Data.DB.TDataSet.Constraints

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[–] Properties Type: property Visibility: protected Source:

Data.DB.pas

Data.DB.hpp

Unit: Data.DB Parent: TDataSet

Delphi

property Constraints: TCheckConstraints read FConstraints write SetConstraints;

C++

__property TCheckConstraints* Constraints = {read=FConstraints, write=SetConstraints};

Description

Specifies record-level constraints that must be met when editing the data.

Use Constraints to read or add record-level constraints to the dataset. Record-level constraints usually impose relationships between the fields in a single record. Constraints that limit the value of a single field should be added to the individual field components.

See Also

• TCheckConstraint

• CustomConstraint

• ImportedConstraint

• Constraining Data Values