RE: [flexcoders] Flex2B2 Problem with XML insertChildBefore

Sat, 22 Apr 2006 23:49:15 -0700

I haven't tried this but it may need to be
productData.category[0].insertChildBefore(x, y)

-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED] On
Behalf Of greenfishinwater
Sent: Thursday, April 20, 2006 12:00 PM
To: [email protected]
Subject: [flexcoders] Flex2B2 Problem with XML insertChildBefore

I am experimenting with using XML as the data provider for a tree. I
want to be able to inset new nodes at run time. I have successfully
used  appendChild and insertChildAfter, but cannot get
insertChildBefore to work. In my example app I think I maybe setting
up the position where to insert incorrectly. Does anybody else have
experience of using these insert methods.

Also I would like to know how to insert a new node underneath an
existing node, rather than at the same level.

This is my app which is coded for Flex 2 beta 2

Thank you

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*"
layout="absolute">
  <mx:Script>
  <![CDATA[
    import mx.collections.XMLListCollection;
    import flash.events.*;
    import mx.events.*;
    import mx.controls.*;

      [Bindable]
    public var productData:XML = <food>
                      <category name="Fish">
                        <product name="Salmon"/>
                      </category>
                      <category name="Vegetable">
                        <product name="Carrot"/>
                      </category>
                  </food>;

    public var extraData:XML = <category name="Fruit">
                    <product name="Orange"/>
                   </category>;

    public var newFish:XML = <product name="Chilean Sea Bass"/>;

    public function appendToEnd() : void
    {
        productData = productData.appendChild(extraData);
        myTree.dataProvider = productData;
    }
    public function insertAfterFish() : void
    {
      var x:Object = productData.category[0];
      var y:Object = extraData;

        productData = productData.insertChildAfter(x, y);
        myTree.dataProvider = productData;
    }

    public function insertBeforeSalmon() : void
    {
      var x:Object = productData.category[0].product[0];
      var y:Object = newFish;

        productData = productData.insertChildBefore(x, y);
        myTree.dataProvider = productData;
    }
   ]]>
  </mx:Script>

    <mx:Tree id="myTree" width="300" height="200" labelField="@name"
          showRoot="false" dataProvider="{productData}" />
    <mx:Button label="Append to End" click="appendToEnd()" y="210"/>
    <mx:Button label="Insert after Fish" click="insertAfterFish()"
y="235"/>
    <mx:Button label="Insert before Salmon"
click="insertBeforeSalmon()" y="260"/>

</mx:Application>





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