şayet milyonlarca şart üzerinde sorgulama hizmetlemi gestaltyorsak lacerem IQueryable IEnumerable gereğince elan hızlı sorgulama emeklemi yapar.
Bu iki arayüzün yararlanma senaryoları değişikdır ve birbirlerinin adına kullanılmamalıdır. Bu makalede, IEnumerable ve IQueryable arasındaki farkları inceleyeceğiz.
The second method allows only List objects to be passed in; it will not accept an array or a String object. Obviously, the first method is better because it is much more flexible and emanet be used in a much wider range of scenarios.
For example, if you do hamiş need to access items by index, but constantly insert items at the beginning of your collection and then remove items from the end, a Queue would be far more appropriate to use.
C# IEnumerable, IEnumerator Meyan yüzleri ve Tasarrufı alfabesında bahsettiğimiz kadar bir sınıfımızın iterator özelliği kazanabilmesi sinein IEnumerable veya IEnumerable interfacelerini implemente etmesi gerekmektedir.
IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator saf custom enumeration logic.
Collaborate with us on GitHub The source for this content sevimli be found on GitHub, where you dirilik C# IStructuralComparable nedir also create and review issues and pull requests. For more information, see our contributor guide.
Koleksiyonlar Beyninde Gezinmeyi Sağlar: IEnumerable, koleksiyonlar arasında kolayca gezinmenizi katkısızlar. GetEnumerator metodu ile koleksiyonun her bir elemanına C# IStructuralComparable nedir erişebilir ve bu elemanlar üzerinde prosedür yapabilirsiniz.
"These methods that extend IQueryable(Of T) do derece perform any C# IStructuralComparable nedir querying directly. Instead, their functionality is to build an Expression object, which is an expression tree that represents the cumulative query. "'
Using the concept of iterators you sevimli achieve major improvement in algorithm quality, both in terms of speed and memory usage.
" This is false, because the where clause is getting called on an IEnumerable and that only knows how to loop through objects which are already coming from the database. If you made the return of AllSpotted() and the parameters of Feline() and Canine() into IQueryable, then the filter would happen in SQL and this answer would make sense.
IEnumerable is an interface that tells us that we hayat enumerate over a sequence of C# IStructuralComparable nerelerde kullanılıyor T instances. If you need to allow somebody to see and perform some action for each object in a collection, this is adequate.
C# dilinde, IEnumerator özellikle zirdaki gibi koleksiyonlar üzerinde done okuma ve hizmetlemlerinde tercih edilir:
The most important thing to realize is that, using Linq, the query does not get evaluated immediately. It is C# IStructuralComparable nerelerde kullanılıyor only run as part of iterating through the resulting IEnumerable in a foreach - that's what all the weird delegates are doing.