The SaveStateToCookiesID property allows you to control the manner in which the ASPxPivotGrid's state information is persisted in cookies. If this property is set to an empty string (the default value), the name of the cookie which will store the ASPxPivotGrid's state is composed automatically, based upon the page name and the ASPxPivotGrid's identifier. In this case, such a cookie is tightly linked with the requested page and the corresponding ASPxPivotGrid control. In some cases however, it may be required that a ASPxPivotGrid's state information can be shared between different requested pages, for example, when a ASPxPivotGrid is placed on a master page and its state needs to be persisted while displaying different content pages. In this case, you can assign any specific identification name to the SaveStateToCookiesID property, and if this name is independent from the page name and the ASPxPivotGrid's identifier, the state information stored by the cookie can be applied to all the ASPxPivotGrid controls (on all the web pages) whose SaveStateToCookiesID property is set to the same value.