XmlDsigXsltTransform Clase

Referencia

Definición

Espacio de nombres:: System.Security.Cryptography.Xml

Ensamblado:: System.Security.Cryptography.Xml.dll

Ensamblado:: System.Security.dll

Paquete:: System.Security.Cryptography.Xml v6.0.0

Paquete:: System.Security.Cryptography.Xml v7.0.0

Paquete:: System.Security.Cryptography.Xml v8.0.0

Paquete:: System.Security.Cryptography.Xml v9.0.0-preview.2.24128.5

Source:: XmlDsigXsltTransform.cs

Source:: XmlDsigXsltTransform.cs

Source:: XmlDsigXsltTransform.cs

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Representa la transformación XSLT para una firma digital que define W3C.

public ref class XmlDsigXsltTransform : System::Security::Cryptography::Xml::Transform

public class XmlDsigXsltTransform : System.Security.Cryptography.Xml.Transform

type XmlDsigXsltTransform = class
    inherit Transform

Public Class XmlDsigXsltTransform
Inherits Transform

Herencia: Object

Transform
XmlDsigXsltTransform

Ejemplos

Esta sección contiene dos ejemplos de código. En el primer ejemplo de código se muestra cómo firmar y comprobar un documento XML mediante la clase con una firma de XmlDsigXsltTransform sobre. En el segundo ejemplo de código se muestra cómo usar miembros de la XmlDsigXsltTransform clase .

Ejemplo 1

//
// This example signs an XML file using an
// envelope signature. It then verifies the 
// signed XML.
//
#using <System.Xml.dll>
#using <System.Security.dll>
#using <System.dll>

using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::X509Certificates;
using namespace System::Security::Cryptography::Xml;
using namespace System::Text;
using namespace System::Xml;

// Create the XML that represents the transform.
static XmlDsigXsltTransform^ CreateXsltTransform( String^ xsl )
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( xsl );
   XmlDsigXsltTransform^ xform = gcnew XmlDsigXsltTransform;
   xform->LoadInnerXml( doc->ChildNodes );
   return xform;
}


// Sign an XML file and save the signature in a new file.
static void SignXmlFile( String^ FileName, String^ SignedFileName, RSA^ Key, String^ XSLString )
{
   
   // Create a new XML document.
   XmlDocument^ doc = gcnew XmlDocument;
   
   // Format the document to ignore white spaces.
   doc->PreserveWhitespace = false;
   
   // Load the passed XML file using it's name.
   doc->Load( gcnew XmlTextReader( FileName ) );
   
   // Create a SignedXml object.
   SignedXml^ signedXml = gcnew SignedXml( doc );
   
   // Add the key to the SignedXml document. 
   signedXml->SigningKey = Key;
   
   // Create a reference to be signed.
   Reference^ reference = gcnew Reference;
   reference->Uri = L"";
   
   // Add an enveloped transformation to the reference.
   XmlDsigEnvelopedSignatureTransform^ env = gcnew XmlDsigEnvelopedSignatureTransform;
   reference->AddTransform( env );
   
   // Create an XmlDsigXPathTransform object using 
   // the helper method 'CreateXPathTransform' defined
   // later in this sample.
   XmlDsigXsltTransform^ XsltTransform = CreateXsltTransform( XSLString );
   
   // Add the transform to the reference.
   reference->AddTransform( XsltTransform );
   
   // Add the reference to the SignedXml object.
   signedXml->AddReference( reference );
   
   // Add an RSAKeyValue KeyInfo (optional; helps recipient find key to validate).
   KeyInfo^ keyInfo = gcnew KeyInfo;
   keyInfo->AddClause( gcnew RSAKeyValue( dynamic_cast<RSA^>(Key) ) );
   signedXml->KeyInfo = keyInfo;
   
   // Compute the signature.
   signedXml->ComputeSignature();
   
   // Get the XML representation of the signature and save
   // it to an XmlElement object.
   XmlElement^ xmlDigitalSignature = signedXml->GetXml();
   
   // Append the element to the XML document.
   doc->DocumentElement->AppendChild( doc->ImportNode( xmlDigitalSignature, true ) );
   
   // Save the signed XML document to a file specified
   // using the passed string.
   XmlTextWriter^ xmltw = gcnew XmlTextWriter( SignedFileName,gcnew UTF8Encoding( false ) );
   doc->WriteTo( xmltw );
   xmltw->Close();
}


// Verify the signature of an XML file and return the result.
static Boolean VerifyXmlFile( String^ Name )
{
   
   // Create a new XML document.
   XmlDocument^ xmlDocument = gcnew XmlDocument;
   
   // Format using white spaces.
   xmlDocument->PreserveWhitespace = true;
   
   // Load the passed XML file into the document. 
   xmlDocument->Load( Name );
   
   // Create a new SignedXml object and pass it
   // the XML document class.
   SignedXml^ signedXml = gcnew SignedXml( xmlDocument );
   
   // Find the "Signature" node and create a new
   // XmlNodeList object.
   XmlNodeList^ nodeList = xmlDocument->GetElementsByTagName( L"Signature" );
   
   // Load the signature node.
   signedXml->LoadXml( dynamic_cast<XmlElement^>(nodeList->Item( 0 )) );
   
   // Check the signature and return the result.
   return signedXml->CheckSignature();
}


// Create example data to sign.
static void CreateSomeXml( String^ FileName )
{
   
   // Create a new XmlDocument object.
   XmlDocument^ document = gcnew XmlDocument;
   
   // Create a new XmlNode object.
   XmlNode^ node = document->CreateNode( XmlNodeType::Element, L"", L"MyXML", L"Don't_Sign" );
   
   // Append the node to the document.
   document->AppendChild( node );
   
   // Create a new XmlNode object.
   XmlNode^ subnode = document->CreateNode( XmlNodeType::Element, L"", L"ElementToTransform", L"Sign" );
   
   // Add some text to the node.
   subnode->InnerText = L"Here is some data to sign.";
   
   // Append the node to the document.
   document->DocumentElement->AppendChild( subnode );
   
