XmlDocument type not found even though I've referenced System.XML?

Question

I\'ve referenced System.Xml:

using System.Xml;

Then in this line:

XmlDocument xdoc = new XmlDocument();

I

Answer 1

Are you perhaps working inside a SilverLight project?

Only time I have experienced this was when starting out in SilverLight, I did not realise that not all of the System.XML was in the Silverlight CLR version. I used System.Linq.XML instead.