[FLEX-33992] Zero division at Grid.as setters for horizontalScrollPosition and verticalScrollPosition

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.10.0
• Fix Version/s: Apache Flex 4.12.0
• Component/s: Spark: DataGrid
• Labels: easyfix easytest
• Assignee: Justin Mclean
• Reporter: Andrey Gorbatov
• Created: 13/Dec/13 10:07
• Updated: 16/Dec/13 11:59
• Resolved: 16/Dec/13 06:56

Description

See
override public function set horizontalScrollPosition(value:Number):void at spark Grid.as line 735:
const gridMaxHSP:Number = contentWidth - width;
gridMaxHSP may be zero. And later
const hsp:Number = (centerMaxHSP / gridMaxHSP) * value;
After zero division hsp is NaN and DataGrid content dissappears.
The same thing is for verticalScrollPosition setter.