XSLT Optimization

[rviray]

Hopefully, someone could point me in the right direction. I have web
services that takes a DataSet object and Transforms it into a
pre-defined XSD (outside of my organization's control). I have
successfully done everything, now I am at a point where I want to
verify that my XSLT logic is optimized. Since I am new to XSLT coding
logic, I want to make sure that my transformation from DataSet to new
XML format is optimal.

Basically, I want to find out any resources (website, books, etc.) that
you would highly recommend. There are alot of books out there, but I
wanted to "cut through the chase" and get your input.

Also, here is my implementation of the XMLTransform, if you see
anything that I could do to optimize the Transformation, please tell
me...

XmlDataDocument doc = new XmlDataDocument (<DataSet Object>);
XPathNavigator nav = doc.CreateNavig ator();
XmlDataDocument oDoc2 = new XmlDataDocument ();
XslTransform transForm = new XslTransform();
transForm.Load( Server.MapPath( xsltFilePath));
MemoryStream oMem = new MemoryStream();
try
{
doc.PreserveWhi tespace = false;
xsl.Transform(n av,null,oMem,nu ll);
oMem.Flush();
oMem.Position = 0;
oDoc2.PreserveW hitespace = false;
oDoc2.Load(oMem );
return oDoc2;
}
catch(Exception )
{<exception logic>}
finally{<clean up>}

Thanks for your time!
--
rviray
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[Oleg Tkachenko [MVP]]

rviray wrote:

Basically, I want to find out any resources (website, books, etc.) that
you would highly recommend. There are alot of books out there, but I
wanted to "cut through the chase" and get your input.
Take a look here
http://msdn.microsoft.com/library/de...NetChapt09.asp
XmlDataDocument doc = new XmlDataDocument (<DataSet Object>);
XmlDataDocument is the slowest XML store for XSLT. If you need the
fastest one - use XPathDocument. Then you would need to copy all your
data though, so go measure first.
XPathNavigator nav = doc.CreateNavig ator();
XmlDataDocument oDoc2 = new XmlDataDocument ();
XslTransform transForm = new XslTransform();
transForm.Load( Server.MapPath( xsltFilePath));
MemoryStream oMem = new MemoryStream();
try
{
doc.PreserveWhi tespace = false;
xsl.Transform(n av,null,oMem,nu ll);
oMem.Flush();
oMem.Position = 0;
oDoc2.PreserveW hitespace = false;
oDoc2.Load(oMem );

This is wrong, don't buffer output, stream it:

oDoc2.Load(xsl. Transform(nav,( XsltArgumentLis t)null,(XmlReso lver)null));

--
Oleg Tkachenko [XML MVP, MCAD]
http://www.XmlLab.Net | http://www.XLinq.Net | http://blog.tkachenko.com

[stylusstudio]

Hi rviray,

For XSLT optimization, check out the Stylus Studio XSLT Profiler:
http://www.stylusstudio.com/xslt_profiler.html

You can create a detailed node-by-node performance analysis of your
XSLT stylesheet to help locate and eliminate bottlenecks. Here's a
sample XSLT profiling report.
http://www.stylusstudio.com/examples...sltprofile.htm

It supports both MSXML 3/0/4.0 and Microsoft System.XML, so you can
even benchmark your XSLT against different XSLT processors. You can
download a free trial of Stylus Studio here:
http://www.stylusstudio.com/xml_download.html - Hope that helps.

Sincerely,
The Stylus Studio Team
http://www.stylusstudio.com