public void DisposeEventBridge() { if (null != __RectangleEvents_SinkHelper) { __RectangleEvents_SinkHelper.Dispose(); __RectangleEvents_SinkHelper = null; } if (null != _dispRectangleEvents_SinkHelper) { _dispRectangleEvents_SinkHelper.Dispose(); _dispRectangleEvents_SinkHelper = null; } _connectPoint = null; }