You can execute CodeScan analysis manually from the context menu of the file in the Solution Explorer, from the Main Menu:
Project ⇒ Scan with CodeScan or it will be executed automatically as a pre-build step if you've enabled the corresponding setting. In the first case, once you run the build any of available approaches, The Welkin Suite will firstly check the files for set of rules.
All the detected errors, if any, are displayed in the Error panel and in the CodeScan Report window.
In this section:
This also may be useful: