Bug in drop-in ItemRenderer?

Question

Hello,
In all the examples I have seen online most of the Drop-In
ItemRenderers use an ArrayCollection when a CheckBox is used as the
DataProvider. I tried using an XMLList collection instead and I
don't get any of the CheckBoxes in the ItemRenderer to be checked
when the value is true, by default they all appear as unchecked.
I've tested the values displayed when I take out the ItemRenderer
and they show true or false.
I've tried to see if it made a difference that the values
were either text nodes or attr nodes and it didn't seem to care. So
is this a problem with the Drop-in ItemRenderer? Is this expected
behavior? Do I need to create a LabelFunction to cast the XML value
as a boolean? (I tried and it didn't work either)
I'm kinda baffled and would appreciate any help.
Thanks,
Hoyt
The code is very simple:
XML file:
<root>
<test>
<testValues>
<boolval attr="false">true</boolval>
<boolval attr="true">false</boolval>
<boolval attr="true">true</boolval>
<boolval attr="true">false</boolval>
</testValues>
</test>
</root>
The mxml file:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="testXML.send();"
cornerRadius="8" borderStyle="solid" borderThickness="2"
borderColor="#000000" themeColor="#00FF00"
backgroundGradientAlphas="[1.0, 1.0]"
backgroundGradientColors="[#008080, #008080]">
<mx:Script>
<![CDATA[
import
mx.controls.advancedDataGridClasses.AdvancedDataGridColumn;
import mx.collections.HierarchicalData;
import mx.binding.utils.ChangeWatcher;
import mx.events.ListEvent;
import mx.events.ItemClickEvent;
import mx.controls.dataGridClasses.DataGridColumn;
import mx.rpc.events.*;
import mx.collections.XMLListCollection;
import mx.controls.*;
import mx.binding.*;
import mx.binding.utils.BindingUtils;
import mx.rpc.xml.*;
[Bindable]
private var testList:XMLListCollection;
private function testXMLHandler(evt:ResultEvent):void {
testList = new
XMLListCollection(evt.result.test.testValues.boolval);
txtArea.text += testList.toString();
]]>
</mx:Script>
<mx:HTTPService id="testXML"
result="testXMLHandler(event)" resultFormat="e4x" url="
http://localhost/~hoytng/Workspace/studentDB/xml/test.xml"/>
<mx:DataGrid x="401" y="18" width="224" height="100"
dataProvider="{testList}">
<mx:columns>
<mx:DataGridColumn headerText="Column 1"
dataField="@attr"/>
<mx:DataGridColumn headerText="Column 2"
dataField="*"/>
</mx:columns>
</mx:DataGrid>
</mx:Application>

Answer 1

Hmm, I don't know off-hand if I'll be able to fix this, because of the following:
1.  The selection list property returns a Wire reference...I don't
know if there's a way for me to figure out which segment of a wire is
selected.
2.  The Insert method only takes a Wire reference...there's no way to
tell it a particular segment of the wire on which you want the insert
to take place.
I'll look into it, but I'm not hopeful it can be fixed without some changes to the internals of VI Scripting...
Thanks for the bug report.
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman