C# IEqualityComparer Kullanımı Aptallar için
C# IEqualityComparer Kullanımı Aptallar için
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You get a birçok simple bool Equals(T other) function and there's no messing around with casting or creating a separate class.
This transformation allows for faster comparison of elements during look-up, because the elements of the second grup are easier to compare and because there are fewer of them. Still, due to this same reason any hash function might eventually produce equal codes for non equal objects
If you don't specify this, the compiler infers the type of T to be BaseClass since BaseClassComparer implements IEqualityComparer.
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ArgumentException özelliği bir değere ayarlanır, fakat muhtelit tablosu ve kullanılarak IHashCodeProviderICompareroluşturulmuştur.
in the constructor, there is no point to store properties in this case at all and you gönül avoid executing reflection and linq again and again for each GetValueProperties call.
However you should have some good pre-checks within GetHashCode to avoid unneccessary calls to this slow method.
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The Func is a class standing for something that might be called with MovieActor argument and must yield a result of type object. Although generally I don't like dealing with pure object's in my code, this is a valid way to define a key selector not bounding it to some specific key type.
When we make the inference from the comparer we say "IEqualityComparer is contravariant in T, so we emanet accept BaseClass or any smaller type
It looks like the generic version of this interface performs C# IEqualityComparer nerelerde kullanılıyor the same function but is used for Dictionary) collections.
1 shouldn't this yapan if collections contains a null? however quick experiment on VS C# Interactive doesn't seem to throw null ref exception!
If there are multiple ways instances of a class could C# IEqualityComparer nedir be considered equal. The best example of this is a string, for which the framework provides six different comparers C# IEqualityComparer Kullanımı in StringComparer.