Hi @bmarcouly - welcome to the community, and apologies for the delay in replying.
- The Sonar C# rules are implemented as Roslyn analyzers, so Visual Studio controls when they are executed (same as for all Roslyn-based analyzers). As a result, I would expect that setting the
Run on buildoption would do what you want. See the Microsoft docs for more information.
Note: you might also need to set the Error List filter to show Build Only. From memory, the default Build + IntelliSense option isn’t a simple aggregation of all issues found at build time with “live” issues
- There are some overlapping rules, so it makes sense to disable one or the other. Controlling which Sonar rules are executed is easy using the Quality Profile. The built-in Microsoft rules can be suppressed in various ways (see the docs). If you want to use a ruleset to disable non-Sonar rules, have a look at this post which describes how to the combine the generated Sonar ruleset with a manual ruleset.