   // Save the XML document to the file name specified.
   XmlTextWriter^ xmltw = gcnew XmlTextWriter( FileName,gcnew UTF8Encoding( false ) );
   document->WriteTo( xmltw );
   xmltw->Close();
}

int main()
{
   
   // Generate a signing key.
   RSA^ Key = RSA::Create();
   String^ xsl = L"\r\n    <xs:transform xmlns:xs='http://www.w3.org/1999/XSL/Transform' version='1.0'>\r\n        <xs:template match='/'>\r\n            <xs:apply-templates/>\r\n        </xs:template>\r\n        <xs:template match='ElementToTransform'> \r\n            <transformedElement/>\r\n        </xs:template>\r\n    </xs:transform>";
   try
   {
      
      // Create an XML file to sign.
      CreateSomeXml( L"Example.xml" );
      Console::WriteLine( L"New XML file created." );
      
      // Sign the XML that was just created and save it in a 
      // new file.
      SignXmlFile( L"Example.xml", L"SignedExample.xml", Key, xsl );
      Console::WriteLine( L"XML file signed." );
      
      // Verify the signature of the signed XML.
      Console::WriteLine( L"Verifying signature..." );
      bool result = VerifyXmlFile( L"SignedExample.xml" );
      
      // Display the results of the signature verification to \
      // the console.
      if ( result )
      {
         Console::WriteLine( L"The XML signature is valid." );
      }
      else
      {
         Console::WriteLine( L"The XML signature is not valid." );
      }
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }
   finally
   {
      Key->Clear();
   }

   return 1;
}

//
// This example signs an XML file using an
// envelope signature. It then verifies the
// signed XML.
//
using System;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Security.Cryptography.Xml;
using System.Text;
using System.Xml;

public class SignVerifyEnvelope
{

    public static void Main(String[] args)
    {
        // Generate a signing key.
        RSA Key = RSA.Create();

        string xsl = @"
    <xs:transform xmlns:xs='http://www.w3.org/1999/XSL/Transform' version='1.0'>
        <xs:template match='/'>
            <xs:apply-templates/>
        </xs:template>
        <xs:template match='ElementToTransform'>
            <transformedElement/>
        </xs:template>
    </xs:transform>";

        try
        {
            // Create an XML file to sign.
            CreateSomeXml("Example.xml");
            Console.WriteLine("New XML file created.");

            // Sign the XML that was just created and save it in a
            // new file.
            SignXmlFile("Example.xml", "SignedExample.xml", Key, xsl);
            Console.WriteLine("XML file signed.");

            // Verify the signature of the signed XML.
            Console.WriteLine("Verifying signature...");
            bool result = VerifyXmlFile("SignedExample.xml");

            // Display the results of the signature verification to \
            // the console.
            if (result)
            {
                Console.WriteLine("The XML signature is valid.");
            }
            else
            {
                Console.WriteLine("The XML signature is not valid.");
            }
        }
        catch (CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
        finally
        {
            Key.Clear();
        }
    }

    // Sign an XML file and save the signature in a new file.
    public static void SignXmlFile(string FileName, string SignedFileName, RSA Key, string XSLString)
    {
        // Create a new XML document.
        XmlDocument doc = new XmlDocument();

        // Format the document to ignore white spaces.
        doc.PreserveWhitespace = false;

        // Load the passed XML file using it's name.
        doc.Load(new XmlTextReader(FileName));

        // Create a SignedXml object.
        SignedXml signedXml = new SignedXml(doc);

        // Add the key to the SignedXml document.
        signedXml.SigningKey = Key;

        // Create a reference to be signed.
        Reference reference = new Reference();
        reference.Uri = "";

        // Add an enveloped transformation to the reference.
        XmlDsigEnvelopedSignatureTransform env = new XmlDsigEnvelopedSignatureTransform();
        reference.AddTransform(env);

        // Create an XmlDsigXPathTransform object using
        // the helper method 'CreateXPathTransform' defined
        // later in this sample.

        XmlDsigXsltTransform XsltTransform = CreateXsltTransform(XSLString);

        // Add the transform to the reference.
        reference.AddTransform(XsltTransform);

        // Add the reference to the SignedXml object.
        signedXml.AddReference(reference);

        // Add an RSAKeyValue KeyInfo (optional; helps recipient find key to validate).
        KeyInfo keyInfo = new KeyInfo();
        keyInfo.AddClause(new RSAKeyValue((RSA)Key));
        signedXml.KeyInfo = keyInfo;

        // Compute the signature.
        signedXml.ComputeSignature();

        // Get the XML representation of the signature and save
        // it to an XmlElement object.
        XmlElement xmlDigitalSignature = signedXml.GetXml();

        // Append the element to the XML document.
        doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, true));

        // Save the signed XML document to a file specified
        // using the passed string.
        XmlTextWriter xmltw = new XmlTextWriter(SignedFileName, new UTF8Encoding(false));
        doc.WriteTo(xmltw);
        xmltw.Close();
    }
    // Verify the signature of an XML file and return the result.
    public static Boolean VerifyXmlFile(String Name)
    {
        // Create a new XML document.
        XmlDocument xmlDocument = new XmlDocument();

        // Format using white spaces.
        xmlDocument.PreserveWhitespace = true;

        // Load the passed XML file into the document.
        xmlDocument.Load(Name);

        // Create a new SignedXml object and pass it
        // the XML document class.
        SignedXml signedXml = new SignedXml(xmlDocument);

        // Find the "Signature" node and create a new
        // XmlNodeList object.
        XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");

        // Load the signature node.
        signedXml.LoadXml((XmlElement)nodeList[0]);

        // Check the signature and return the result.
        return signedXml.CheckSignature();
    }

    // Create the XML that represents the transform.
    public static XmlDsigXsltTransform CreateXsltTransform(string xsl)
    {
        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xsl);

        XmlDsigXsltTransform xform = new XmlDsigXsltTransform();
        xform.LoadInnerXml(doc.ChildNodes);

        return xform;
    }

    // Create example data to sign.
    public static void CreateSomeXml(string FileName)
    {
        // Create a new XmlDocument object.
        XmlDocument document = new XmlDocument();

        // Create a new XmlNode object.
        XmlNode node = document.CreateNode(XmlNodeType.Element, "", "MyXML", "Don't_Sign");

        // Append the node to the document.
        document.AppendChild(node);

        // Create a new XmlNode object.
        XmlNode subnode = document.CreateNode(XmlNodeType.Element, "", "ElementToTransform", "Sign");

