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After Parameter Form trigger

The After Parameter Form trigger fires after the Runtime Parameter Form is displayed. From this trigger, you can access parameters and check their values. This trigger can also be used to change parameter values or, if an error occurs, return to the Runtime Parameter Form. Columns from the data model are not accessible from this trigger. If the Runtime Parameter Form is suppressed, the After Parameter Form trigger still fires. Consequently, you can use this trigger for validation of command line parameters or other data.

Definition Level

Report 

On Failure

Returns to the Runtime Parameter Form. If the Form is suppressed, then returns to place from which you ran the report. 

See also

About triggers

About report triggers

Creating a report trigger

Deleting a report trigger

About DML and DDL