I am having trouble tracking down information regarding extending Intellisense. It looks like creating a plugin for VS 2010 or Resharper would do the trick. However, I can't find any documentation for adding items to the intellisense dropdown.
This post got pretty close: How to extend IntelliSense items?
But I couldn't find any documentation for the interfaces or classes being used.
What I am trying to do is to read from an XML file, and add those tags as part of the results that show up in intellisense in the C# code (not in XML).