         // methods if they want to
         iterator = collection.createCursor();
         collectionIterator = collection.createCursor(); //IViewCursor(collection);
-
         // trace("ListBase added change listener");
         collection.addEventListener(CollectionEvent.COLLECTION_CHANGE, collectionChangeHandler, false, 0, true);
-
+		
         clearSelectionData();
 
         var event:CollectionEvent = new CollectionEvent(CollectionEvent.COLLECTION_CHANGE);

 *  columns for a TileList layed out horizontally, you will get striping.  If
 *  the number of columns is an odd number, you will get a checkerboard pattern.
 *  </p>
 *
 *  <p>Only takes effect if no <code>backgroundColor</code> is specified.</p>
 *
 *  @default undefined
 *  

            }

            len = selectionDataArray.length;
            var selectionData:ListBaseSelectionData;
            var lastSelectionData:ListBaseSelectionData = firstSelectionData;
            if (len)
            {
                selectionData = selectionDataArray[0];
                if (selectionData) // can be null if selectedItem not in DP
                {
                    uid = itemToUID(selectionData.data);
                    insertSelectionDataBefore(uid, selectionData, firstSelectionData);
                    lastSelectionData = selectionData;
                }
            }
            for (i = 1; i < len; i++)
            {
                selectionData = selectionDataArray[i];
                if (selectionData) // can be null if selectedItem not in DP
                {
                    uid = itemToUID(selectionData.data);
                    insertSelectionDataAfter(uid, selectionData, lastSelectionData);
                    lastSelectionData = selectionData;
                }
            }
            selectionDataArray = null;
            proposedSelectedItemIndexes = null;
