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NotEmpty

property NotEmpty: Boolean read;

Example​

function HasCurrentPipelineRow(const View: TdaCDSQueryDataView): Boolean;
begin
  Result := View.NotEmpty;
end;

Usage​

NotEmpty returns the exact inverse of DataPipelines[0].EOF, meaning “pipeline not at EOF” rather than proving the view contains any records.

  • Read it as “a forward-loop current row may be available”, not “records exist somewhere in the view”.
  • Rewind with First before using it as a current-row guard after arbitrary navigation.
  • Use explicit existence logic for decisions that must distinguish an exhausted cursor from a zero-row result.

Additional Technical Info​

NotEmpty is exactly not DataPipelines[0].EOF; it is the inverse of Empty, including that property's cursor-state limitation.

Source-backed behaviour​

The implementation does not inspect RecordCount, BOF or an actual row buffer. It returns false for an empty view and also for a non-empty view whose pipeline has advanced after the last row. It returns true only while the pipeline is not at EOF. Visible descendants inherit this getter.

The property assumes pipeline index zero exists and can raise during incomplete initialization. It normally reflects the same dataset as EOF, but pipeline synchronization is an extra layer.

Official terminal references​

Created 2026-07-15