        // Add some text to the node.
        subnode.InnerText = "Here is some data to sign.";

        // Append the node to the document.
        document.DocumentElement.AppendChild(subnode);

        // Save the XML document to the file name specified.
        XmlTextWriter xmltw = new XmlTextWriter(FileName, new UTF8Encoding(false));
        document.WriteTo(xmltw);
        xmltw.Close();
    }
}

'
' This example signs an XML file using an
' envelope signature. It then verifies the 
' signed XML.
'
Imports System.Security.Cryptography
Imports System.Security.Cryptography.X509Certificates
Imports System.Security.Cryptography.Xml
Imports System.Text
Imports System.Xml



Module SignVerifyEnvelope


    Sub Main(ByVal args() As String)
        ' Generate a signing key.
        Dim Key As RSA = RSA.Create()

        Dim xsl As String = "<xs:transform xmlns:xs='http://www.w3.org/1999/XSL/Transform' version='1.0'> <xs:template match='/'> <xs:apply-templates/> </xs:template> <xs:template match='ElementToTransform'> <transformedElement/> </xs:template> </xs:transform>"

        Try
            ' Create an XML file to sign.
            CreateSomeXml("Example.xml")
            Console.WriteLine("New XML file created.")

            ' Sign the XML that was just created and save it in a 
            ' new file.
            SignXmlFile("Example.xml", "SignedExample.xml", Key, xsl)
            Console.WriteLine("XML file signed.")

            ' Verify the signature of the signed XML.
            Console.WriteLine("Verifying signature...")
            Dim result As Boolean = VerifyXmlFile("SignedExample.xml")

            ' Display the results of the signature verification to \
            ' the console.
            If result Then
                Console.WriteLine("The XML signature is valid.")
            Else
                Console.WriteLine("The XML signature is not valid.")
            End If
        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        Finally
            Key.Clear()
        End Try

    End Sub


    ' Sign an XML file and save the signature in a new file.
    Sub SignXmlFile(ByVal FileName As String, ByVal SignedFileName As String, ByVal Key As RSA, ByVal XSLString As String)
        ' Create a new XML document.
        Dim doc As New XmlDocument()

        ' Format the document to ignore white spaces.
        doc.PreserveWhitespace = False

        ' Load the passed XML file using it's name.
        doc.Load(New XmlTextReader(FileName))

        ' Create a SignedXml object.
        Dim signedXml As New SignedXml(doc)

        ' Add the key to the SignedXml document. 
        signedXml.SigningKey = Key

        ' Create a reference to be signed.
        Dim reference As New Reference()
        reference.Uri = ""

        ' Add an enveloped transformation to the reference.
        Dim env As New XmlDsigEnvelopedSignatureTransform()
        reference.AddTransform(env)

        ' Create an XmlDsigXPathTransform object using 
        ' the helper method 'CreateXPathTransform' defined
        ' later in this sample.
        Dim XsltTransform As XmlDsigXsltTransform = CreateXsltTransform(XSLString)

        ' Add the transform to the reference.
        reference.AddTransform(XsltTransform)

        ' Add the reference to the SignedXml object.
        signedXml.AddReference(reference)

        ' Add an RSAKeyValue KeyInfo (optional; helps recipient find key to validate).
        Dim keyInfo As New KeyInfo()
        keyInfo.AddClause(New RSAKeyValue(CType(Key, RSA)))
        signedXml.KeyInfo = keyInfo

        ' Compute the signature.
        signedXml.ComputeSignature()

        ' Get the XML representation of the signature and save
        ' it to an XmlElement object.
        Dim xmlDigitalSignature As XmlElement = signedXml.GetXml()

        ' Append the element to the XML document.
        doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, True))

        ' Save the signed XML document to a file specified
        ' using the passed string.
        Dim xmltw As New XmlTextWriter(SignedFileName, New UTF8Encoding(False))
        doc.WriteTo(xmltw)
        xmltw.Close()

    End Sub

    ' Verify the signature of an XML file and return the result.
    Function VerifyXmlFile(ByVal Name As String) As [Boolean]
        ' Create a new XML document.
        Dim xmlDocument As New XmlDocument()

        ' Format using white spaces.
        xmlDocument.PreserveWhitespace = True

        ' Load the passed XML file into the document. 
        xmlDocument.Load(Name)

        ' Create a new SignedXml object and pass it
        ' the XML document class.
        Dim signedXml As New SignedXml(xmlDocument)

        ' Find the "Signature" node and create a new
        ' XmlNodeList object.
        Dim nodeList As XmlNodeList = xmlDocument.GetElementsByTagName("Signature")

        ' Load the signature node.
        signedXml.LoadXml(CType(nodeList(0), XmlElement))

        ' Check the signature and return the result.
        Return signedXml.CheckSignature()

    End Function


    ' Create the XML that represents the transform.
    Function CreateXsltTransform(ByVal xsl As String) As XmlDsigXsltTransform
        Dim doc As New XmlDocument()
        doc.LoadXml(xsl)

        Dim xform As New XmlDsigXsltTransform()
        xform.LoadInnerXml(doc.ChildNodes)

        Return xform

    End Function


    ' Create example data to sign.
    Sub CreateSomeXml(ByVal FileName As String)
        ' Create a new XmlDocument object.
        Dim document As New XmlDocument()

        ' Create a new XmlNode object.
        Dim node As XmlNode = document.CreateNode(XmlNodeType.Element, "", "MyXML", "Don't_Sign")

        ' Append the node to the document.
        document.AppendChild(node)

        ' Create a new XmlNode object.
        Dim subnode As XmlNode = document.CreateNode(XmlNodeType.Element, "", "ElementToTransform", "Sign")

        ' Add some text to the node.
        subnode.InnerText = "Here is some data to sign."

