code: function FlipView_dispose() {
                      /// <signature helpKeyword="WinJS.UI.FlipView.dispose">
                      /// <summary locid="WinJS.UI.FlipView.dispose">
                      /// Disposes this FlipView.
                      /// </summary>
                      /// </signature>
                      _WriteProfilerMark("WinJS.UI.FlipView:dispose,StopTM");
                      if (this._disposed) {
                          return;
                      }
  
                      _ElementUtilities._globalListener.removeEventListener(this._flipviewDiv, 'wheel', this._windowWheelHandlerBound);
                      _ElementUtilities._globalListener.removeEventListener(this._flipviewDiv, 'mousewheel', this._windowWheelHandlerBound);
                      _ElementUtilities._resizeNotifier.unsubscribe(this._flipviewDiv, this._resizeHandlerBound);
                      this._elementResizeInstrument.dispose();
  
  
                      this._disposed = true;
                      this._pageManager.dispose();
                      this._itemsManager.release();
                      this.itemDataSource = null;
                  }
docs: Public methods