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https://issues.apache.org/jira/browse/FLEX-18746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mihai Chira reopened FLEX-18746:
--------------------------------
Assignee: Mihai Chira (was: Adobe JIRA)
> Exception inside expandItem() when collapsing branch with all items removed
> since branch opening
> ------------------------------------------------------------------------------------------------
>
> Key: FLEX-18746
> URL: https://issues.apache.org/jira/browse/FLEX-18746
> Project: Apache Flex
> Issue Type: Bug
> Components: mx: Tree
> Affects Versions: Adobe Flex SDK 3.2 (Release)
> Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Mihai Chira
>
> Steps to reproduce:
> Launch the following example and wait 6 sec:
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="absolute"
> creationComplete="init();">
> <mx:Script>
> <![CDATA[
> import mx.collections.ArrayCollection;
>
> [Bindable]
> private var dataProvider:ArrayCollection;
>
> private var folder0:Object;
>
> private var folder1:Object;
>
> private var item:Object;
>
> private function init():void
> {
> dataProvider = new ArrayCollection();
> folder0 = { label: "Some folder 0", children: new
> ArrayCollection() };
> item = { label: "Item" };
> folder1 = { label: "Some folder 1", children: new
> ArrayCollection([ item ]) };
> dataProvider.addItem(folder1);
>
> var timer1:Timer = new Timer(2000, 1);
> timer1.addEventListener(TimerEvent.TIMER, timer1_timerHandler);
> timer1.start();
>
> var timer2:Timer = new Timer(4000, 1);
> timer2.addEventListener(TimerEvent.TIMER, timer2_timerHandler);
> timer2.start();
>
> var timer3:Timer = new Timer(6000, 1);
> timer3.addEventListener(TimerEvent.TIMER, timer3_timerHandler);
> timer3.start();
> }
>
> private function timer1_timerHandler(event:TimerEvent):void
> {
> tree.expandItem(folder1, true, true, true);
> }
>
> private function timer2_timerHandler(event:TimerEvent):void
> {
> dataProvider.addItemAt(folder0, 0);
> ArrayCollection(folder1.children).removeItemAt(0);
> tree.expandItem(folder0, true, true, true);
> ArrayCollection(folder0.children).addItem(item);
> }
>
> private function timer3_timerHandler(event:TimerEvent):void
> {
> tree.expandItem(folder1, false, true, true);
> }
>
> ]]
> >
> </mx:Script>
> <mx:Label text="Just wait 6 sec and you'll see the exception."
> fontSize="20"
> top="50" horizontalCenter="0"/>
> <mx:Tree dataProvider="{dataProvider}" id="tree" width="200"
> height="200"
> horizontalCenter="0" verticalCenter="0"/>
> </mx:Application>
> Actual Results:
> TypeError: Error #1010: Term is undefined and has no properties
> at
> mx.controls::Tree/expandItem()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\controls\Tree.as:1772]
> at
> mx.controls::Tree/http://www.adobe.com/2006/flex/mx/internal::expandItemHandler()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\controls\Tree.as:3418]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:9298]
> at
> mx.controls::Tree/http://www.adobe.com/2006/flex/mx/internal::dispatchTreeEvent()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\controls\Tree.as:3334]
> at
> mx.controls.treeClasses::TreeItemRenderer/disclosureMouseDownHandler()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\controls\treeClasses\TreeItemRenderer.as:594]
>
> Expected Results:
> Node collapse without exception
>
> Workaround (if any):
> Do not use open/close animation, ex. set <mx:Tree openDuration="0"/>
>
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