Release 10.1A: OpenEdge Development:
ADM Reference

assignPageProperty

Procedure that assigns a property in all objects on the CurrentPage of a SmartContainer. If an object on the page does not have a property, it is ignored without error.

Location: containr.p

Parameters:

INPUT pcProp AS CHARACTER

The property to set.

INPUT pcValue AS CHARACTER

The value to assign to that property.

Notes:

This variation on assignLinkProperty is necessary because the notion of paging does not fit well with PUBLISH/SUBSCRIBE. This is because there is a single property (PageNTargets) that stores the handles of all of a SmartContainer’s objects that are not on page 0 in a specially delimited list.
Although the pcValue parameter is specified in CHARACTER form, you can use these parameters to assign values to noncharacter properties.
All objects in a Container subscribe to initializeObject, and so on, but the paging performs the operation on subsets of those objects at a time. That is, the container does not publish initializeObject to objects on a page other than zero until that page is first viewed. So properties such as HideOnInit, which are set as part of initialization, must be set page-by-page.
Examples:

/* ** Sets the DataModified property to "no" */ RUN assignPageProperty (‘DataModified’:U, ‘no’:U).