Code Analysis ReferenceAnalyzersRCS1175On this pageRCS1175: Unused 'this' parameterPropertiesPropertyValueDefault SeverityInfoMinimum language version-ExamplesExample #1diagnostic.cspublic static bool Bar(this Foo foo, object parameter){ return parameter != null;}Applies toExtension for VS 2022Extension for VS CodeExtension for Open VSXPackage Roslynator.Analyzers