Application Model Overview : Page Variables

Page Variables
You can define Page Variables for a Page. Page Variables are variables that you can use only within the context of the Page itself. For example, you can use a Page Variable to perform a calculation on the values of Message Part elements. You could also use a Page Variable to do a database query or invoke a web service.
You cannot use Page Variables in the Actions invoked from the Page. If you want to access data in an Action, then you must include that data in the Page Message. In particular, you cannot use Page Variables to implement scrollable data sets.
Related Topics:
Pages and Actions
Page Message
How the Page Message is Populated

ActiveGrid
ActiveGrid Documentation
Version 2.0