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Filtered Portals

Allowing users to select rows within portals allows portals to serve multiple functions: They can both display information to the user and also, through selections, act on that data somehow. However, in this chapter thus far we have dealt only with portals that are driven by fixed relationships. The data displayed remains constant and changes only when the data itself changes (when records are added to or deleted from a database.)

A portal filter extends your capabilities to allow you to dynamically alter or constrain the rows of data displayed in a portal.


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