Code inspection: Lambda expression/anonymous method can be made 'static'

This inspection reports a lambda expression that does not capture anything from the enclosing scope and can therefore be marked static. Making such lambdas static documents that they are capture-free and prevents accidental captures later.

Example

                Action<int> log = (int p) =>
                {
                    Console.WriteLine(p);
                };
            

                Action<int> log = static (int p) =>
                {
                    Console.WriteLine(p);
                };
            

Quick-fix

Add the static modifier to the lambda expression.

30 March 2026