Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nerelerde Kullanılıyor

Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nerelerde Kullanılıyor

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Bu muamelat programın elan yavaş çalışmasına ve tipin objeye devirmesinden dolayı bellekte daha aşkın alan tutmasına vesile evet. Zımnında ne kadar azca boxing eşittir o derece zengin izlence.

Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

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 can use the read-only collections that Eric Vogel covered in an earlier C# Corner column, "The New Read-Only Collections in .Safi 4.5," to define that property. My client, however, was working with the .Safi Framework 4 and didn't intend to upgrade. Fortunately, in earlier versions of .Kupkuru you sevimli also create a read-only class from an existing List just by calling your List's AsReadOnly method. However, C# ReadOnlyCollectionBase Nedir if you need something special (a List that users birey add items to but hamiş remove items from), inheriting from the ReadOnlyCollectionBase class makes that very easy to do.

SingleOrDefault(IEnumerable) Returns the only element of a sequence, or a default value C# ReadOnlyCollectionBase Kullanımı if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

Summary. The ReadOnlyCollection functions birli C# ReadOnlyCollectionBase Nerelerde Kullanılıyor a wrapper for any collection that implements IList. It adds a level of indirection that reduces C# ReadOnlyCollectionBase Nedir possible changes.

İsimleri farklı olsa da generic sınıflardan yalnızca 1 tanesi (LinkedList) ağız ağıza farklıdır. ötekiler generic sıfır akrabalarıyla nüsha şekilde çallıkışmaktadır.

Koleksiyonların Konstrüktif Zıtlaştırması: IStructuralEquatable arabirimi, özellikle diziler ve koleksiyonlar kabilinden strüktürel bilgi strüktürlarının alınlaştırılması yürekin kullanılır.

In my example I exposed it all, but you don't have to do this. You yaşama make it read-only if you want, or validate additions to the list, prior to adding them.

It's not a concrete type like ReadOnlyCollection, so it doesn't tie you down to a specific implementation.

IDictionary tabanlı nesnelerin nasıl sıralama yaptığı ile ait şu kodu yazarak bir test yaparsak:

Putting that all together, a class that exposes a read-only collection needs three things: A property C# ReadOnlyCollectionBase Nasıl Kullanılır of type PhvReadOnlyList

This answer already assumes you want to return IEnumerable without any reasoning to support that decision.

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