T türü iki arabirimi de uygulamazsa varsayılan hakkındalaştırıcı yoktur ve bir kontralaştırıcı veya muhaliflaştırma temsilcisi ayança sağlamlanmalıdır.
Note that IEqualityComparer may (and should) be used to perform more complex comparisons, however its implementation won't get much more complex in most cases.
1 Foo should be immutable if you intend to use it kakım key in hash tables. An in that case new properties needs to be takım using the ctor's paramsters, and anyone doing so would see that your test for the Comparer no longer compiles.
Gine ilk yöntemde yapmış olduğumız resmin konumlandırılması emeklemini SizeMode özelliğini kullanarak kodla yapabilirsiniz.
Your GetHashCode implementation always returns the same value. Distinct relies on a good hash function to work efficiently because it internally builds a hash table.
in the constructor, there is no point to store properties in this case at all and you birey avoid executing reflection and linq again and again C# IEqualityComparer Temel Özellikleri ve Kullanımı for each GetValueProperties call.
However you should have some good pre-checks within GetHashCode to avoid unneccessary calls to this slow method.
In the plain case, when we need to drop only exact duplicates, the simple Distinct() call will do. The simplest possible example is getting unique integers from a collection of numbers:
What US checks and balances prevent the FBI C# IEqualityComparer Temel Özellikleri ve Kullanımı from raiding politicians unfavorable to the federal government?
Comparer name prefix — allows you to specify a prefix that will C# IEqualityComparer Kullanımı be used in the name of the generated comparer class.
The instructions and examples C# IEqualityComparer nedir given here address the use of the feature in C#. For more information C# IEqualityComparer Nasıl Kullanılır about other languages, refer to corresponding topics in the ReSharper by language section.
Kakım a matter of style, we could encapsulate the equality comparer in our Player class and expose the IEqualityComparer through a static property.
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When implementing interfaces of classes it is important to read the documentation, to know which contract you’re supposed to implement.1