动态Flex表单复制

Question

我正在设计一个数据录入应用程序，允许多个条目到其主题。例如，一个人可能已经接受了来自多个机构的教育。每个教育项目是一个表单，应用程序用户可以点击一个按钮添加另一个条目，这是一个空白但相同的形式。

我想它涉及状态和自定义窗体组件，但不知道如何将所有东西都放在一起。有人可以阐明如何做到这一点？一些示例代码将不胜感激。

在此先感谢，

Answer 1

如果有要求，是否需要flex版本？或者只是使用最新的Flex 4代码？一般来说，在Flex中这是一项非常简单的任务，您可以在MXML中创建AnEntry.mxml中的类定义，它仅仅是一个TextInput（或者标签和TextInput或任何您需要的每个条目）。在Flex 3中，您在按钮的点击处理程序中调用this.addChild（new AnEntry（））或在Flex 4中调用this.addElement（new AnEntry（））;.要提交，你需要做一个从0开始的循环，并转到this.numChildren，并将每个TextInput作为参数传递给HTTPService。下面

两个文件对编译的Flex 3.4

[AnEntry.mxml]

<?xml version="1.0" encoding="utf-8"?> 
<mx:Box xmlns:mx="http://www.adobe.com/2006/mxml"> 
    <mx:Label text="Link:"/> 
    <mx:TextInput id="theTextInput"/> 
</mx:Box> 

[MainApplication.mxml]

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
       layout="vertical" 
       minWidth="955" 
       minHeight="600"> 

    <mx:Script> 
     <![CDATA[ 
      import mx.rpc.http.HTTPService; 
      protected function button1_clickHandler(event:MouseEvent):void 
      { 
       var params:Object = {}; 
       var paramCount:Number=0; 
       // TODO Auto-generated method stub 
       for(var i:Number = 0; i<numChildren; i++) 
       { 
        var currentChild:DisplayObject = getChildAt(i); 
        if(currentChild is AnEntry) 
        { 
         params[paramCount++] = (currentChild as AnEntry).theTextInput.text; 
        } 
       } 
       var httpService:HTTPService = new HTTPService(); 
       httpService.method = "POST" 
       httpService.url = "http://www.shaunhusain.com/somewhere.php"; 
       httpService.send(params); 
      } 
     ]]> 
    </mx:Script> 


    <mx:Button label="Add Entry" click="this.addChild(new AnEntry())"/> 
    <mx:Button label="Submit Info" click="button1_clickHandler(event)"/> 
</mx:Application> 

请让我知道，如果这能让你在去正确的方向，如果你是Flex的一名初学者，在一周的视频中搜索Flex，他们是一个很好的教程，让你开始使用Flex开发。

修订针对Flex 4：

[MainApplication.mxml]

<?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:VerticalLayout/> 
    </s:layout> 
    <fx:Declarations> 
     <!-- Place non-visual elements (e.g., services, value objects) here --> 
    </fx:Declarations> 
    <fx:Script> 
     <![CDATA[ 
     import mx.rpc.http.HTTPService; 
     protected function button1_clickHandler(event:MouseEvent):void 
     { 
     var params:Object = {}; 
     var paramCount:Number=0; 
     // TODO Auto-generated method stub 
     for(var i:Number = 0; i<numChildren; i++) 
     { 
     var currentChild:DisplayObject = getChildAt(i); 
     if(currentChild is AnEntry) 
     { 
     params[paramCount++] = (currentChild as AnEntry).theTextInput.text; 
     } 
     } 
     var httpService:HTTPService = new HTTPService(); 
     httpService.method = "POST" 
     httpService.url = "http://www.shaunhusain.com/somewhere.php"; 
     httpService.send(params); 
     } 
     ]]> 
    </fx:Script> 


    <mx:Button label="Add Entry" click="this.addElement(new AnEntry())"/> 
    <mx:Button label="Submit Info" click="button1_clickHandler(event)"/> 

</s:Application> 

[AnEntry.mxml]

<?xml version="1.0" encoding="utf-8"?> 
<mx:Box 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:Declarations> 
     <!-- Place non-visual elements (e.g., services, value objects) here --> 
    </fx:Declarations> 
    <mx:Label text="Link:"/> 
    <mx:TextInput id="theTextInput"/> 
</mx:Box>