        ' Append the node to the document.
        document.DocumentElement.AppendChild(subnode)

        ' Save the XML document to the file name specified.
        Dim xmltw As New XmlTextWriter(FileName, New UTF8Encoding(False))
        document.WriteTo(xmltw)
        xmltw.Close()

    End Sub
End Module

Ejemplo 2

#using <System.Security.dll>
#using <System.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::Text;

ref class Class1
{
public:
   [STAThread]
   static void Main()
   {
      XmlDocument^ productsXml = LoadProducts();
      XmlNodeList^ xsltNodeList = GetXsltAsNodeList();
      TransformDoc( productsXml, xsltNodeList );
      
      // Use XmlDsigXsltTransform to resolve a Uri.
      Uri^ baseUri = gcnew Uri( L"http://www.contoso.com" );
      String^ relativeUri = L"xml";
      Uri^ absoluteUri = ResolveUris( baseUri, relativeUri );
      Console::WriteLine( L"This sample completed successfully; "
      L"press Enter to exit." );
      Console::ReadLine();
   }

private:
   static void TransformDoc( XmlDocument^ xmlDoc, XmlNodeList^ xsltNodeList )
   {
      try
      {
         // Construct a new XmlDsigXsltTransform.
         XmlDsigXsltTransform^ xmlTransform = gcnew XmlDsigXsltTransform;

         // Load the Xslt tranform as a node list.
         xmlTransform->LoadInnerXml( xsltNodeList );

         // Load the Xml document to perform the tranform on.
         XmlNamespaceManager^ namespaceManager;
         namespaceManager = gcnew XmlNamespaceManager( xmlDoc->NameTable );
         XmlNodeList^ productsNodeList;
         productsNodeList = xmlDoc->SelectNodes( L"//.", namespaceManager );
         xmlTransform->LoadInput( productsNodeList );

         // Retrieve the output from the transform.
         Stream^ outputStream = (Stream^)xmlTransform->GetOutput(
            System::IO::Stream::typeid );

         // Read the output stream into a stream reader.
         StreamReader^ streamReader = gcnew StreamReader( outputStream );
         
         // Read the stream into a string.
         String^ outputMessage = streamReader->ReadToEnd();
         
         // Close the streams.
         outputStream->Close();
         streamReader->Close();
         
         // Display to the console the Xml before and after
         // encryption.
         Console::WriteLine( L"\nResult of transformation: {0}", outputMessage );
         ShowTransformProperties( xmlTransform );
      }
      catch ( Exception^ ex ) 
      {
         Console::WriteLine( L"Caught exception in TransformDoc method: {0}", ex );
      }
   }

   static XmlNodeList^ GetXsltAsNodeList()
   {
      String^ transformXml = L"<xsl:transform version='1.0' ";
      transformXml = String::Concat( transformXml,
         L"xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:template match='products'>" );
      transformXml = String::Concat( transformXml,
         L"<table><tr><td>ProductId</td><td>Name</td></tr>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:apply-templates/></table></xsl:template>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:template match='product'><tr>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:apply-templates/></tr></xsl:template>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:template match='productid'><td>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:apply-templates/></td></xsl:template>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:template match='description'><td>" );
      transformXml = String::Concat( transformXml,
         L"<xsl:apply-templates/></td></xsl:template>" );
      transformXml = String::Concat( transformXml,
         L"</xsl:transform>" );
      Console::WriteLine( L"\nCreated the following Xslt tranform:" );
      Console::WriteLine( transformXml );
      XmlDocument^ xmlDoc = gcnew XmlDocument;
      xmlDoc->LoadXml( transformXml );
      return xmlDoc->GetElementsByTagName( L"xsl:transform" );
   }

   // Encrypt the text in the specified XmlDocument.
   static void ShowTransformProperties( XmlDsigXsltTransform^ xmlTransform )
   {
      String^ classDescription = xmlTransform->ToString();
      Console::WriteLine( L"\n** Summary for {0} **", classDescription );
      
      // Retrieve the XML representation of the current transform.
      XmlElement^ xmlInTransform = xmlTransform->GetXml();
      Console::WriteLine( L"Xml representation of the current transform:\n{0}",
         xmlInTransform->OuterXml );
      
      // Ensure the transform is using the proper algorithm.
      xmlTransform->Algorithm = SignedXml::XmlDsigXsltTransformUrl;
      Console::WriteLine( L"Algorithm used: {0}", classDescription );
      
      // Retrieve the valid input types for the current transform.
      array<Type^>^validInTypes = xmlTransform->InputTypes;
      Console::WriteLine( L"Transform accepts the following inputs:" );
      for ( int i = 0; i < validInTypes->Length; i++ )
      {
         Console::WriteLine( L"\t{0}", validInTypes[ i ] );

      }
      
      array<Type^>^validOutTypes = xmlTransform->OutputTypes;
      Console::WriteLine( L"Transform outputs in the following types:" );
      for ( int i = validOutTypes->Length - 1; i >= 0; i-- )
      {
         Console::WriteLine( L"\t {0}", validOutTypes[ i ] );
         if ( validOutTypes[ i ] == Object::typeid )
         {
            Object^ outputObject = xmlTransform->GetOutput();
         }
      }
   }

   // Create an XML document describing various products.
   static XmlDocument^ LoadProducts()
   {
      String^ contosoProducts = L"<?xml version='1.0'?>";
      contosoProducts = String::Concat( contosoProducts,
         L"<products>" );
      contosoProducts = String::Concat( contosoProducts,
         L"<product><productid>1</productid>" );
      contosoProducts = String::Concat( contosoProducts,
         L"<description>Widgets</description></product>" );
      contosoProducts = String::Concat( contosoProducts,
         L"<product><productid>2</productid>" );
      contosoProducts = String::Concat( contosoProducts,
         L"<description>Gadgits</description></product>" );
      contosoProducts = String::Concat( contosoProducts,
         L"</products>" );
      Console::WriteLine(
         L"\nCreated the following Xml document for tranformation:" );
      Console::WriteLine( contosoProducts );
      XmlDocument^ xmlDoc = gcnew XmlDocument;
      xmlDoc->LoadXml( contosoProducts );
      return xmlDoc;
   }

   // Resolve the specified base and relative Uri's .
   static Uri^ ResolveUris( Uri^ baseUri, String^ relativeUri )
   {
      XmlUrlResolver^ xmlResolver = gcnew XmlUrlResolver;
      xmlResolver->Credentials =
         System::Net::CredentialCache::DefaultCredentials;

      XmlDsigXsltTransform^ xmlTransform = gcnew XmlDsigXsltTransform;
      xmlTransform->Resolver = xmlResolver;

