The DevExpress ASP.NET Hidden Field (ASPxHiddenField) control allows you to simplify the process of storing a set of values that should be persisted and synchronized between the server side and client side across round trips.
Using the ASPxHiddenField as a dictionary, you can pass any number of simple or typed values from the server to the client side.
On the client, you can easily access and modify these values (and even add or remove values) using the control's comprehensive client-side API.
If required, the changes made to the values on the client side can be synchronized with the server
(this is controlled by the SyncWithServer property).
In this demo, a single ASPxHiddenField control is used to store selections made on all pages of a standard MultiView control.