예제 #1
0
        static List <string> GetRadioGroupCheckedAppearanceNames(PdfDocumentProcessor processor, string fieldName)
        {
            if (processor.Document == null || processor.Document.AcroForm == null)
            {
                return(null);
            }
            PdfInteractiveFormField button = FindRadioButton(processor.Document.AcroForm.Fields, "", fieldName);

            if (button != null)
            {
                List <string> result = new List <string>();
                foreach (PdfInteractiveFormField kid in button.Kids)
                {
                    if (kid.Widget != null && kid.Widget.Appearance != null)
                    {
                        List <string> names = kid.Widget.Appearance.Down.Forms.Keys.ToList();

                        if (names.Count == 1)
                        {
                            result.Add(names[0]);
                        }
                        if (names.Count > 1)
                        {
                            if (names[0] == "Off")
                            {
                                result.Add(names[1]);
                            }
                            else
                            {
                                result.Add(names[0]);
                            }
                        }
                    }
                }
                return(result);
            }
            return(null);
        }
예제 #2
0
 static PdfInteractiveFormField FindRadioButton(IEnumerable <PdfInteractiveFormField> fields, string partialName, string fieldName)
 {
     foreach (PdfInteractiveFormField field in fields)
     {
         if (partialName + field.Name == fieldName)
         {
             if (field.Flags.HasFlag(PdfInteractiveFormFieldFlags.Radio))
             {
                 return(field as PdfButtonFormField);
             }
             return(null);
         }
         if (field.Kids != null)
         {
             PdfInteractiveFormField intermediateResult = FindRadioButton(field.Kids, partialName + "." + field.Name, fieldName);
             if (intermediateResult != null)
             {
                 return(intermediateResult);
             }
         }
     }
     return(null);
 }