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XslTransform.Transform Method (XPathNavigator, XsltArgumentList, TextWriter, XmlResolver)

Transforms the XML data in the XPathNavigator using the specified args and outputs the result to a TextWriter.

Namespace:  System.Xml.Xsl
Assembly:  System.Xml (in System.Xml.dll)

public void Transform(
	XPathNavigator input,
	XsltArgumentList args,
	TextWriter output,
	XmlResolver resolver
)

Parameters

input
Type: System.Xml.XPath.XPathNavigator

An XPathNavigator containing the data to be transformed.

args
Type: System.Xml.Xsl.XsltArgumentList

An XsltArgumentList containing the namespace-qualified arguments used as input to the transformation.

output
Type: System.IO.TextWriter

The TextWriter to which you want to output.

resolver
Type: System.Xml.XmlResolver

The XmlResolver used to resolve the XSLT document() function. If this is null, the document() function is not resolved.

The XmlResolver is not cached after the Transform method completes.

ExceptionCondition
InvalidOperationException

There was an error processing the XSLT transformation.

Note: This is a change in behavior from earlier versions. An XsltException is thrown if you are using Microsoft .NET Framework version 1.1 or earlier.

NoteNote

The XslTransform class is obsolete in the .NET Framework version 2.0. The XslCompiledTransform class is the new XSLT processor. For more information, see Using the XslCompiledTransform Class and Migrating From the XslTransform Class.

XslTransform supports the XSLT 1.0 syntax. The XSLT style sheet must include the namespace declaration xmlns:xsl= http://www.w3.org/1999/XSL/Transform.

The args are matched with the xsl:param elements defined in the style sheet. The transformation selections apply to the document as a whole. In other words, if the current node is set on a node tree other than the document root node, this does not prevent the transformation process from accessing all nodes in the loaded document. After the transformation is performed, the XPathNavigator remains in its original state. This means that the node, which is current before the transformation process, remains the current node after the Transform method has been called.

The encoding attribute on an xsl:output element is not supported when outputting to a TextWriter. See Outputs from an XslTransform for specifics on which xsl:output attributes are supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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