FILTERPROPERTY / FP
Returns the value of a specified property, optionally in a designated row and collection result set, as a string enclosed in quotes. If the value is empty, returns NULL as an unquoted string.
Return Value
String
Syntax
One of the following:
FILTERPROPERTY( propertyName ): Appears as FP or FILTERPROPERTY in the Event Action Expression Editor
FILTERPROPERTY( row#, propertyName ): Appears as FP2 or FILTERPROPERTY2 in the Event Action Expression Editor
FILTERPROPERTY( collection, row#, propertyName ): Appears as FP3 or FILTERPROPERTY3 in the Event Action Expression Editor
where:
- propertyName is the name of the property for which you want to retrieve the value. 
            Note: When using the IdoOnItem or IdoPostItem framework events to retrieve a property that is part of that event, this is the only accepted parameter.
 - row# is the one-based number of the row containing the property value you want to retrieve. 
            Note: This argument is used only with the IdoOnLoadCollection and IdoPostLoadCollection framework events. See the Usage section.
 - collection is the name of a result set containing a collection you loaded earlier using a Load IDO Collection action.
 
Usage
FP / FILTERPROPERTY is used only with these framework events:
- IdoOnItemDelete
 - IdoOnItemInsert
 - IdoOnItemUpdate
 - IdoPostItemDelete
 - IdoPostItemInsert
 - IdoPostItemUpdate
 
FP2 / FILTERPROPERTY2 is used only with the IdoOnLoadCollection and IdoPostLoadCollection framework events.
FP3 / FILTERPROPERTY3 is used with any event, but only after using a Load IDO Collection action.