         _lastIndexInView = lastIndex;
         dispatchEvent(new Event("indexInViewChanged"));
     }
-    
+
     /**
      *  An index is "in view" if the corresponding non-null layout element is 
      *  within the horizontal limits of the layout target's scrollRect

    [Inspectable(category="General")]

    /**
     *  Specifies the number of elements to display.
     * 
     *  If <code>requestedColumnCount</code> is -1, then all of them elements are displayed.
     * 
     *  This property implies the layout's <code>measuredWidth</code>.
     * 
     *  If the width of the <code>target</code> has been explicitly set,
     *  then this property has no effect.
     * 
     *  @default -1

            }
        }   

        if (virtualLayout)
            updateDisplayListVirtual(i0);
                
        setIndexInView(i0, i1);
    }

