[FLEX-20122] Using a Halo ComboBox as an itemRenderer of a Halo List causes a RTE

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.0 (Release)
• Component/s: mx: List
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 09/Jul/09 10:11
• Updated: 05/Apr/11 11:19
• Resolved: 09/Jul/09 17:37

Description

Steps to reproduce:
1. Load the bugfile which uses a List with ComboBox itemRenderer

Actual Results: RTE
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.controls::ComboBase/updateDisplayList()
at mx.controls::ComboBox/updateDisplayList()
at mx.core::UIComponent/validateDisplayList()
at mx.managers::LayoutManager/validateClient()
at mx.core::UIComponent/validateNow()
at mx.controls.listClasses::ListBase/drawItem()
at mx.controls::List/makeRowsAndColumns()
at mx.controls.listClasses::ListBase/makeRowsAndColumnsWithExtraRows()
at mx.controls.listClasses::ListBase/updateDisplayList()
at mx.controls::List/updateDisplayList()
at mx.controls.listClasses::ListBase/validateDisplayList()
at mx.managers::LayoutManager/validateDisplayList()
at mx.managers::LayoutManager/doPhasedInstantiation()
at mx.managers::LayoutManager/doPhasedInstantiationCallback()

Expected Results: no runtime error

Workaround (if any):