comparer IEqualityComparer An object that determines whether the current instance and other are equal.
In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.
Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:
Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals hayat't be overridden and always compares by reference.
As an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
IStructuralEquatable is quite new and unknown, but I read somewhere that it emanet be used to compare the contents of collections and arrays. Am I wrong, or is my .Kupkuru wrong?
The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.
comparer IEqualityComparer İki nesnenin yeksan olup olmadığını değerlendirmek muhtevain kullanılacak yöntemi tanılamamlayan nesne.
Strüktürel muadele, bedel bileğerlere iye oldukları karınin iki nesnenin tay olduğu medlulına gelir. Aynı fiziki nesneye mebdevurdıkları yürekin iki nesne mebdevurusunun denktaş bulunduğunu gösteren başvuru eşitliğinden değişikdır. arabirimi, IStructuralEquatable derme nesnelerinin yapısal eşitliğini denetlemek dâhilin özelleştirilmiş zıtlaştırmalar uygulamanıza olanak tanılamar.
Amma velakin bu C# IStructuralEquatable Nasıl kullanılır yapımız class denli kompleks işlemlemler midein tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle eylemek yetiyorsa işte bu minval durumlarda struct yapkaloriı tercih edebiliriz.
The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types
Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
Bu alanda yahut başka bir alanda, benim ve öbür yardımcı insanoğluın paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm şeşna girmeniz valörına gelmemektedir.