Transform XML with XSL, and string

Posted by Marcus Hammarberg on June 14, 2007
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This took us a while to find and put together. I don't want to have to go through it again.

This function takes a xml-string and transforms it with the sent-in xsl (also string). The output is returned as a memory stream that, for example, can be set in a webbrowser controls DocumentStream property.

Here is the code (yes, in my favorite new language VB.NET ;)):


Friend Shared Function TransformXML(ByVal xmlString As String, ByVal xslString As String) As MemoryStream
Dim memStream As MemoryStream = Nothing
Try
' Create a xml document from the sent-in string
Dim xmlDoc As New XmlDocument
xmlDoc.LoadXml(xmlString)

' Load the xsl as a xmldocument, from the sent-in string
Dim xslDoc As New XmlDocument
xslDoc.LoadXml(xslString)

' Create and load an transformation
Dim trans As New XslCompiledTransform
trans.Load(xslDoc)

' Create a memorystrem to hold the response
memStream = New MemoryStream()
Dim srWriter As New StreamWriter(memStream)

' Transform according to the xsl and save the result in the memStream
' variable
trans.Transform(xmlDoc, Nothing, memStream)

' Set the intial position of the memorystream
memStream.Position = 0
Catch ex As Exception
Console.Write(ex.ToString())
End Try
Return memStream
End Function


Published by Marcus Hammarberg on Last updated