How to migrate from XslTransform to XslCompiledTransform

Posted by Atara on Stack Overflow See other posts from Stack Overflow or by Atara
Published on 2010-03-14T13:21:56Z Indexed on 2010/03/14 13:25 UTC
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I have the following code that I need to migrate from VS 2003 (.Net 1.1) to VS 2008 (.Net 2+) but I get compilation error -

System.Xml.Xsl.XslTransform' is obsolete: This class has been deprecated. I probably need to use System.Xml.Xsl.XslCompiledTransform instead. but I do not find the matching Load() and Transform() overload versions that I can use with all the parameters of my original code.

in MSDN [How to: Migrate Your XslTransform Code] I only found some simpler cases. http://msdn.microsoft.com/en-us/library/aa983475%28VS.80%29.aspx but in my code I see some remarks that hints that the added parameters were used to avoid exceptions, so I prefer to use these parameters.

Can someone please help migrating this code?

Thanks, Atara

' ----------------------------------------------------------------------   
' VS 2003 code:
' ----------------------------------------------------------------------

. . .

Dim myXslDoc As Xml.XmlDocument

' ----------------------------------------------------------------------   
  Public Sub mcSetParameters(ByVal srcFileName As String)
' ----------------------------------------------------------------------

 Me.myXslDoc = New Xml.XmlDocument 
 Me.myXslDoc.Load(srcFileName) 

End Sub


' ----------------------------------------------------------------------    
  Public Sub mcSetHtml()
' ----------------------------------------------------------------------

 Dim oXPathNav As System.Xml.XPath.XPathNavigator = xmlDoc.DocumentElement.CreateNavigator()

 Dim sbContent As New System.Text.StringBuilder
 Dim swContent As New System.IO.StringWriter(sbContent)        

 Dim args As New System.Xml.Xsl.XsltArgumentList
 args.AddParam("paramName1", "", paramVal1.ToString)
 args.AddParam("paramName2", "", paramVal2.ToString)

 Try
   ' Try to avoid "Invalid site" exception, by using XmlUrlResolver and Evidence.
   ' If the XSLT stylesheet . . . comes from a code base that you trust, Then use Me.GetType().Assembly.Evidence() 
   Dim resolver As System.Xml.XmlUrlResolver = New System.Xml.XmlUrlResolver
   resolver.Credentials = System.Net.CredentialCache.DefaultCredentials
   Dim xslt As System.Xml.Xsl.XslTransform = New System.Xml.Xsl.XslTransform 
   xslt.Load(Me.myXslDoc, resolver, Me.GetType().Assembly.Evidence())        
   xslt.Transform(oXPathNav, args, swContent, Nothing)                       
 Catch ex As Exception
   Debug.WriteLine("Exception: {0}", ex.ToString())
 End Try

 DoSomething(sbContent.ToString())

End Sub

' ----------------------------------------------------------------------

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