Revision 1279061

Transferred from the Adobe Open Source Subversion Repository

Revision: 18478
Author:   klin@adobe.com
Date:     2010-11-05T21:01:35.464312Z

Log Message: 
-----------
Added columns IList collection change handling in GridColumnHeaderGroupLayout. GCHGL now preserve the visible sort indicators when columns are added, removed, or moved. Also, fixed a related bug in GridDimensions where handling the move event for columns was causing an RTE.

QE notes: No
Doc notes: No
Bugs: SDK-28375
Reviewer: Hans
Tests run: cyclone server, checkintests
Is noteworthy for integration: No

Modified Paths:
--------------
<path kind="file" action="M">/private/flex/sdk/branches/hero_private/frameworks/projects/spark/src/spark/components/GridColumnHeaderGroup.as</path>
<path kind="file" action="M">/private/flex/sdk/branches/hero_private/frameworks/projects/spark/src/spark/components/gridClasses/GridColumnHeaderGroupLayout.as</path>
<path kind="file" action="M">/private/flex/sdk/branches/hero_private/frameworks/projects/spark/src/spark/components/gridClasses/GridDimensions.as</path>