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TDataSet.RecNo
TDataSet
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Indicates the active record in the dataset.

property RecNo: Integer;

Description
As implemented in TDataSet, the value of RecNo is always -1. Ordinarily an application does not access RecNo at the TDataSet level. Instead a redeclared and implemented RecNo property in a descendant class such as TTable is accessed. RecNo provides a fallback property for derived datasets that do not support record numbers.
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