Capability of inserting a specific number or records ...

Question

Hi ,
Is there any way to permit the end-user enter a specific number or records in a multi-record block..... according to the number of fetched records in another block...????
I assume that the trigger when-create-record can do that ... Are there any other solutions...???
Thanks ,
Simon

Answer 1

..Or,
this is for single block ,but i believe works also for multirecord
A parameter for defining the limit for the number of records the user can
query.
1. Define a parameter, :max_record, which is the limit for the number of records
the user can enter. Make sure to define this parameter as numeric
and provide a default value.
2. For a form with a single block, create the following triggers at block level:
a. Attach the following PL/SQL block to a KEY-CREREC trigger to create a
record only when :system.cursor_record is less than :max_record.
DECLARE
a NUMBER;
b NUMBER;
BEGIN
a := :system.cursor_record;
LAST_RECORD;
b := :system.cursor_record;
IF b >= :parameter.max_record THEN
GO_RECORD(a);
MESSAGE('max record exceeded - create rec III');
RAISE FORM_TRIGGER_FAILURE;
END IF;
GO_RECORD(a);
IF :system.cursor_record < :parameter.max_record THEN
CREATE_RECORD;
ELSE
MESSAGE('max record exceeded - create rec ');
RAISE FORM_TRIGGER_FAILURE;
END IF;
END;
b. To navigate to the next record when :system.cursor_record is
less than the :max_record, create a KEY-DOWN trigger.
IF :system.cursor_record < :parameter.max_record THEN
DOWN;
ELSE
MESSAGE('max records key-down');
END IF;