//// This code is part of Document Solutions for Word demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using System.Collections.Generic;using System.Linq;using System.Globalization;using GrapeCity.Documents.Word;using GrapeCity.Documents.Word.Fields;
namespace DsWordWeb.Demos{    // This sample shows how to add an RD field to a Word document,    // and specify its options.    public class RdFieldOpts    {        public GcWordDocument CreateDocx()        {            // Create a few sub-documents to be referenced in the main document:            const int SubDocCount = 3;            var tFnames = new List<string>();            for (int i = 1; i <= SubDocCount; i++)            {                var subDoc = new GcWordDocument();
                // Set the starting page number for each sub-document:                subDoc.Body.Sections.First.PageSetup.PageNumbering.StartingNumber = i + 1;
                // Add a heading to be referenced in the main document's TOC:                subDoc.Body.AddParagraph($"Heading from sub-document {i}.", subDoc.Styles[BuiltInStyleId.Heading1]);
                // Add a table of authorities entry to be referenced in the main document:                var ta = new TaFieldOptions(subDoc);                ta.Category = 1;                ta.LongCitation.Text = $"Table of authorities entry from sub-document {i}.";                var p = subDoc.Body.AddParagraph();                p.AddComplexField(ta);                p.AddRun($"Table of authorities entry from sub-document {i}.");
                // Add an index entry to be referenced in the main document:                var xe = new XeFieldOptions(subDoc);                xe.Entry.Content.Text = $"Index entry from sub-document {i}";                p = subDoc.Body.AddParagraph();                p.AddComplexField(xe);                p.AddRun($"Index entry from sub-document {i}.");
                tFnames.Add(Path.GetTempFileName());                subDoc.Save(tFnames.Last());            }
            // Create the main document to store TOC, TOA an index information from sub documents:            var doc = new GcWordDocument();
            // Create the TOC field:            var toc = new TocFieldOptions(doc);            var h = doc.Body.AddParagraph("Table of Contents", doc.Styles[BuiltInStyleId.Title]);            h.AddComplexField(toc);
            // Create the TOA field:            var toa = new ToaFieldOptions(doc);            doc.Body.AddParagraph("Table of Authorities", doc.Styles[BuiltInStyleId.Title]);            h = doc.Body.AddParagraph(doc.Styles[BuiltInStyleId.Title]);            h.AddComplexField(toa);
            // Create the INDEX field:            var index = new IndexFieldOptions(doc);            index.PageNumbers.Separator = "\t";            h = doc.Body.AddParagraph("Index", doc.Styles[BuiltInStyleId.Title]);            h.AddComplexField(index);
            // Add RD fields to the main document referencing the sub-documents:            for (int i = 1; i <= SubDocCount; i++)            {                var rd = new RdFieldOptions(doc)                {                    FilePath = ToUri(tFnames[i - 1]).ToString(),                    Relative = false                };                h = doc.Body.AddParagraph();                h.AddComplexField(rd);            }
            // Update all fields in the main document that collects TOC, TOA and index entries from sub documents,            // using a specific culture:            doc.UpdateFields(new GrapeCity.Documents.Word.Layout.WordLayoutSettings() { FontCollection = Util.FontCollection, Culture = CultureInfo.GetCultureInfo("en-US") });
            // As this is a demo, clean up temporary sub-document files:            tFnames.ForEach(f => File.Delete(f));            return doc;        }
        static Uri ToUri(string pathOrUrl)        {            // If it's already an absolute URI (http, https, ftp, file, etc.):            if (Uri.TryCreate(pathOrUrl, UriKind.Absolute, out var existing))            {                return existing;            }            // Otherwise treat it as a file path:            return new Uri(Path.GetFullPath(pathOrUrl));        }    }}