Serializes any object state contained in the ViewState or ControlState property and writes the state to the response stream.
virtual void Save() override
The HiddenFieldPageStatePersister implements the Save method to persist page and control state to a client by writing it to a <hidden> HTML element in the outgoing response to the client. The ObjectStateFormatter object accessed by the StateFormatter property is used to deserialize the data.
LoadHiddenFieldPageStatePersister ClassSystem.Web.UI Namespace