Document Your Code with IntelliSense
Over a series of articles about commenting, I discussed why the key issue is to write ROC (Really Obvious Code). If you do, then the only comments you need to provide for your methods should be what parameters the method expects, what your method will do with those parameters, what the method will return, and any side effects of executing the method (e.g., database updates). If you bought into that plan (and some readers did not), then the best place to put that documentation is where Visual Studio will make the best use of it: in IntelliSense, by using XML comments.
To create the structure for your XML comments, click your mouse before your method declaration; then, in Visual Basic, type three apostrophes ('''); in C#, type three forward slashes (///). In either case, Visual Studio will add a framework to hold the comments for your method, for each of the parameters the method accepts, and for your method's return value (if any). All you have to do is type in your content.
Not only will the programmers who work on your code find all the information they need when changing your code, the developers who use your methods will find that IntelliSense delivers your documentation to them when they use your methods.
Posted by Peter Vogel on 01/07/2014