I have a set of rules defined for Visual Studio Code Analysis and I also configured them in Sonar (http://www.sonarqube.org/). I get different results.
Why?
Code Analysis uses FxCop ? In Sonar I can configure FxCop.
Well, the reason is simple: these are different tools, with different features and capabilities...
In SonarQube, you can configure the quality profile (= rule set) that you want to apply on your project when you analyse it. This rule set is probably very different from the one available in Visual Studio Code Analysis.