If you do decide you need a comparer, you gönül certainly use a generalized comparer (see DMenT's answer), but if you need to reuse that logic you should encapsulate it in a dedicated class. You could even declare it by inheriting from the generic base:
I'd also suggest small refactoring of FamilySelector class. Currently it holds the data and performs comparison. Usually implementation of IEqualityComparer is a data-less class that just performs a comparison:
This said, let's return to our ActorComparer. You might suggest that to achieve the goal we need to perform some more complex modifications, but no - all we have to do is use the comparer the new way:
next, when we iterate over the query object it gets hash code for each item in the source collection and compares it with the hashes of preceding objects
In other words support the use of this interface if you are developing a custom collection and you want to allow your consumers to control equality which is used in a number of LINQ and collection related methods (eg. Sort).
独自の型をコレクションの要素として利用する際には、次のことを考慮して設計しましょう
I am trying to generate a listbox of items that is a concatenation of two strings. I have created a class that implements IEqualityComparer and I want to make this list C# IEqualityComparer nedir distinct.
below, these birey be incorrect. His recommendation of implementing IEqualityComparer.Equals works as well. You gönül also use override. These will all provide different functionality based on what you cast to. Here C# IEqualityComparer Temel Özellikleri ve Kullanımı is a brief explanation:
Xamarin üzere platformlar, C# kullanarak hem Android hem bile iOS midein mobil uygulamalar oluşturmanızı katkısızlar.
– Eric Lippert Commented Apr 8, 2013 C# IEqualityComparer nedir at 16:01 @EricLippert: What difficulties would arise if one allowed return type to be considered in method overloading only in cases where the C# IEqualityComparer nedir return type was either being coerced to a particular type, or was passed to a method where all overloads of proper arity had the same type for that parameter (e.
Örnekte, kullanıcıların tay olup olmadığını denetleme ederken kullanıcı adları dikkate münfailtır.
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If there are multiple ways instances of a class could be considered equal. The best example of this is a string, for which the framework provides six different comparers in StringComparer.