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    TField.DefaultExpression

    Default value for the field.

    Declaration

    Source position: db.pas line 476

    published property DefaultExpression: string;

    Description

    DefaultValue can be set to a value that should be entered in the field whenever the TDataset.Append or TDataset.Insert methods are executed. It should contain a valid SQL expression that results in the correct type for the field.

    This feature is not yet implemented in FPC.

    See also

    Name Description
    TDataset.Insert Insert a new record at the current position.
    TDataset.Append Append a new record to the data.
    TDataset.CustomConstraint