[FLEX-35362] Fatal error pressing certain key combinations with DropDownList focused

• Type: Bug
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Apache Flex 4.16.0
• Fix Version/s: Apache Flex 4.17.0
• Component/s: Spark: DropDownList
• Assignee: Mihai Chira
• Reporter: Mihai Chira
• Created: 18/Oct/17 11:49
• Updated: 18/Oct/17 11:56

Description

Steps to reproduce A:

• run the attached air application and follow the instructions

Steps to reproduce B:

• focus any DropDownList (by pressing TAB)
• hold CTRL pressed
• press DOWN then immediately one of these keys: LEFT / RIGHT / END / HOME / PAGE_UP / PAGE_DOWN, whichever is easier to press at nearly the same time as DOWN.

Expected results: the drop down opens normally
Actual results: fatal:

TypeError: Error #1009
	at spark.components.supportClasses::DropDownListBase/keyDownHandler()