//// This code is part of Document Solutions for Word demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.Globalization;using GrapeCity.Documents.Word;using GrapeCity.Documents.Word.Fields;using GrapeCity.Documents.Word.Layout;
namespace DsWordWeb.Demos{    // This sample shows how to use the INDEX and XE field options    // to add an index to a DOCX Word document.    public class IndexFieldOpts    {        // For this demo, we arbitrarily pick some of the 'lorem ipsum' words to include in the index:        private static string[] s_indexWords =        {            "lorem", "ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing", "elit", "mauris", "id", "volutpat",            "tellus", "ullamcorper", "sem", "praesent", "et", "ante", "laoreet", "lobortis", "nunc", "congue",        };
        public GcWordDocument CreateDocx()        {            var doc = new GcWordDocument();
            // Arbitrary number of sample paragraphs in the document:            const int NPARS = 30;            // We add some random "lorem ipsum" paragraphs to the document,            // and build the index on the arbitrarily chosen subset of words,            // including pages where the indexed word appears as the first            // word in a paragraph:            for (int i = 0; i < NPARS; ++i)            {                var par = doc.Body.Paragraphs.Add();                var txt = Util.LoremIpsumPar();
                var words = txt.Split([' ', ',', '.'], 2);                if (words.Length != 2)                    throw new Exception("Unexpected");
                var word = words[0];                var xe = new XeFieldOptions(doc);                xe.Entry.Content.Text = word;                par.AddComplexField(xe);                par.AddRun(txt);            }            // Add new section for the index:            doc.Body.Paragraphs.Last.AddSectionBreak();            var p = doc.Body.Paragraphs.Add(doc.Styles[BuiltInStyleId.Index1]);            // Set up INDEX field options:            var index = new IndexFieldOptions(doc);            // Two column layout:            index.Columns = 2;            // Use headings for index entries:            index.Heading = "A";            // Set any additional options as needed,            // then create the INDEX field with the specified options:            ComplexField field = p.AddComplexField(index);
            // Update the index field using a specific culture:            field.Update(new WordLayoutSettings() { FontCollection = Util.FontCollection, Culture = CultureInfo.GetCultureInfo("en-US") });
            // Done:            return doc;        }    }}