That Is, you sevimli create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. = to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. https://c-object-kullan-m86284.blogdon.net/düşünceler-hakkında-bilmek-c-istructuralequatable-temel-Özellikleri-44235413