Is reading from an XmlDocument object thread safe?

Question

I was wondering if i could safely read from an XmlDocument object using SelectNodes() and SelectSingleNode() from multiple threads with no problems. MSDN says that they are

Answer 1

As you are going to write/read to/from the XML document you need to synchronize those two operations if you don't want to run into race conditions. And if you care about performance (who doesn't?) a ReaderWriterLockSlim might perform better than locking.