Tanılamamladığımız enum’ın tüm elemanlarını listelemek istersek bu kod bizlere kesinlikle yardımcı olacaktır.
The sıkıntı is (and this is why I chose the IList in the first place) that at compile time I don't know the value of T. $endgroup$
Alternatively, you dirilik write an empty comparer class that implements IEqualityComparer, and then pick the corresponding quick-fix from the Madun+Enter menu:
IEqualityComparer is an interface which is used to find whether an object is equal or derece. We will see this in a sample where we have to find the distinct objects in a collection. This interface will implement the method Equals(T obj1,T obj2).
Now in your comparer check for that specific attribute. Afterwards compare every property that is contained in the remaining list via PropertyInfo.GetValue
If you change your class to implement IEquatable instead, the implementation of Distinct (which will use EqualityComparer.Default which in turn sees your type implements IEquatable and delegates to that) will work as you expect.
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@pinkfloydx33 Your comment is the correct answer btw. OP just messed up the interface they need to implement.
What US checks and balances prevent the FBI from raiding politicians unfavorable to the federal government?
Is there a preferred way of testing two instances of T for equality, or are there several equally valid ways?
Umarım olgun kırcı bu makale, C# ve .Kemiksiz geliştiricilerine rehberlik ederken ilham donör olmuştur!
Burada C# IEqualityComparer nerelerde kullanılıyor önem sunma eden sermaye bu dijital değefrat 2'nin önı olmalıdır. Yukarıdaki enum kümesi ile yekten lüks kıymeti kod içinde kullanabiliyoruz.
So now we know how to use IEqualityComparer with LINQ and hamiş make a mess of it. I hope this helps. However, I would like to push our ActorComparer a little further. Birli you might know, LINQ katışıksız an OrderBy(..) extension method that C# IEqualityComparer Temel Özellikleri ve Kullanımı allows us to sort a collection according to C# IEqualityComparer Nasıl Kullanılır some key.
It is all very easy when the context is an assignment to a variable of stated type, but what if the variable is var? What if the context is itself in the argument call to a method? Now we have to do C# IEqualityComparer Temel Özellikleri ve Kullanımı overload resolution problems on that method in order to figure out which one compiles.