如何修复错误Flex [英] How to fix error Flex

问题描述

您好！我使用Flex教程中的示例代码：

Hello! I use example code from Flex tutorial:

<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the Spark DropDownList control -->
<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">

    <fx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import spark.events.IndexChangeEvent;

         [Bindable]
            public var myDP:ArrayCollection = new ArrayCollection(
                [ {product:"Flex", price:100},
                  {product:"Air", price:200},
                  {product:"Catalyst", price:300},
                  {product:"FlashBuilder", price:400} ]);

            private function updateSelection(e:IndexChangeEvent):void
            {
                currSel.text = "Current Product = " + myDDL.selectedItem.product;
                currPrc.text = "Price = $" + myDDL.selectedItem.price;
            }
        ]]>
    </fx:Script>

    <s:Panel width="75%" height="75%" title="My DropDownList Example"

        horizontalCenter="0" verticalCenter="0">

        <s:VGroup left="10" right="10" top="10" bottom="10">

            <!-- Text components used to display current selection and price -->
            <s:Label id="currSel" text="Current Product = -"/>
            <s:Label id="currPrc" text="Price = $ -"/>

            <!-- DropDownList will call the updateSelection function when the
            selectionChanged event is dispatched -->
            <s:DropDownList id="myDDL" prompt="Select One"

                width="200" dataProvider="{myDP}"

                labelField="product"

                change="updateSelection(event);"/>

        </s:VGroup>

    </s:Panel>

</s:Application>

这给我一个错误：

This get me one error:

Severity and Description    Path    Resource    Location    Creation Time   Id
Could not resolve <s:Application> to a component implementation.    LABAMENU/src    LABAMENU.mxml   line 4  1370013049718   77

如何解决？可能是我有任何版本的flex？我知道Flex只有3天，并且不会忽略这样的微妙之处

How to fix it? May be i have any version flex? I know Flex only 3 days and dont understanв such such subtleties

推荐答案

+ myDDL.selectedItem.price;
}
]]>
< / fx：脚本 >

< s：面板 width = 75％ 高度 = 75％ title = 我的DropDownList示例

horizo​​ntalCenter = 0 verticalCenter = 0 >

< s：VGroup left = 10 正确 = 10 top = 10 bottom = 10 >

<！ - 用于显示当前选择和价格的文本组件 - >
< s：标签 id = currSel text = 当前产品= - / >
< s：标签 id = currPrc text = Price =

" + myDDL.selectedItem.price; } ]]> </fx:Script> <s:Panel width="75%" height="75%" title="My DropDownList Example" horizontalCenter="0" verticalCenter="0"> <s:VGroup left="10" right="10" top="10" bottom="10"> <!-- Text components used to display current selection and price --> <s:Label id="currSel" text="Current Product = -"/> <s:Label id="currPrc" text="Price =

- / > ;

<！ - DropDownList将在调度
selectionChanged事件时调用updateSelection函数 - >
< s：DropDownList id = myDDL 提示 = 选择一个

width = 200 dataProvider = {myDP}

labelField = product

更改 = updateSelection（event）; / >

< / s：VGroup >

< / s：Panel >

< / s：应用程序 >

-"/> <!-- DropDownList will call the updateSelection function when the selectionChanged event is dispatched --> <s:DropDownList id="myDDL" prompt="Select One" width="200" dataProvider="{myDP}" labelField="product" change="updateSelection(event);"/> </s:VGroup> </s:Panel> </s:Application>

这给我一个错误：

This get me one error:

Severity and Description    Path    Resource    Location    Creation Time   Id
Could not resolve <s:Application> to a component implementation.    LABAMENU/src    LABAMENU.mxml   line 4  1370013049718   77

如何解决？可能是我有任何版本的flex？我知道Flex仅用了3天而且没有这么细微之处

How to fix it? May be i have any version flex? I know Flex only 3 days and dont understanв such such subtleties

您使用的是哪个版本的flex？使用最新版Flex 4或以上。

Hi,

Which version of flex you are using?use latest version Flex 4 or above.

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