XContainer.CreateWriter Method

Creates an XmlWriter that can be used to add nodes to the XContainer.

Namespace:  System.Xml.Linq
Assemblies:   System.Xml.Linq (in System.Xml.Linq.dll)
  System.Xml.XDocument (in System.Xml.XDocument.dll)

public XmlWriter CreateWriter()

Return Value

Type: System.Xml.XmlWriter
An XmlWriter that is ready to have content written to it.

While serializing, namespace prefixes are inferred from the namespace attributes in the XML tree.

For more information, see Working with XML Namespaces.

You can use this method to perform an XSLT transformation. You can create an XML tree, create an XmlReader from the XML tree, create a new document, and create a XmlWriter that will write into the new document. Then, you can invoke the XSLT transformation, passing the XmlReader and XmlWriter to the transform. After the transformation successfully completes, the new XML tree is populated with the results of the transformation.

string xslMarkup = @"<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl='http://www.w3.org/1999/XSL/Transform' version='1.0'>
    <xsl:template match='/Parent'>
        <Root>
            <C1><xsl:value-of select='Child1'/></C1>
            <C2><xsl:value-of select='Child2'/></C2>
        </Root>
    </xsl:template>
</xsl:stylesheet>";

XDocument xmlTree = new XDocument(
    new XElement("Parent",
        new XElement("Child1", "Child1 data"),
        new XElement("Child2", "Child2 data")
    )
);

XDocument newTree = new XDocument();
using (XmlWriter writer = newTree.CreateWriter()) {
    // Load the style sheet.
    XslCompiledTransform xslt = new XslCompiledTransform();
    xslt.Load(XmlReader.Create(new StringReader(xslMarkup)));

    // Execute the transform and output the results to a writer.
    xslt.Transform(xmlTree.CreateReader(), writer);
}

Console.WriteLine(newTree);

This example produces the following output:

<Root>
  <C1>Child1 data</C1>
  <C2>Child2 data</C2>
</Root>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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