      */
     public var triggerEvent:Event;
 
+    //----------------------------------
+    //  multipleSelectionChange
+    //----------------------------------
+
+    /**
+     *  Whether or not the change in selection was from a multiple selection
+     *  change or not. If true, the newIndex and oldIndex parameters are -1. 
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
+     */
+    public var multipleSelectionChange:Boolean;
+
     //--------------------------------------------------------------------------
     //
     //  Overridden methods: Event

     *  @param newIndex The zero-based index after the change.
     *
     *  @param triggerEvent The event that triggered this event.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9

        this.oldIndex = oldIndex;
        this.newIndex = newIndex;
        this.triggerEvent = triggerEvent;
        this.multipleSelectionChange = multipleSelectionChange; 
    }

    //--------------------------------------------------------------------------
