iTextSharp.text.pdf.AcroFields.GetListOption C# (CSharp) Метод

        private String[] GetListOption(String fieldName, int idx) {
            Item fd = GetFieldItem(fieldName);
            if (fd == null)
                return null;
            PdfArray ar = fd.GetMerged(0).GetAsArray(PdfName.OPT);
            if (ar == null)
                return null;
            String[] ret = new String[ar.Size];
            for (int k = 0; k < ar.Size; ++k) {
                PdfObject obj = ar.GetDirectObject( k );
                try {
                    if (obj.IsArray()) {
                        obj = ((PdfArray)obj).GetDirectObject(idx);
                    }
                    if (obj.IsString())
                        ret[k] = ((PdfString)obj).ToUnicodeString();
                    else
                        ret[k] = obj.ToString();
                }
                catch {
                    ret[k] = "";
                }
            }
            return ret;
        }