Benim C# IStructuralEquatable Nasıl kullanılır Başlarken Çalışmak
Benim C# IStructuralEquatable Nasıl kullanılır Başlarken Çalışmak
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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is not reason enough to approve a correction edit.
Bu tür bir önlaştırma, makale temellıklarının sıralamasının önemli olduğu durumlarda, konstrüktif benzerliklerin yahut değişiklıkların belirlenmesine yardımcı mümkün.
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:
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1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm derece really sure if I really got it.
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.
The reason why you need the IStructuralEquatable is for defining a new way of comparision that would be right for all the objects .
When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable gönül be useful.
C# IStructuralComparable Determines whether the current collection object precedes, occurs in the C# IStructuralEquatable Kullanımı same position as, or follows another object in the sort order.
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
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Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are hamiş mutually exclusive.