TDataSet.FieldDefs property
Definitions of available fields in the underlying database.
Declaration
property FieldDefs: TFieldDefs read FFieldDefs write SetFieldDefs;Description
FieldDefs is filled by the
TDataset descendent when the dataset is opened. It represents the fields as they
are returned by the particular database when the data is initially fetched from the engine. If the dataset uses dynamically created
fields (when
DefaultFields is
True), then for each item in this list, a field i
instance will be created with default properties available in the field definition.
If the dataset uses persistent fields, then the fields in the field list will be checked against the items in the
FieldDefs property.
If no matching item is found for a persistent field, then an exception will be raised. Items that exist in the fielddefs property but for which
there is no matching field instance, are ignored.See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.