     {
         if (columnHeaderBar && event.property == "horizontalScrollPosition")
             columnHeaderBar.horizontalScrollPosition = Number(event.newValue);
-    }
+    }    
     
     protected function grid_columnsChangedEventHandler(event:Event):void
     {
         if (columnHeaderBar)
             columnHeaderBar.dataProvider = columns;
-        // TBD(hmuller) - should be done at commitproperties time
     }    
     
 }

import spark.events.GridEvent;
import spark.events.GridSelectionEvent;
import spark.events.GridSelectionEventKind;

use namespace mx_internal;


    public function set columns(value:IList):void
    {
        if (setGridProperty("columns", value))
            dispatchChangeEvent("columnsChanged");
    }
    
    /**
