title: How to validate an XML document?
body: <p>My C#/.NET application reads XML files that are manually edited by the users. The allowed elements and tags are described in the application's documentation. I'm using LINQ to extract data from the XML file.</p>
  
  <p>Before extracting data from the XML file, I'd like to validate it to see if it has the expected structure. If not, it would be nice to have information about what is wrong so that I can give some feeback to the user.</p>
  
  <p>What's the simplest way to do this in C#?</p>