A question about adding record to DB

Question

I tried to add a record to the DB of MSSQL2000. Then I set up a project of FLASH BULDER4.The application of server is COLD FUSION, using COLDFUSION FLASH REMOTING. Then I pulled a FORM to workspace, binded the DB and called the create service. But when I tried to add the record, there is no answer.
<?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" xmlns:valueObjects="valueObjects.*" xmlns:productsservice="services.productsservice.*">
<fx:Script>
  <![CDATA[
   import mx.controls.Alert;
   protected function button_clickHandler(event:MouseEvent):void
    var products2:Products = new Products();
    products2.item_name = item_nameTextInput.text;
    products2.carpet_type = carpet_typeTextInput.text;
    createproductsResult.token = productsService.createproducts(products2);
  ]]>
</fx:Script>
<fx:Declarations>
  <valueObjects:Products id="products"/>
  <productsservice:ProductsService id="productsService" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/>
  <s:CallResponder id="createproductsResult"/>
</fx:Declarations>
<mx:Form x="128" y="138" defaultButton="{button}">
  <mx:FormItem label="Id">
   <s:TextInput id="idTextInput" text="{products.id}"/>
  </mx:FormItem>
  <mx:FormItem label="Item_name">
   <s:TextInput id="item_nameTextInput" text="{products.item_name}"/>
  </mx:FormItem>
  <mx:FormItem label="Carpet_type">
   <s:TextInput id="carpet_typeTextInput" text="{products.carpet_type}"/>
  </mx:FormItem>
  <s:Button label="Createproducts" id="button" click="button_clickHandler(event)"/>
  <mx:Form>
   <mx:FormItem label="Createproducts">
    <s:TextInput id="createproductsTextInput" text="{createproductsResult.lastResult as Number}"/>
   </mx:FormItem>
  </mx:Form>
</mx:Form>
</s:Application>

Answer 1

The source code for JDK1.4 is found in the src.zip file where you installed the JDK. Unzip the file and look at the code.
I would think the second approach is better. It ultimately uses:
JViewport.setView(ta);
which I belive is the correct way to add a component to a viewport. This way listeners can be added/removed correctly.
The JViewport.add(ta) is just using the Component add(..) method. Therefore, no special processing regarding listeners is done.