xslt, multiple transforms

[Random]

Can anyone provide a good example of the simplest way to do multiple
transformations on an xml file? I start out with an xml string and three
physical xslt files, and want to transform the xml using all three
stylesheets, one at a time, and end up with a result xml string.

All the examples I can find have the xml being written to a physical file
every time, and this is not what I want. I can use an in-memory xmlwriter
or xmldocument if that will simplify things.

 

[Wilco Bauwer]

First of all create an XslTransform instance. Then load the XSLT
document (Load()). After that you can apply a transformation to for
example an XmlDocument, by calling Transform(yourDocument,
myXsltArgumentList, output). Some of the allowed outputs are a
textwriter and a stream. This allows you to both write to a
MemoryStream or for example a StringWriter. After you applied a
transformation, you can use both the stream or the string as an input
for your new xml document (XmlDocument.Load and XmlDocument.LoadXml are
relevant).

 

[Random]

This is what I'm trying. I'm still relatively unfamiliar with the Stream
objects, so I'm probably just not understanding how to properly extract the
xml text out to re-use in my next transformation. What method(s) could I
use here?

 

[Wilco Bauwer]

Once you got the result in a memory stream, you can load it in a new
XML document. You can use that new document for your next
transformation. You can do this as many times as you want.

It should look something like:
MemoryStream outputStream = new MemoryStream();
myTransformer.Transform(inputDoc, args, outputStream);

XmlDocument outputDoc = new XmlDocument();
outputDoc.Load(outputStream);