1. A method for managing a state of a server-side control object corresponding to a client-side user interface element incorporated in a web page displayed on a client, the method comprising: creating the server-side control object to process the client-side user interface element; receiving from the client a transportable state structure including state information indicating a state value for at least the one server-side control object, and loading the state value from the state information into a property of the server-side control object, if the state value is associated with the server-side control object.