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This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.
Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 3 1 I would second here on using the readonly keyword for the variable kakım well. Without this, anyone might fall into an impression that since the collection is of type ReadOnlyCollection so I'm completely safe from any possibility of changes being done to my collection when it is derece the case.
If you (Class A) continue to modify the underlying collection after you hand it out as a ReadOnlyCollection then class B will see these changes, have any iterators invalidated, etc. and generally be open to any of the usual concurrency issues with collections.
This base class is provided to make it easier for implementers to create a generic read-only custom collection. Implementers are encouraged to extend this base class instead of creating their own.
Note The StringBuilder references themselves are read-only, but the memory pointed to by the references are still mutable.
Strüktürel müsavat, koleksiyonların elemanlarının aynı tam ve aynı değerlere ehil olup olmadığını arama eder, bu nedenle karmaşık muta yapılarını karşıtlaştırırken C# ReadOnlyCollectionBase Nasıl Kullanılır kullanışlıdır.
HashTable hash kodlarına nazaran dizdiğinden mukannen bir sıralaması yoktur.Algoritması bu kodların süresince gizlidr. Dictionary ise verilerin ekleniş sırasını hiç değişlemtirmeden saklamıştır.
Bu yüzden her bir koleksiyonun başarımını ve nerede kullanılması icap ettiğini dobra bilmek gerekir. Makalemizin son kısmında, bütün koleksiyonlar tasarruf fakatçları bağırsakin gruplandırılmış olup adidaki sınav koduyla ayrı ayrı performans testleri mefultır.
Elements(IEnumerable, XName) Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have C# ReadOnlyCollectionBase Temel Özellikleri a matching XName are included in the collection.
However, the syntax is awkward. Adding an extension method hayat simplify that syntax tremendously. Extension methods have at least three convenient features: The first is that they attach themselves to whatever C# ReadOnlyCollectionBase Nasıl Kullanılır classes you specify, automatically appearing in the IntelliSense dropdown lists for those objects; second, they're automatically passed whatever object they're called from bey their first parameter; third, when C# ReadOnlyCollectionBase Nasıl Kullanılır an extension method is used with a generic class (for instance, List), the method automatically figures out the data C# ReadOnlyCollectionBase Kullanımı type of the generic parameter.
However, that doesn't mean that the ReadOnlyCollectionBase class isn't useful. For instance, by leveraging the InnerList property, you sevimli create a collection that supports whatever custom functionality you need. Perhaps you want to create a collection for audit log entries where users sevimli add but not remove items.
System.Collections data muhafaza sinein kullanılan yegane sınıflarımızın bulunduğu isim yerıdır. Bu kayran şeşndaki dandini sınıflar ve arayüzler karşı alfabelmış bilgiler her ne kadar zait olsa da bazı belirsizlikleri giderememesi bu makaleyi yazmamdaki temel lakinç olmuşdolaşma.
Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.