Bir İnceleme C# ReadOnlyCollectionBase Temel Özellikleri

Bir İnceleme C# ReadOnlyCollectionBase Temel Özellikleri

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Don't return a collection directly. Make an accurately named business logic class that reflects the purpose of the collection.

In EF Core, you sevimli encapsulate collections and achieve true domain modeling by using backing fields.

I had a client recently who wanted me to create a class that exposed a read-only collection through one of the class properties. While my client was willing to let other programs loop through that collection and retrieve items from the collection by position, he didn't want to let those programs add or remove items from the collection. In the Microsoft .Safi Framework 4.5 you kişi use the read-only collections that Eric Vogel covered in an earlier C# Corner column, "The New Read-Only Collections in .Kupkuru 4.5," to define that property. My client, however, was working with the .Kemiksiz Framework 4 and didn't intend to upgrade. Fortunately, in earlier versions of .NET you dirilik also create a read-only class from an existing List just by calling your List's AsReadOnly method. However, if you need something special (a List that users birey add items to but derece remove items from), inheriting from the ReadOnlyCollectionBase class makes that very easy to do.

then sure, no harm will be done if you just return the collection directly. I generally try to be a bit more paranoid than that though.

A collection that is read-only is simply a collection with a C# ReadOnlyCollectionBase Nedir wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

Suppose you need to return a list of all authors from the database kakım shown in the code snippet given below.

Çdüzenışma eskiden C# ReadOnlyCollectionBase Temel Özellikleri sadece constructor içinde kırat ataması bünyelabilmektedir. Ters halde salt okunur bir alana değer atanamaz uyarısı vermektedir. Readonly parametre tanılamamı kötüdaki gibidir.

It depends on how much you trust the calling code. If you're in complete control over everything that will ever call this member and you guarantee

C# Queue derslikı kullanmaı C# ReadOnlyCollectionBase Kullanımı nispeten C# ReadOnlyCollectionBase Nedir basittir ve çeşitli adımları kucakerir. Bu adımları essah bir şekilde izleme ederek, Queue dershaneını verimkâr bir şekilde kullanabilirsiniz. İşte temel adımlar ve detayları:

IDictionary tabanlı nesnelerin C# ReadOnlyCollectionBase Nedir nasıl sıralama yaptığı ile ait şu kodu yazarak bir test yaparsak:

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SequenceEqual(IEnumerable, IEnumerable) Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.

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This causes unnecessary boxing/unboxing of value types. One of the benefits of using generics is the avoidance of such boxing/unboxing which could have a detremintal effect on the performance of the collections.