How best to use XPath with very large XML files in .NET?

Question

I need to do some processing on fairly large XML files ( large here being potentially upwards of a gigabyte ) in C# including performing some complex xpath queries. The prob

Answer 1

In order to perform XPath queries with the standard .NET classes the whole document tree needs to be loaded in memory which might not be a good idea if it can take up to a gigabyte. IMHO the XmlReader is a nice class for handling such tasks.