I've been pulling my hair out for the last couple of hours on what
appears to be a bug with mx:Tree. I'd like to be able to show the
"data" associated with a node on mouse rollover. The handler for the
"itemRollOver" event can access the data like this:
private function onTreeRollOver(event: ListEvent) : void {
debugText.text += "data=" + event.itemRenderer.data + "
index=" + event.rowIndex + "\n******\n";
}
This seems to be no problem when the node on a tree has subnodes.
However if the node that is rolled-over has no children, the
itemRenderer.data property is empty.
Am I missing something? I've been crawling thru the APIs but I don't
see any other way to get to the data (that works).
Here is a simple test case to illustrate:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="vertical"
width="800">
<mx:Tree id="tree1" labelField="@label" showRoot="true" width="100%"
itemRollOver="onTreeRollOver(event);">
<mx:XMLListCollection id="MailBox">
<mx:XMLList>
<folder label="Mail">
<folder label="INBOX"/>
<folder label="Personal Folder">
<Pfolder label="Business" />
<Pfolder label="Demo" />
<Pfolder label="Personal" isBranch="true" />
<Pfolder label="Saved Mail" />
</folder>
<folder label="Sent" />
<folder label="Trash" />
</folder>
</mx:XMLList>
</mx:XMLListCollection>
</mx:Tree>
<mx:TextArea id="debugText" width="100%" height="100%" text="" />
<mx:Script>
<![CDATA[
import mx.events.ListEvent;
private function onTreeRollOver(event: ListEvent) : void {
debugText.text += "data=" + event.itemRenderer.data + "
index=" + event.rowIndex + "\n******\n";
}
]]>
</mx:Script>
</mx:Application>
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