      Uri^ absoluteUri = xmlResolver->ResolveUri( baseUri, relativeUri );
      if ( absoluteUri != nullptr )
      {
         Console::WriteLine(
         L"\nResolved the base Uri and relative Uri to the following:" );
         Console::WriteLine( absoluteUri );
      }
      else
      {
         Console::WriteLine( L"Unable to resolve the base Uri and relative Uri" );
      }

      return absoluteUri;
   }
};

int main()
{
   Class1::Main();
}

//
// This sample produces the following output:
//
// Created the following Xml document for tranformation:
// <?xml version='1.0'?><products><product><productid>1</productid><descriptio
// n>Widgets</description></product><product><productid>2</productid><descript
// ion>Gadgits</description></product></products>
//
// Created the following Xslt tranform:
// <xsl:transform version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transfor
// m'><xsl:template match='products'><table><tr><td>ProductId</td><td>Name</td
// ></tr><xsl:apply-templates/></table></xsl:template><xsl:template match='pro
// duct'><tr><xsl:apply-templates/></tr></xsl:template><xsl:emplate match='pro
// ductid'><td><xsl:apply-templates/></td></xsl:template><xsl:template match='
// description'><td><xsl:apply-templates/></td></xsl:template></xsl:transform>
//
// Result of transformation: <table><tr><td>ProductId</td><td>Name</td></tr><t
// r><td>1</td><td>Widgets</td></tr><tr><td>2</td><td>Gadgits</td></tr></table
// >
//
// ** Summary for System.Security.Cryptography.Xml.XmlDsigXsltTransform **
// Xml representation of the current transform:
// <Transform Algorithm="http://www.w3.org/TR/1999/REC-xslt-19991116" xmlns="h
// ttp://www.w3.org/2000/09/xmldsig#"><xsl:transform version="1.0" xmlns:xsl="
// http://www.w3.org/1999/XSL/Transform"><xsl:template match="products"><table
//  xmlns=""><tr><td>ProductId</td><td>Name</td></tr><xsl:apply-templates /></
// table></xsl:template><xsl:template match="product"><tr xmlns=""><xsl:apply-
// templates /></tr></xsl:template><xsl:template match="productid"><td xmlns="
// "><xsl:apply-templates /></td></xsl:template><xsl:template match="descripti
// on"><td xmlns=""><xsl:apply-templates /></td></xsl:template></xsl:transform
// ></Transform>
// Algorithm used: System.Security.Cryptography.Xml.XmlDsigXsltTransform
// Transform accepts the following inputs:
// System.IO.Stream
// System.Xml.XmlDocument
// System.Xml.XmlNodeList
// Transform outputs in the following types:
// System.IO.Stream
//
// Resolved the base Uri and relative Uri to the following:
// http://www.contoso.com/xml
// This sample completed successfully; press Enter to exit.

using System;
using System.IO;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Text;

class Class1
{
    [STAThread]
    static void Main(string[] args)
    {
        XmlDocument productsXml = LoadProducts();
        XmlNodeList xsltNodeList = GetXsltAsNodeList();
        TransformDoc(productsXml, xsltNodeList);

        // Use XmlDsigXsltTransform to resolve a Uri.
        Uri baseUri = new Uri("http://www.contoso.com");
        string relativeUri = "xml";
        Uri absoluteUri = ResolveUris(baseUri, relativeUri);

        Console.WriteLine("This sample completed successfully; " +
            "press Enter to exit.");
        Console.ReadLine();
    }

    private static void TransformDoc(
        XmlDocument xmlDoc, 
        XmlNodeList xsltNodeList)
    {
        try 
        {
            // Construct a new XmlDsigXsltTransform.
            XmlDsigXsltTransform xmlTransform = 
                new XmlDsigXsltTransform();

            // Load the Xslt tranform as a node list.
            xmlTransform.LoadInnerXml(xsltNodeList);

            // Load the Xml document to perform the tranform on.
            XmlNamespaceManager namespaceManager;
            namespaceManager = new XmlNamespaceManager(xmlDoc.NameTable);

            XmlNodeList productsNodeList;
            productsNodeList = xmlDoc.SelectNodes("//.", namespaceManager);

            xmlTransform.LoadInput(productsNodeList);

            // Retrieve the output from the transform.
            Stream outputStream = (Stream)
                xmlTransform.GetOutput(typeof(System.IO.Stream));

            // Read the output stream into a stream reader.
            StreamReader streamReader =
                new StreamReader(outputStream);

            // Read the stream into a string.
            string outputMessage = streamReader.ReadToEnd();

            // Close the streams.
            outputStream.Close();
            streamReader.Close();

            // Display to the console the Xml before and after
            // encryption.
            Console.WriteLine("\nResult of transformation: " + outputMessage);
            ShowTransformProperties(xmlTransform);
        }
        catch (Exception ex)
        {
            Console.WriteLine("Caught exception in TransformDoc method: " + 
                ex.ToString());
        }
    }
    
    private static XmlNodeList GetXsltAsNodeList()
    {
        string transformXml = "<xsl:transform version='1.0' ";
        transformXml += "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>";
        transformXml += "<xsl:template match='products'>";
        transformXml += "<table><tr><td>ProductId</td><td>Name</td></tr>";
        transformXml += "<xsl:apply-templates/></table></xsl:template>";
        transformXml += "<xsl:template match='product'><tr>";
        transformXml += "<xsl:apply-templates/></tr></xsl:template>";
        transformXml += "<xsl:template match='productid'><td>";
        transformXml += "<xsl:apply-templates/></td></xsl:template>";
        transformXml += "<xsl:template match='description'><td>";
        transformXml += "<xsl:apply-templates/></td></xsl:template>";
        transformXml += "</xsl:transform>";

        Console.WriteLine("\nCreated the following Xslt tranform:");
        Console.WriteLine(transformXml);

        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.LoadXml(transformXml);
        return xmlDoc.GetElementsByTagName("xsl:transform");
    }

    // Encrypt the text in the specified XmlDocument.
    private static void ShowTransformProperties(
        XmlDsigXsltTransform xmlTransform)
    {
        string classDescription = xmlTransform.ToString();
        Console.WriteLine("\n** Summary for " + classDescription + " **");

