iTextSharp.text.pdf.PdfAcroForm.AddRadioButton C# (CSharp) Метод

        public PdfFormField AddRadioButton(PdfFormField radiogroup, string value, float llx, float lly, float urx, float ury)
        {
            PdfFormField radio = PdfFormField.CreateEmpty(writer);
            radio.SetWidget(new Rectangle(llx, lly, urx, ury), PdfAnnotation.HIGHLIGHT_TOGGLE);
            string name = ((PdfName)radiogroup.Get(PdfName.V)).ToString().Substring(1);
            if (name.Equals(value)) {
            radio.AppearanceState = value;
            }
            else {
            radio.AppearanceState = "Off";
            }
            DrawRadioAppearences(radio, value, llx, lly, urx, ury);
            radiogroup.AddKid(radio);
            return radio;
        }