Force XDocument to write to String with UTF-8 encoding
Try this:
using System;using System.IO;using System.Text;using System.Xml.Linq;class Test{ static void Main() { XDocument doc = XDocument.Load("test.xml", LoadOptions.PreserveWhitespace); doc.Declaration = new XDeclaration("1.0", "utf-8", null); StringWriter writer = new Utf8StringWriter(); doc.Save(writer, SaveOptions.None); Console.WriteLine(writer); } private class Utf8StringWriter : StringWriter { public override Encoding Encoding { get { return Encoding.UTF8; } } }}Of course, you haven't shown us how you're building the document, which makes it hard to test... I've just tried with a hand-constructed XDocument and that contains the relevant whitespace too.
Try XmlWriterSettings:
XmlWriterSettings xws = new XmlWriterSettings();xws.OmitXmlDeclaration = false;xws.Indent = true;And pass it on like
using (XmlWriter xw = XmlWriter.Create(sb, xws))
See also https://stackoverflow.com/a/3288376/1430535
return xdoc.Declaration.ToString() + Environment.NewLine + xdoc.ToString();