        // Retrieve the XML representation of the current transform.
        XmlElement xmlInTransform = xmlTransform.GetXml();
        Console.WriteLine("Xml representation of the current transform:\n" +
            xmlInTransform.OuterXml);

        // Ensure the transform is using the proper algorithm.
        xmlTransform.Algorithm =
            SignedXml.XmlDsigXsltTransformUrl;
        Console.WriteLine("Algorithm used: " + classDescription);

        // Retrieve the valid input types for the current transform.
        Type[] validInTypes = xmlTransform.InputTypes;
        Console.WriteLine("Transform accepts the following inputs:");
        for (int i=0; i<validInTypes.Length; i++)
        {
            Console.WriteLine("\t" + validInTypes[i].ToString());
        }

        Type[] validOutTypes = xmlTransform.OutputTypes;
        Console.WriteLine("Transform outputs in the following types:");
        for (int i=validOutTypes.Length-1; i >= 0; i--)
        {
            Console.WriteLine("\t " + validOutTypes[i].ToString());

            if (validOutTypes[i] == typeof(object))
            {
                object outputObject = xmlTransform.GetOutput();
            }
        }
    }

    // Create an XML document describing various products.
    private static XmlDocument LoadProducts()
    {
        string contosoProducts = "<?xml version='1.0'?>";
        contosoProducts += "<products>";
        contosoProducts += "<product><productid>1</productid>";
        contosoProducts += "<description>Widgets</description></product>";
        contosoProducts += "<product><productid>2</productid>";
        contosoProducts += "<description>Gadgits</description></product>";
        contosoProducts += "</products>";

        Console.WriteLine(
            "\nCreated the following Xml document for tranformation:");
        Console.WriteLine(contosoProducts);

        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.LoadXml(contosoProducts);
        return xmlDoc;
    }

    // Resolve the specified base and relative Uri's .
    private static Uri ResolveUris(Uri baseUri, string relativeUri)
    {
        XmlUrlResolver xmlResolver = new XmlUrlResolver();
        xmlResolver.Credentials = 
            System.Net.CredentialCache.DefaultCredentials;

        XmlDsigXsltTransform xmlTransform =
            new XmlDsigXsltTransform();
        xmlTransform.Resolver = xmlResolver;

        Uri absoluteUri = xmlResolver.ResolveUri(baseUri, relativeUri);
        if (absoluteUri != null)
        {
            Console.WriteLine(
                "\nResolved the base Uri and relative Uri to the following:");
            Console.WriteLine(absoluteUri.ToString());
        }
        else
        {
            Console.WriteLine(
                "Unable to resolve the base Uri and relative Uri");
        }
        return absoluteUri;
    }
}
//
// This sample produces the following output:
//
// Created the following Xml document for tranformation:
// <?xml version='1.0'?><products><product><productid>1</productid><descriptio
// n>Widgets</description></product><product><productid>2</productid><descript
// ion>Gadgits</description></product></products>
// 
// Created the following Xslt tranform:
// <xsl:transform version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transfor
// m'><xsl:template match='products'><table><tr><td>ProductId</td><td>Name</td
// ></tr><xsl:apply-templates/></table></xsl:template><xsl:template match='pro
// duct'><tr><xsl:apply-templates/></tr></xsl:template><xsl:emplate match='pro
// ductid'><td><xsl:apply-templates/></td></xsl:template><xsl:template match='
// description'><td><xsl:apply-templates/></td></xsl:template></xsl:transform>
// 
// Result of transformation: <table><tr><td>ProductId</td><td>Name</td></tr><t
// r><td>1</td><td>Widgets</td></tr><tr><td>2</td><td>Gadgits</td></tr></table
// >
//
// ** Summary for System.Security.Cryptography.Xml.XmlDsigXsltTransform **
// Xml representation of the current transform:
// <Transform Algorithm="http://www.w3.org/TR/1999/REC-xslt-19991116" xmlns="h
// ttp://www.w3.org/2000/09/xmldsig#"><xsl:transform version="1.0" xmlns:xsl="
// http://www.w3.org/1999/XSL/Transform"><xsl:template match="products"><table
//  xmlns=""><tr><td>ProductId</td><td>Name</td></tr><xsl:apply-templates /></
// table></xsl:template><xsl:template match="product"><tr xmlns=""><xsl:apply-
// templates /></tr></xsl:template><xsl:template match="productid"><td xmlns="
// "><xsl:apply-templates /></td></xsl:template><xsl:template match="descripti
// on"><td xmlns=""><xsl:apply-templates /></td></xsl:template></xsl:transform
// ></Transform>
// Algorithm used: System.Security.Cryptography.Xml.XmlDsigXsltTransform
// Transform accepts the following inputs:
// System.IO.Stream
// System.Xml.XmlDocument
// System.Xml.XmlNodeList
// Transform outputs in the following types:
// System.IO.Stream
// 
// Resolved the base Uri and relative Uri to the following:
// http://www.contoso.com/xml
// This sample completed successfully; press Enter to exit.

Imports System.IO
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.Text

Public Class Form1
    Inherits System.Windows.Forms.Form

    ' Event handler for Run button.
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click

        tbxOutput.Cursor = Cursors.WaitCursor
        tbxOutput.Text = ""

        Dim productsXml As XmlDocument = LoadProducts()
        Dim xsltNodeList As XmlNodeList = GetXsltAsNodeList()
        TransformDoc(productsXml, xsltNodeList)

        ' Use XmlDsigXsltTransform to resolve a Uri.
        Dim baseUri As New Uri("http://www.contoso.com")
        Dim relativeUri As String = "xml"
        Dim absoluteUri As Uri = ResolveUris(baseUri, relativeUri)

        ' Align interface and conclude application.
        WriteLine(vbCrLf + "This sample completed successfully;" + _
            " press Exit to continue.")

