En Kuralları Of C# IEqualityComparer Kullanımı
En Kuralları Of C# IEqualityComparer Kullanımı
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The comparer doesn't handle Dictionary, since you're only looking for IList; if you started looking for IEnumerable (and added a special case for KeyValuePair) it would handle dictionaries kakım well
If you're hamiş assigning to anything, you'll need to. Distinct() returns an IEnumerable rather than doing an in place update
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
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After inspecting multiple SO questions and answers related to the topic birli well as some other articles I have both found the solution that fitted my needs for the moment and got some understanding of the way IEqualityComparer is actually used by LINQ operators. Here I will try C# IEqualityComparer Nasıl Kullanılır to explain what I got from there.
You will need some properties that will allways be available on your type and that provide a good enough idea of what might be considered equal. All theadditional properties however should only go into the expensive Equals-method.
– Eric C# IEqualityComparer nerelerde kullanılıyor Lippert Commented Apr 8, 2013 at 16:01 @EricLippert: What difficulties would arise if one allowed return type to C# IEqualityComparer nerelerde kullanılıyor be considered in method overloading only in cases where the return type was either being coerced to C# IEqualityComparer Temel Özellikleri ve Kullanımı a particular type, or was passed to a method where all overloads of proper arity had the same type for that parameter (e.
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If the code is so hard to analyze that you have to write a backtracking algorithm to get it right, odds are good that the code should be written more clearly in the first place. If the compiler yaşama't make sense of it without backtracking, neither hayat the human reader.
Or if you need C# IEqualityComparer nerelerde kullanılıyor to change how the comparer sorts, that you have to change them all? Lets say you do that comparison in 500 places, some in 3rd party code, now you have a maintenance nightmare.