Field-level events are fired when something is about to or has just occurred in a field. For example, one event is fired just before a field is to be interpreted and another is fired just after the interpretation.
For field-level events there is always an active Field, FieldDef, Form, FormDef, Job, and Application. If the job description includes sets, there is also an active Set and SetDef . If the job description includes batches, there is also an active BatchDef and Batch.
Field-level events:
Event descriptions (general info)
Where to find additional information about events and methods