        ' Reset the cursor.
        tbxOutput.Cursor = Cursors.Default
    End Sub

    ' Create an XML document describing various products.
    Private Function LoadProducts() As XmlDocument
        Dim contosoProducts As String = "<?xml version='1.0'?>"
        contosoProducts += "<products>"
        contosoProducts += "<product><productid>1</productid>"
        contosoProducts += "<description>Widgets</description></product>"
        contosoProducts += "<product><productid>2</productid>"
        contosoProducts += "<description>Gadgits</description></product>"
        contosoProducts += "</products>"

        WriteLine(vbCrLf + _
            "Created the following Xml document for tranformation:")
        WriteLine(contosoProducts)

        Dim xmlDoc As New XmlDocument
        xmlDoc.LoadXml(contosoProducts)
        Return xmlDoc
    End Function

    Private Function GetXsltAsNodeList() As XmlNodeList
        Dim transformXml As String = "<xsl:transform version='1.0' "
        transformXml += "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>"
        transformXml += "<xsl:template match='products'>"
        transformXml += "<table><tr><td>ProductId</td><td>Name</td></tr>"
        transformXml += "<xsl:apply-templates/></table></xsl:template>"
        transformXml += "<xsl:template match='product'><tr>"
        transformXml += "<xsl:apply-templates/></tr></xsl:template>"
        transformXml += "<xsl:template match='productid'><td>"
        transformXml += "<xsl:apply-templates/></td></xsl:template>"
        transformXml += "<xsl:template match='description'><td>"
        transformXml += "<xsl:apply-templates/></td></xsl:template>"
        transformXml += "</xsl:transform>"

        WriteLine(vbCrLf + "Created the following Xslt tranform:")
        WriteLine(transformXml)

        Dim xmlDoc As New XmlDocument
        xmlDoc.LoadXml(transformXml)
        Return xmlDoc.GetElementsByTagName("xsl:transform")
    End Function

    Private Sub TransformDoc( _
        ByVal xmlDoc As XmlDocument, _
        ByVal xsltNodeList As XmlNodeList)

        Try
            ' Construct a new XmlDsigXsltTransform.
            Dim xmlTransform As New XmlDsigXsltTransform

            ' Load the Xslt tranform as a node list.
            xmlTransform.LoadInnerXml(xsltNodeList)

            ' Load the Xml document to perform the tranform on.
            dim namespaceManager as New XmlNamespaceManager(xmlDoc.NameTable)

            Dim productsNodeList As XmlNodeList
            productsNodeList = xmlDoc.SelectNodes("//.", namespaceManager)

            xmlTransform.LoadInput(productsNodeList)

            ' Retrieve the output from the transform.
            Dim outputStream As Stream
            outputStream = CType(xmlTransform.GetOutput( _
                GetType(System.IO.Stream)), _
                System.IO.Stream)

            ' Read the output stream into a stream reader.
            Dim streamReader As New StreamReader(outputStream)

            ' Read the stream into a string.
            Dim outputMessage As String = streamReader.ReadToEnd()

            ' Close the streams.
            outputStream.Close()
            streamReader.Close()

            ' Display to the console the Xml before and after encryption.
            WriteLine(vbCrLf + "Result of transformation: " + outputMessage)
            ShowTransformProperties(xmlTransform)
        Catch ex As Exception
            WriteLine("Caught exception in TransformDoc method: " + _
                ex.ToString())
        End Try
    End Sub

    Private Sub ShowTransformProperties( _
            ByVal xmlTransform As XmlDsigXsltTransform)

        Dim classDescription As String = xmlTransform.ToString()
        WriteLine(vbCrLf + "** Summary for " + classDescription + " **")

        ' Retrieve the XML representation of the current transform.
        Dim xmlInTransform As XmlElement = xmlTransform.GetXml()
        WriteLine("Xml representation of the current transform:" + _
            vbCrLf + xmlInTransform.OuterXml)

        ' Ensure the transform is using the proper algorithm.
        xmlTransform.Algorithm = SignedXml.XmlDsigXsltTransformUrl
        Console.WriteLine("Algorithm used: " + classDescription)

        ' Retrieve the valid input types for the current transform.
        Dim validInTypes() As Type = xmlTransform.InputTypes
        WriteLine("Transform accepts the following inputs:")
        For i As Int16 = 0 To validInTypes.Length - 1 Step 1
            WriteLine("   " + validInTypes(i).ToString())
        Next

        Dim validOutTypes() As Type = xmlTransform.OutputTypes
        WriteLine("Transform outputs in the following types:")
        For j As Int16 = 0 To validOutTypes.Length - 1 Step 1

            WriteLine("   " + validOutTypes(j).ToString())
            If (validOutTypes(j).Equals(GetType(Object))) Then
                Dim outputObject As Object = xmlTransform.GetOutput()
            End If
        Next
    End Sub

    ' Resolve the specified base and relative Uri's .
    Private Function ResolveUris( _
        ByVal baseUri As Uri, _
        ByVal relativeUri As String) As Uri

        Dim xmlResolver As New XmlUrlResolver
        xmlResolver.Credentials = _
            System.Net.CredentialCache.DefaultCredentials

        Dim xmlTransform As New XmlDsigXsltTransform
        xmlTransform.Resolver = xmlResolver

        Dim absoluteUri As Uri = xmlResolver.ResolveUri(baseUri, relativeUri)
        If (Not absoluteUri Is Nothing) Then
            WriteLine(vbCrLf + _
                "Resolved the base Uri and relative Uri to the following:")
            WriteLine(absoluteUri.ToString())
        Else
            WriteLine("Unable to resolve the base Uri and relative Uri")
        End If
        
        Return absoluteUri
    End Function

    ' Write specified message and carriage return to the output textbox.
    Private Sub WriteLine(ByVal message As String)
        tbxOutput.AppendText(message + vbCrLf)

    End Sub

    ' Event handler for Exit button.
    Private Sub Button2_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button2.Click

