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PO.NET XML: What is the .NET equivalent of XmlDocument.TransformNode?
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copied!<p>In native programming the IXMLDOMDocument2 object had a <a href="http://msdn.microsoft.com/en-us/library/ms896487.aspx" rel="nofollow noreferrer"><code>tranformNode()</code></a> method:</p> <pre><code>public BSTR transformNode(IXMLDOMNode stylesheet); </code></pre> <p>So in the end I could transform an XML document using:</p> <pre><code>public string TransformDocument(IXMLDOMDocument2 doc, IXMLDOMDocument2 stylesheet) { return doc.TransformNode(stylesheet); } </code></pre> <p>I'm trying to find the managed equivalent. I've already discovered <a href="http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx" rel="nofollow noreferrer">XmlDocument</a> object:</p> <pre><code>public string TransformDocument(XmlDocument doc, XmlDocument stylesheet) { //return doc.TransformNode(stylesheet); //TransformNode not supported } </code></pre> <p>So what is the managed way to transform xml?</p> <p>I've stumbled across the <strong>deprecated</strong> <a href="http://msdn.microsoft.com/en-us/library/system.xml.xsl.xsltransform.aspx" rel="nofollow noreferrer">XslTransform</a> object, but none of the 18 overloads takes an xml document, or an xml stylesheet.</p> <p>The replacement Microsoft indicates is the mouthful: <a href="http://msdn.microsoft.com/en-us/library/system.xml.xsl.xslcompiledtransform.aspx" rel="nofollow noreferrer">System.Xml.Xsl.XslCompiledTransform</a>. But like it's deprecated cousin, none of XslCompiledTransform's 14 overloads takes xml in an input parameter.</p> <p>So what's the accepted method to transform xml in C# .NET 2.0?</p> <p>Put it another way: complete the following helper method:</p> <pre><code>public string TransformDocument(XmlDocument doc, XmlDocument stylesheet) { //todo: figure out how to transform xml in C# } </code></pre> <hr> <h2>Answer</h2> <p><a href="https://stackoverflow.com/questions/470286/-net-xml-what-is-the-net-equivalent-of-xmldocument-transformnode#470405">Waqas</a> had the answer. Here is another, very similar, solution:</p> <pre><code>/// <summary> /// This method simulates the XMLDOMDocument.TransformNode method /// </summary> /// <param name="doc">XML document to be transformed</param> /// <param name="stylesheet">The stylesheet to transform with</param> /// <returns></returns> public static string Transform(XmlDocument doc, XmlDocument stylesheet) { XslCompiledTransform transform = new XslCompiledTransform(); transform.Load(stylesheet); // compiled stylesheet System.IO.StringWriter writer = new System.IO.StringWriter(); transform.Transform(doc, XmlWriter.Create(writer)); return writer.ToString(); } </code></pre> <p><strong>Note:</strong> If you're a performance weenie, you might want to create an overload to pass the pre-compiled transform, if you're going to transforming more than once.</p> <pre><code>public static string Transform(XmlDocument doc, XslCompiledTransform stylesheet) { ... } </code></pre>

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