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

        public bool SetField(String name, String value, String display) {
            if (writer == null)
                throw new DocumentException("This AcroFields instance is read-only.");
            if (xfa.XfaPresent) {
                name = xfa.FindFieldName(name, this);
                if (name == null)
                    return false;
                String shortName = XfaForm.Xml2Som.GetShortName(name);
                XmlNode xn = xfa.FindDatasetsNode(shortName);
                if (xn == null) {
                    xn = xfa.DatasetsSom.InsertNode(xfa.DatasetsNode, shortName);
                }
                xfa.SetNodeText(xn, value);
            }
            Item item = (Item)fields[name];
            if (item == null)
                return false;
            PdfDictionary merged = item.GetMerged( 0 );
            PdfName type = merged.GetAsName(PdfName.FT);
            if (PdfName.TX.Equals(type)) {
                PdfNumber maxLen = merged.GetAsNumber(PdfName.MAXLEN);
                int len = 0;
                if (maxLen != null)
                    len = maxLen.IntValue;
                if (len > 0)
                    value = value.Substring(0, Math.Min(len, value.Length));
            }
            if (display == null)
                display = value;
            if (PdfName.TX.Equals(type) || PdfName.CH.Equals(type)) {
                PdfString v = new PdfString(value, PdfObject.TEXT_UNICODE);
                for (int idx = 0; idx < item.Size; ++idx) {
                    PdfDictionary valueDic = item.GetValue(idx);
                    valueDic.Put(PdfName.V, v);
                    valueDic.Remove(PdfName.I);
                    MarkUsed(valueDic);                
                    merged = item.GetMerged(idx);
                    merged.Remove(PdfName.I);
                    merged.Put(PdfName.V, v);
                    PdfDictionary widget = item.GetWidget(idx);
                    if (generateAppearances) {
                        PdfAppearance app = GetAppearance(merged, display, name);
                        if (PdfName.CH.Equals(type)) {
                            PdfNumber n = new PdfNumber(topFirst);
                            widget.Put(PdfName.TI, n);
                            merged.Put(PdfName.TI, n);
                        }
                        PdfDictionary appDic = widget.GetAsDict(PdfName.AP);
                        if (appDic == null) {
                            appDic = new PdfDictionary();
                            widget.Put(PdfName.AP, appDic);
                            merged.Put(PdfName.AP, appDic);
                        }
                        appDic.Put(PdfName.N, app.IndirectReference);
                        writer.ReleaseTemplate(app);
                    }
                    else {
                        widget.Remove(PdfName.AP);
                        merged.Remove(PdfName.AP);
                    }
                    MarkUsed(widget);
                }
                return true;
            }
            else if (PdfName.BTN.Equals(type)) {
                PdfNumber ff = item.GetMerged(0).GetAsNumber(PdfName.FF);
                int flags = 0;
                if (ff != null)
                    flags = ff.IntValue;
                if ((flags & PdfFormField.FF_PUSHBUTTON) != 0) {
                    //we'll assume that the value is an image in base64
                    Image img;
                    try {
                        img = Image.GetInstance(Convert.FromBase64String(value));
                    }
                    catch {
                        return false;
                    }
                    PushbuttonField pb = GetNewPushbuttonFromField(name);
                    pb.Image = img;
                    ReplacePushbuttonField(name, pb.Field);
                    return true;
                }
                PdfName v = new PdfName(value);
                ArrayList lopt = new ArrayList();
                PdfArray opts = item.GetValue(0).GetAsArray(PdfName.OPT);
                if (opts != null) {
                    for (int k = 0; k < opts.Size; ++k) {
                        PdfString valStr = opts.GetAsString(k);
                        if (valStr != null)
                            lopt.Add(valStr.ToUnicodeString());
                        else
                            lopt.Add(null);
                    }
                }
                int vidx = lopt.IndexOf(value);
                PdfName valt = null;
                PdfName vt;
                if (vidx >= 0) {
                    vt = valt = new PdfName(vidx.ToString());
                }
                else
                    vt = v;
                for (int idx = 0; idx < item.Size; ++idx) {
                    merged = item.GetMerged(idx);
                    PdfDictionary widget = item.GetWidget(idx);
                    PdfDictionary valDict = item.GetValue(idx);
                    MarkUsed(item.GetValue(idx));
                    if (valt != null) {
                        PdfString ps = new PdfString(value, PdfObject.TEXT_UNICODE);
                        valDict.Put(PdfName.V, ps);
                        merged.Put(PdfName.V, ps);
                    }
                    else {
                        valDict.Put(PdfName.V, v);
                        merged.Put(PdfName.V, v);
                    }
                    MarkUsed(widget);
                    if (IsInAP(widget,  vt)) {
                        merged.Put(PdfName.AS, vt);
                        widget.Put(PdfName.AS, vt);
                    }
                    else {
                        merged.Put(PdfName.AS, PdfName.Off_);
                        widget.Put(PdfName.AS, PdfName.Off_);
                    }
                }
                return true;
            }
            return false;
        }
        

// ---------------------------------------------------------------------------    
    /**
     * Fill out the fields using info from a Movie object.
     * @param form The form object
     * @param movie A movie POJO
     */
    public static void Fill(AcroFields form, Movie movie) {
      form.SetField("title", movie.MovieTitle);
      form.SetField("director", GetDirectors(movie));
      form.SetField("year", movie.Year.ToString());
      form.SetField("duration", movie.Duration.ToString());
      form.SetField("category", movie.entry.category.Keyword);
      foreach (Screening screening in movie.entry.Screenings) {
        form.SetField(screening.Location.Replace('.', '_'), "Yes");
      }
    }