[FLEX-23178] [Mirroring] if direction is set to anything for TileList or HorizontalList you get an RTE if you use arrows to go past viewable items

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: mx: TileList
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 18/Feb/10 15:36
• Updated: 23/Feb/10 11:25
• Resolved: 23/Feb/10 10:51

Description

Steps to reproduce:
1. run the attached application (no direction has been set yet - it's just the default)
2. click first item and press right arrow many times until you make the component scroll
-->no RTE
3. now set direction with combobox (ltr or rtl)
4. click the first item and press the arrow (left arrow if you choose 'rtl' or the right arrow if you choose 'ltr') several times until you make the component scroll

Actual Results:
TypeError: Error #1010: A term is undefined and has no properties.
at mx.controls.listClasses::TileBase/finishKeySelection()[E:\dev\4.x\frameworks\projects\framework\src\mx\controls\listClasses\TileBase.as:1691]
at mx.controls.listClasses::TileBase/moveSelectionHorizontally()[E:\dev\4.x\frameworks\projects\framework\src\mx\controls\listClasses\TileBase.as:1646]
at mx.controls.listClasses::TileBase/keyDownHandler()[E:\dev\4.x\frameworks\projects\framework\src\mx\controls\listClasses\TileBase.as:2563]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\UIComponent.as:12442]
at mx.managers::SystemManager/keyDownHandler()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\SystemManager.as:2675]

Expected Results:
no RTE and items continue being selected and scrolling happens if needed

Workaround (if any):