TADAutoIncField.ClientAutoIncrement Property

Specifies when dataset need to generate auto incremental value for new record column.

Group

Links

TADAutoIncField Class, TADAutoIncField Members, uADCompDataSet Namespace, Example, published, See Also

Set ClientAutoIncrement property to True (default value) and dataset will generate auto incrementing value for new record column.

The dataset uses internal auto increment value generator. The initial value is equal to AutoIncrementSeed. The value is incrementing for new record by AutoIncrementStep. After dataset is closed, the internal auto increment value generator is reset to AutoIncrementSeed.

This may be usefull in CachedUpdates = True mode.

Syntax

property ClientAutoIncrement: Boolean;

Example

ADQuery1.CachedUpdates := True;
ADQuery1.Open;
ADQuery1.Append;
....
ADQuery1.Post;
// TADAutoIncField(ADQuery1.Fields[0]).Value -> -1
ADQuery1.Append;
....
ADQuery1.Post;
// TADAutoIncField(ADQuery1.Fields[0]).Value -> -2
ADQuery1.Append;
....
ADQuery1.Post;
// TADAutoIncField(ADQuery1.Fields[0]).Value -> -3
ADQuery1.ApplyUpdates;

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