The current change state of the ProDataSet temp-table row associated with the buffer object handle.

Data type: INTEGER

Access: Read-only

Applies to: Buffer object handle

Note: The ROW-STATE attribute corresponds to the ROW-STATE function.

When the TRACKING-CHANGES attribute is set to TRUE for a ProDataSet temp-table, the AVM tracks changes to the data in that temp-table using a before-image temp-table that contains the original version of each row. You can think of the temp-table itself as the after-image because it contains the latest version of each row.

Every row in the after-image table that has been modified or created corresponds to a row in the before-image table. Deleted rows do not appear in the after-image table, because it reflects the current state of the data. Every row in the before-image table has a non-zero ROW-STATE, because every row is the before-image of a deleted, created, or modified row in the after-image table. Unchanged rows do not appear in the before-image table.

You can use the ROW-STATE attribute on each row in either the after-image table or the before-image table to determine whether a row has changed and how it has changed.

The possible values can be expressed as compiler constants. The following table lists these values.

Table 1. Row state values
Compiler constant Value Description
ROW-UNMODIFIED 0 The row was not modified.
ROW-DELETED 1 The row was deleted.
ROW-MODIFIED 2 The row was modified.
ROW-CREATED 3 The row was created.