Hidden severity rules that are enabled by default differ from disabled or None severity rules in certain aspects. For information about these code fixes, see Common Quick Actions. Code fixes are shown in the light bulb icon menu along with other types of Quick Actions. Many analyzer rules, or diagnostics, have one or more associated code fixes that you can apply to correct the rule violation. The following screenshot shows the same three violations as they appear in the Error List: The following image shows three violations-one error (red squiggle), one warning (green squiggle), and one suggestion (three grey dots): Analyzer violations also show up in the code editor as squiggles under the offending code. The analyzer violations reported in the error list match the severity level setting of the rule. Rule violations found by the analyzer appear in the code editor (as a squiggle under the offending code) and in the Error List window by analyzer. To determine what the default value for a rule is, look in the Properties window.Ĭorresponds to the default severity of the rule. The diagnostic is reported to the IDE diagnostic engine, however.Ĭorresponds to the default severity of the rule. Offending code is underlined with a gray squiggle and marked by a small gray box in the scroll bar.

Violations appear as Messages in the Error List, and not at all in command-line build output. Offending code is underlined with a green squiggle and marked by a small green box in the scroll bar. Violations appear as Warnings in the Error List and in command-line build output, but don't cause builds to fail.

Offending code is underlined with a red squiggle and marked by a small red box in the scroll bar.

Violations appear as Errors in the Error List and in command-line build output, and cause builds to fail. The following table shows the different severity options: Severity (Solution Explorer)

Starting in Visual Studio 2019 version 16.3, you can configure the severity of analyzer rules, or diagnostics, in an EditorConfig file, from the light bulb menu, and the error list. This article covers setting analyzer severities and suppressing analyzer violations. Applies to: Visual Studio Visual Studio for Mac Visual Studio CodeĮach Roslyn analyzer diagnostic or rule has a default severity and suppression state that can be overwritten and customized for your project.

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