User-defined constraint.
Source position: db.pas line 1301
published property TCheckConstraint.CustomConstraint : string |
CustomConstraint is an SQL expression with an additional user-defined constraint. The expression should be enforced by a TDataset descendent when data is posted to the dataset. If the constraint is violated, then the dataset should raise an exception, with message as specified in TCheckConstraint.ErrorMessage
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Message to display when the constraint is violated. |