4D Doc Center : APPLY TO SUBSELECTION

4D v13.4

APPLY TO SUBSELECTION


APPLY TO SUBSELECTION ( subtable ; statement )

Parameter	Type	Description
subtable	Subtable	Subtable to which to apply the formula
statement	Statement	One line of code or a method

Compatibility note

Subtables are no longer supported starting with version 11 of 4D. A compatibility mechanism ensures the functioning of this command in converted databases; however, it is strongly recommended to replace any subtables with standard related tables.

Description

APPLY TO SUBSELECTION applies statement to each subrecord in the current subselection of subtable. The statement may be a statement or a method. If the statement modifies a subrecord, the modified subrecord is written to disk only when the parent record is written. If the subselection is empty, APPLY TO SUBSELECTION has no effect.

APPLY TO SUBSELECTION can be used to gather information from the subselection or to modify the subselection.