Code Analysis ReferenceAnalyzersRCS1197On this pageRCS1197: Optimize StringBuilder.Append/AppendLine callPropertiesPropertyValueDefault SeverityInfoMinimum language version-ExamplesExample #1diagnostic.cssb.Append(s + "x");fix.cssb.Append(s).Append("x");Applies toExtension for VS 2022Extension for VS CodeExtension for Open VSXPackage Roslynator.Analyzers