# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2013-08-03 19:01:56 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/363736510878990336) Can you dynamically cast a Managed Object into a subclass from NSClassFromString? I want to ensure that the subclass' method is run.