Inspectopedia 2025.2 Help

RoslynAnalyzers Validate arguments of public methods

An externally visible method dereferences one of its reference arguments without verifying whether that argument is 'null' ('Nothing' in Visual Basic). All reference arguments that are passed to externally visible methods should be checked against 'null'. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. If the method is designed to be called only by known assemblies, you should make the method internal.

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

CA1062
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | C# | Roslyn Analyzers

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection CA1062

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Inspection Details

By default bundled with:

JetBrains Rider 2025.2, Qodana for .NET 2025.2,

Last modified: 18 September 2025