flex 简单例子(含实例效果图 源码)

<?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>