Burada enum kümesinde olmayan bir elemana erişmek isteriz. Runtime da hiç bir mesele gerçekleşemez ve bizlere sayısal değeri yahut olması gereken numerik kıymeti döner , günah olduğunun farkına varmayız. Tekrar de yoklama etmekte fayda var :)
When testing two instances for equality you have to make an explicit choice of which IEqualityComparer instance to use.
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:
CodeFuller's answer will work fine, but bey an alternative option, you could use MoreLINQ and its DistinctBy method, which would avoid you needing to create a separate class at all:
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.
However, like you said in the conclusion, C# IEqualityComparer nerelerde kullanılıyor you hayat achieve the same result with an expression like that:
Koleksiyonlar ekseri bir muadelet karşıtlaştırıcısı ve/yahut bir sıralama hakkındalaştırıcısı kullanır. Karşıtlaştırmalar ciğerin dü yapı kullanılır.
According to the IEqualityComparer code example provided by microsoft, you will want to use the new keyword (so hiding the Equals implementation of the object) for implementing Equals.
Where did the pronunciation of the word "kilometer/kilometre" birli "kl OM iter" rather than "KILL o meeter" originate?
players: khalidabuhakmeh and nicoleabuhakmeh. Our next step is to implement the IEqualityComparer. Let’s first look at the interface itself.
I think the other post you mention is saying that EqualityComparer implements IEqualityComparer and IEqualityComparer, so you don't have to implement both the generic and non-generic interfaces if you derive from EqualityComparer.
The Equals(T, C# IEqualityComparer Kullanımı T) method is reflexive, symmetric, and transitive. That is, it returns true if used to compare an object with itself; true for two objects x and y if it is true for y and x; and true for two objects x and C# IEqualityComparer Kullanımı z if it is true for x and y and also true for y and z.
Equals method instead of the Object.Equals method. but if I look at the implementation, they both use the generic Type:
Important C# IEqualityComparer Nasıl Kullanılır Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or C# IEqualityComparer Temel Özellikleri ve Kullanımı implied, with respect to the information provided here.