Code inspection: Incorrect usage of the 'ConstantExpected' attribute

This inspection reports incorrect usage of ConstantExpectedAttribute. It appears when the attribute is applied to a parameter type that does not support it, or when its Min and Max boundaries are invalid for that parameter.

Example

                using System.Diagnostics.CodeAnalysis;
                void Print([ConstantExpected] decimal value)
                {
                }
            

                void Print(decimal value)
                {
                }
            

Quick-fix

There is no dedicated quick-fix for this inspection. A typical correction is to remove the attribute or use it only on supported parameter types with valid bounds.

01 April 2026