Release 10.1A: OpenEdge Development:
ADM Reference

ModifyFields

Property that determines which fields should set DataModified to TRUE in their containing viewer when fields are modified. For data-source fields, this property also controls the fields from which values are collected for passing to the data source and update target.

Valid values for this property are:

All — All EnabledObjects should set DataModified.
None — No EnabledObjects should set DataModified.
EnabledFields — Only Fields from the data source should set DataModified.
Updatable — Only EnabledFields that can be updated in the data source should set DataModified.
Comma separated list — List of object names that can set DataModified when changed.
Data type: CHARACTER
Notes:
Read and Write.
Setting DataModified to TRUE in the viewer enables Save and Reset in the TableioSource toolbar.
DataFields that do not set DataModified using one of these values are not passed to the update target on save. However, the data source value is displayed again on save.
ModifyFields is used to determine which field values are collected by the collectChanges procedure. For more information, see the "collectChanges" section.
You can edit this property using the viewer's Instance Property dialog box.