        Application.Exit()
    End Sub
#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Panel2 As System.Windows.Forms.Panel
    Friend WithEvents Panel1 As System.Windows.Forms.Panel
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.tbxOutput = New System.Windows.Forms.RichTextBox
        Me.Panel2.SuspendLayout()
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel2
        '
        Me.Panel2.Controls.Add(Me.Button1)
        Me.Panel2.Controls.Add(Me.Button2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
        Me.Panel2.DockPadding.All = 20
        Me.Panel2.Location = New System.Drawing.Point(0, 320)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(616, 64)
        Me.Panel2.TabIndex = 1
        '
        'Button1
        '
        Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button1.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(446, 20)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "&Run"
        '
        'Button2
        '
        Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button2.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(521, 20)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75, 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "E&xit"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.tbxOutput)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.DockPadding.All = 20
        Me.Panel1.Location = New System.Drawing.Point(0, 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(616, 320)
        Me.Panel1.TabIndex = 2
        '
        'tbxOutput
        '
        Me.tbxOutput.AccessibleDescription = _
            "Displays output from application."
        Me.tbxOutput.AccessibleName = "Output textbox."
        Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
        Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
        Me.tbxOutput.Name = "tbxOutput"
        Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
        Me.tbxOutput.TabIndex = 1
        Me.tbxOutput.Text = "Click the Run button to run the application."
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
        Me.ClientSize = New System.Drawing.Size(616, 384)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Name = "Form1"
        Me.Text = "XmlDsigXsltTransform"
        Me.Panel2.ResumeLayout(False)
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region
End Class
'
' This sample produces the following output:
' 
' Created the following Xml document for tranformation:
' <?xml version='1.0'?><products><product><productid>1</productid><description
' >Widgets</description></product><product><productid>2</productid><descriptio
' n>Gadgits</description></product></products>
' 
' Created the following Xslt tranform:
' <xsl:transform version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform
' '><xsl:template match='products'><table><tr><td>ProductId</td><td>Name</td><
' /tr><xsl:apply-templates/></table></xsl:template><xsl:template match='produc
' t'><tr><xsl:apply-templates/></tr></xsl:template><xsl:template match='produc
' tid'><td><xsl:apply-templates/></td></xsl:template><xsl:template match='desc
' ription'><td><xsl:apply-templates/></td></xsl:template></xsl:transform>
' 
' Result of transformation: <table><tr><td>ProductId</td><td>Name</td></tr><tr
' ><td>1</td><td>Widgets</td></tr><tr><td>2</td><td>Gadgits</td></tr></table>
' 
' ** Summary for System.Security.Cryptography.Xml.XmlDsigXsltTransform **
' Xml representation of the current transform:
' <Transform Algorithm="http://www.w3.org/TR/1999/REC-xslt-19991116" xmlns="ht
' tp://www.w3.org/2000/09/xmldsig#"><xsl:transform version="1.0" xmlns:xsl="ht
' tp://www.w3.org/1999/XSL/Transform"><xsl:template match="products"><table xm
' lns=""><tr><td>ProductId</td><td>Name</td></tr><xsl:apply-templates /></tabl
' e></xsl:template><xsl:template match="product"><tr xmlns=""><xsl:apply-templ
' ates /></tr></xsl:template><xsl:template match="productid"><td xmlns=""><xsl
' :apply-templates /></td></xsl:template><xsl:template match="description"><td
'  xmlns=""><xsl:apply-templates /></td></xsl:template></xsl:transform></Trans
' form>
' Transform accepts the following inputs:
'    System.IO.Stream
'    System.Xml.XmlDocument
'    System.Xml.XmlNodeList
' Transform outputs in the following types:
'    System.IO.Stream
' 
' Resolved the base Uri and relative Uri to the following:
' http://www.contoso.com/xml
' 
' This sample completed successfully; press Exit to continue.

Comentarios

La XmlDsigXPathTransform clase permite dirigir un documento XML mediante una transformación XSLT. Esta clase usa XSLT para transformar nodos XML en otros nodos XML que desea firmar o cifrar.

Use la XmlDsigXsltTransform clase para firmar o cifrar partes específicas de un documento XML mediante una transformación XSLT.

El identificador uniforme de recursos (URI) que describe la XmlDsigXsltTransform clase se define mediante el XmlDsigXsltTransformUrl campo .

Para obtener más información sobre la transformación XSLT, vea la sección 6.6.5 de la especificación XMLDSIG de W3C.

Constructores

XmlDsigXsltTransform()	Inicializa una nueva instancia de la clase XmlDsigXsltTransform.
XmlDsigXsltTransform(Boolean)	Inicializa una nueva instancia de la clase XmlDsigXsltTransform con comentarios, si se especifican.

Propiedades

Algorithm	Obtiene o establece el identificador uniforme de recursos (URI) que identifica el algoritmo ejecutado en la transformación actual. (Heredado de Transform)
Context	Obtiene o establece un objeto XmlElement que representa el contexto del documento en el que se está ejecutando el objeto Transform actual. (Heredado de Transform)
InputTypes	Obtiene una matriz de tipos que son entradas válidas al método LoadInput(Object) del objeto XmlDsigXsltTransform actual.
OutputTypes	Obtiene una matriz de tipos que son posibles resultados de los métodos GetOutput() del objeto XmlDsigXsltTransform actual.
PropagatedNamespaces	Obtiene o establece un objeto Hashtable que contiene los espacios de nombres que se propagan en la firma. (Heredado de Transform)
Resolver	Establece el objeto XmlResolver actual. (Heredado de Transform)

Métodos

Equals(Object)	Determina si el objeto especificado es igual que el objeto actual. (Heredado de Object)
GetDigestedOutput(HashAlgorithm)	Cuando se reemplaza en una clase derivada, devuelve el algoritmo de síntesis asociado a un objeto Transform. (Heredado de Transform)
GetHashCode()	Sirve como la función hash predeterminada. (Heredado de Object)
GetInnerXml()	Devuelve una representación XML de los parámetros del objeto XmlDsigXsltTransform que son adecuados para incluirlos como subelementos de un elemento `<Transform>` XMLDSIG.
GetOutput()	Devuelve la salida del objeto XmlDsigXsltTransform actual.
GetOutput(Type)	Devuelve la salida del objeto XmlDsigXsltTransform actual del tipo Stream.
GetType()	Obtiene el Type de la instancia actual. (Heredado de Object)
GetXml()	Devuelve la representación XML del objeto Transform actual. (Heredado de Transform)
LoadInnerXml(XmlNodeList)	Analiza el objeto XmlNodeList especificado como contenido específico de la transformación de un elemento `<Transform>` y configura el estado interno del objeto XmlDsigXsltTransform actual para que coincida con el elemento `<Transform>`.
LoadInput(Object)	Carga la entrada especificada en el objeto XmlDsigXsltTransform actual.
MemberwiseClone()	Crea una copia superficial del Object actual. (Heredado de Object)
ToString()	Devuelve una cadena que representa el objeto actual. (Heredado de Object)

Se aplica a

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