Novacode.DocX.AddStylesForList C# (CSharp) Method

        internal XDocument AddStylesForList()
        {
            var wordStylesUri = new Uri("/word/styles.xml", UriKind.Relative);

            // If the internal document contains no /word/styles.xml create one.
            if (!package.PartExists(wordStylesUri))
                HelperFunctions.AddDefaultStylesXml(package);

            // Load the styles.xml into memory.
            XDocument wordStyles;
            using (TextReader tr = new StreamReader(package.GetPart(wordStylesUri).GetStream()))
                wordStyles = XDocument.Load(tr);

            bool listStyleExists =
            (
              from s in wordStyles.Element(w + "styles").Elements()
              let styleId = s.Attribute(XName.Get("styleId", w.NamespaceName))
              where (styleId != null && styleId.Value == "ListParagraph")
              select s
            ).Any();

            if (!listStyleExists)
            {
                var style = new XElement
                (
                    w + "style",
                    new XAttribute(w + "type", "paragraph"),
                    new XAttribute(w + "styleId", "ListParagraph"),
                        new XElement(w + "name", new XAttribute(w + "val", "List Paragraph")),
                        new XElement(w + "basedOn", new XAttribute(w + "val", "Normal")),
                        new XElement(w + "uiPriority", new XAttribute(w + "val", "34")),
                        new XElement(w + "qformat"),
                        new XElement(w + "rsid", new XAttribute(w + "val", "00832EE1")),
                        new XElement
                        (
                            w + "rPr",
                            new XElement(w + "ind", new XAttribute(w + "left", "720")),
                            new XElement
                            (
                                w + "contextualSpacing"
                            )
                        )
                );
                wordStyles.Element(w + "styles").Add(style);

                // Save the styles document.
                using (TextWriter tw = new StreamWriter(new PackagePartStream(package.GetPart(wordStylesUri).GetStream())))
                    wordStyles.Save(tw);
            }

            return wordStyles;
        }