XslTransform doesn't write Xml Declaration with XmlDocument
Took quite some time to find out, but it seems as though the System.Xml.Xsl.XslTransform.Transform method does not write the Xml Declaration when you pass it a System.Xml.XmlDocument. Given the following Xml input (simple.xml):
<
root>SomeData<root>And this xsl stylesheet (simple.xslt):
<
xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" /> According to this article the result should include the Xml Declaration by default.I tested using this code:
System.Xml.Xsl.XslTransform xslt = new System.Xml.Xsl.XslTransform();
xslt.Load("c:\\simple.xslt");
XmlDocument xml = new XmlDocument();
xml.Load("c:\\simple.xml");
System.IO.Stream stream = new System.IO.MemoryStream();
XmlWriter xw = new System.Xml.XmlTextWriter(stream, System.Text.Encoding.UTF8);
xslt.Transform(xml, null, xw);
The XmlWriter contains only "SomeData" when this code has executed. If I use a XPathDocument instead of the XmlDocument though:
System.Xml.Xsl.XslTransform xslt = new System.Xml.Xsl.XslTransform();
xslt.Load("c:\\simple.xslt");
System.Xml.XPath.XPathDocument xml = new System.Xml.XPath.XPathDocument("c:\\simple.xml");
System.IO.Stream stream = new System.IO.MemoryStream();
xslt.Transform(xml, null, stream);
Then the output is as following:
<xml version="1.0" encoding="utf-8"?>SomeData
Anybody know why?