Returns the ID of the portal page on which the portlet is currently displayed.
The page ID.
 This is a new feature in portal version 5.0; this method throws ProtocolNotSupportedException when used with any prior version of the portal. The administrator must configure the portal to send the Page ID to the portlet. 
| Exception Type | Condition | 
|---|---|
| NotGatewayedException | The request is not gatewayed. | 
| ProtocolNotSupportedException | Used with version of the portal earlier than 5.0. | 
| NotInRequestException | The administrator has not configured the portal to send the Page ID to this portlet. | 
IPortletRequest Interface | Plumtree.Remote.Portlet Namespace