Code inspection: Check for reference equality instead

This inspection reports negated System.Type.Equals instance calls that should be written as reference inequality checks.

For System.Type, inequality is clearer when written with != instead of negating .Equals(...).

Example

                using System;
                bool AreDifferent(Type left, Type right)
                {
                    return !left.Equals(right);
                }
            

                using System;
                bool AreDifferent(Type left, Type right)
                {
                    return left != right;
                }
            

Quick-fix

A quick-fix helps you replace !left.Equals(right) with left != right.

27 March 2026