iTextSharp.text.pdf.PdfWriter.AddOCGRadioGroup C# (CSharp) Méthode

        public void AddOCGRadioGroup(List<PdfLayer> group)
        {
            PdfArray ar = new PdfArray();
            for (int k = 0; k < group.Count; ++k) {
                PdfLayer layer = group[k];
                if (layer.Title == null)
                    ar.Add(layer.Ref);
            }
            if (ar.Size == 0)
                return;
            OCGRadioGroup.Add(ar);
        }