From my old blog, April 9, 2009. No longer maintained.

XmlDatasource caches automattically.

The original is on archive.org.

If you run into the issue of using a data control such as a gridview with an xmldatasource….

Make sure that you set the EnableCaching property equal to false.

http://forums.asp.net/t/1262408.aspx

All old blog posts