C # class library methods summary not showing in intellisense

Question

I'm not sure how I feel

Answer 1

I guess here, but if this is your class library, you must make sure that you are actually creating an XML documentation file, otherwise method summaries will be available from only one assembly.

Project Properties → Creation Tab → Exit Section → Check XML Documentation File

Obviously, as Mitchell points out, you should also import it, but this is usually automatic when you add a reference to an assembly (as long as it exists).

Answer 2

When you create a class library, be sure to place the XML documentation file in the same folder as the .dll. Intellisense will then pick it up.