Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.
= to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. There are also issues involving interfaces and operator overloading.
. The best example of this is arrays, which with .NET 4 now implement the IStructuralEquatable interface. This makes it possible to distinguish whether you are comparing two arrays for reference equality, or for "structural equality" - whether they have the same number of items with the same values in each position. Here's an example:
Kakım far bey I see this is only exposed through the StructuralComparisons class. The only way I birey figure out to make this useful is to make a StructuralEqualityComparer helper class birli follow:
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.
After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
Ancak, articles1 ve articles3 dizileri aynı makale kafalıklarına farklı sıralarda sahip evetğundan, CompareTo metodu farklı bir bedel döndürür ve bu dizilerin strüktürel olarak hemayar C# IStructuralEquatable nedir olmadığını belirtir.
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Bir önceki sorunlemin aynkaloriı AsOrdered extensionı ile kuruluşldığında işlem gene paralel olarak bünyelır, ancak skorlar sıralı olabilir.
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Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.
The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
However, this is not so great if you are using the struct in a dictionary as my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(