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From "Mihai Chira (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLEX-34212) invalidIndex RTE in LinearLayoutVector when mouse scrolling List
Date Mon, 07 Apr 2014 11:46:25 GMT
Mihai Chira created FLEX-34212:
----------------------------------

             Summary: invalidIndex RTE in LinearLayoutVector when mouse scrolling List
                 Key: FLEX-34212
                 URL: https://issues.apache.org/jira/browse/FLEX-34212
             Project: Apache Flex
          Issue Type: Bug
          Components: Spark: List, Spark: VerticalLayout
    Affects Versions: Apache Flex 4.11.0
            Reporter: Mihai Chira
             Fix For: Apache Flex 4.13.0


Steps to reproduce:
1. Import and run the attached project.
2. Scroll the list to the bottom.

Actual result: the RTE below, caused by the perfectly timed MOUSE_WHEEL event.
Desired result: no RTE, and the list should keep adding items despite the MOUSE_WHEEL event.



Notes:
- four of our users reported this bug within a few months. This means that the odds of scrolling
the list exactly between setting its dataProvider and its commitProperties() function being
called is not so low.
- s:DataGrid seems to work fine in this scenario.


RTE:
Error: invalidIndex
	at spark.layouts.supportClasses::LinearLayoutVector/start()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\supportClasses\LinearLayoutVector.as:893]
	at spark.layouts.supportClasses::LinearLayoutVector/getBounds()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\supportClasses\LinearLayoutVector.as:1117]
	at spark.layouts::VerticalLayout/getElementBounds()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\VerticalLayout.as:907]
	at spark.layouts::VerticalLayout/findLayoutElementBounds()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\VerticalLayout.as:1187]
	at spark.layouts::VerticalLayout/getElementBoundsBelowScrollRect()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\VerticalLayout.as:1217]
	at spark.layouts.supportClasses::LayoutBase/getVerticalScrollPositionDelta()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\supportClasses\LayoutBase.as:1357]
	at spark.components.supportClasses::GroupBase/getVerticalScrollPositionDelta()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\supportClasses\GroupBase.as:1420]
	at spark.components::VScrollBar/http://www.adobe.com/2006/flex/mx/internal::mouseWheelHandler()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\VScrollBar.as:559]
	at flash.events::EventDispatcher/dispatchEventFunction()
	at flash.events::EventDispatcher/dispatchEvent()
	at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:13152]
	at mx.managers::SystemManager/mouseEventHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2918]
	at flash.events::EventDispatcher/dispatchEventFunction()
	at flash.events::EventDispatcher/dispatchEvent()
	at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:13152]
	at _MouseOutGlitch/add20Items()[C:\Users\Developer1\workspace\_MouseOutGlitch\src\_MouseOutGlitch.mxml:36]
	at Function/http://adobe.com/AS3/2006/builtin::apply()
	at SetIntervalTimer/onTimer()
	at flash.utils::Timer/_timerDispatch()
	at flash.utils::Timer/tick()



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