Show the scrollbar if the children exceed the owner's dimension.
The size of the owner is not adjusted to account
for the scrollbars when they appear, so this may cause the
scrollbar to obscure the contents of the control or container.
OFF
Constant
public static const OFF:String = off
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Never show the scrollbar.
ON
Constant
public static const ON:String = on
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Always show the scrollbar.
The size of the scrollbar is automatically added to the size
of the owner's contents to determine the size of the owner
if explicit sizes are not specified.