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Home Programming DataLab DLabPascal 2-Dimensional Arrays TDataTable Methods CountNominalIDs
See also: AddNominalID, ElemNominal, NominalID, ClearNominalIDs 

CountNominalIDs

Declaration: TDataTable.CountNominalIDs (Col: integer): integer;
The method CountNominalIDs returns the number of defined nominal identifiers of the column Col. Please note that number of defined Nominal IDs is not necessarily equal to the ordinal of the highest nominal ID (since some IDs in between might be undefined and are thus not counted).