[FLEX-33263] FocusOut in datagrid causes RTE if target.parent is null

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.8 (parity release)
• Fix Version/s: Apache Flex Next
• Component/s: mx: DataGrid
• Assignee: Carol Frampton
• Reporter: João Fernandes
• Created: 16/Nov/12 14:50
• Updated: 16/Nov/12 15:28
• Resolved: 16/Nov/12 15:28

Description

during focusOutHandler, there is a condition that access target.parent.parent without checking if target.parent is null or not.
There is a quick fix by inverting the 2 last conditions so at line 5017 instead of having

if (target is IListItemRenderer && target.parent.parent == this && target.parent is ListBaseContentHolder)

we should have

if (target is IListItemRenderer && target.parent is ListBaseContentHolder && target.parent.parent == this)

this way, it will never throw an RTE because if target.parent is null, it will never evaluate the last portion.