名或电话号码","提示");                 }             }             //单选按钮触发事件             public function changsex(event:ItemClickEvent):void{                 if(event.currentTarget.selectedValue=="f"){                     sexobj= "女";                 }else{                     sexobj= "男";                 }             }             //重置             public function resetvalue(event:MouseEvent):void{                 uname.text="";                 uphone.text="";                 male.selected=true;             }             //创建联系人信息             public function dataprovider():Object{                     userobj=new Object();                     userobj["uid"]=k;                     userobj["uname"]=uname.text;                     userobj["uphone"]=uphone.text;                     userobj["usex"]=sexobj;                     dataColl.addItem(userobj);                     k++;                     return userobj;             }         ]]-->     </mx:Script>     <mx:Form>         <mx:Text text="联系簿" fontWeight="bold" fontSize="14" textAlign="center" width="233" color="#1B78C6"/>         <mx:FormItem label="姓名" fontSize="12" fontWeight="bold" horizontalAlign="left">             <mx:TextInput id="uname"/>         </mx:FormItem>             <mx:RadioButtonGroup id="sexgroup" itemClick="changsex(event)"/>             <mx:FormItem label="性别" horizontalAlign="center" fontSize="12" fontWeight="bold">             <mx:HBox>             <mx:RadioButton id="male" label="男性" groupName="sexgroup" selected="true" value="m"/>             <mx:RadioButton id="female" label="女性" groupName="sexgroup" value="f"/>             </mx:HBox>         </mx:FormItem>         <mx:FormItem label="电话号码" fontWeight="bold" fontSize="12" horizontalAlign="center">         <mx:TextInput id="uphone"/>         </mx:FormItem>         <mx:HBox width="232" height="35" verticalAlign="middle" horizontalAlign="center">             <mx:Button id="go" label="添加" fontSize="12" fontWeight="normal" click="checkuser(event)" textAlign="center" height="30" width="60"/>             <mx:Button id="reset" label="重置" fontWeight="normal" fontSize="12" height="30" width="60" click="resetvalue(event)"/>         </mx:HBox>     </mx:Form>     <mx:DataGrid dataProvider="{dataColl}" width="400" id="userdata"         fontSize="12" borderStyle="inset" fontWeight="bold" textAlign="center" alternatingItemColors="[#F1B6B6, #F2EB37]" height="210" editable="true">         <mx:columns>             <mx:DataGridColumn headerText="ID" dataField="uid"/>             <mx:DataGridColumn headerText="联系人" dataField="uname"/>             <mx:DataGridColumn headerText="性别" dataField="usex"/>             <mx:DataGridColumn headerText="电话号码" dataField="uphone"/>         </mx:columns>     </mx:DataGrid> </mx:Application>