[FLEX-23429] Setting errorString on AIR MX Window throws RTE

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Won't Fix
• Affects Version/s: Adobe Flex SDK 4.1 (Release)
• Component/s: mx: Window
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 09/Mar/10 17:50
• Updated: 04/Jun/10 15:55
• Resolved: 22/Mar/10 14:45

Description

Found in 4.1.0.14649

Steps to reproduce:
1. Compile and run attached MXML file.
2. CLick the button to launch the mx:Window

Actual Results:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.core::Window/styleChanged()[E:\dev\4.x\frameworks\projects\airframework\src\mx\core\Window.as:2702]
at mx.core::UIComponent/setBorderColorForErrorString()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\UIComponent.as:6803]
at mx.core::UIComponent/commitProperties()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\UIComponent.as:7995]
at mx.core::Container/commitProperties()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\Container.as:3214]
at mx.core::Window/commitProperties()[E:\dev\4.x\frameworks\projects\airframework\src\mx\core\Window.as:2266]
at mx.core::Window/open()[E:\dev\4.x\frameworks\projects\airframework\src\mx\core\Window.as:2973]
at Flex41_14641/___Flex41_14641_Button1_click()[C:\Documents and Settings\pdehaan\My Documents\Adobe Flash Builder 4_new1\AIRohAIR\src\Flex41_14641.mxml:8]

Expected Results:
No RTE. Red border for error rect.

Workaround (if any):
Set the error string via ActionScript in creationComplete handler (instead of via MXML):

Bad: <mx:Window errorString="errata" />
Good: <mx:Window creationComplete="errorString='errata';" />