ToDataSetList

public IReadOnlyList<IptcDataSet> ToDataSetList()

using (Metadata metadata = new Metadata(Constants.PsdWithIptc))
{
    IIptc root = metadata.GetRootPackage() as IIptc;
    if (root != null && root.IptcPackage != null)
    {
        foreach (var dataSet in root.IptcPackage.ToDataSetList())
        {
            Console.WriteLine(dataSet.RecordNumber);
            Console.WriteLine(dataSet.DataSetNumber);
            Console.WriteLine(dataSet.AlternativeName);
            Console.WriteLine(dataSet.Value);
        }
    }
}