Greatest Kılavuzu C# ReadOnlyCollectionBase Temel Özellikleri için

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You've probably identified what pattern the PhvReadOnlyList implements: it's a wrapper. In the .Kemiksiz Framework 4.0 or earlier, the wrapper class that you'd really use to create a read-only list would be the .NET ReadOnlyCollectionBase class. Birli with my example, you use the ReadOnlyCollectionBase class to create your own class with whatever functionality you need -- but you don't need to write the GetEnumerator method or create your own UnderlyingList because the ReadOnlyCollectionBase handles both.

In programs, an immutable collection hayat be used with less copying—we do derece need to worry about it being modified. This güç make programs simpler and easier to reason about.

foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların karmaşıklığını gizler. Bu nedenle, numaralandırıcıyı aracısız gitmek namına kullanılması foreach önerilir.

Bey the last point states, you shouldn't avoid ReadOnlyCollection like you were suggesting. It is a very useful type to use for public members to inform the consumer of the limitations of the collection they are accessing.

Now when you use IntelliSense to inspect IReadOnlyList, you’ll no longer see Add among the supported methods. Figure 2 below displays the members of the IReadOnlyList instance.

The single line of code required by my extension method just instantiates my PhvReadOnly class (using the datatype that the extension C# ReadOnlyCollectionBase Nerelerde Kullanılıyor method katışıksız deduced), passing whatever IList object the extension method is being used on.

4) If you suddenly realise that your collection of choice is inefficient, you dirilik change the underlying collection type without having to go and change all the places C# ReadOnlyCollectionBase Nerelerde Kullanılıyor where it got passed birli a parameter (dirilik you imagine the trouble you might have with, C# ReadOnlyCollectionBase Temel Özellikleri say, List?)

Sonuç olarak System.Collections insan kayranı altında zıtmıza 7 pare non-generic ve 7 adette generic derslik çıkmaktadır. Cins önemli olan yakın sınıfı haklı yerde kullanmaktır.

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

If you do this then there's nothing stopping your callers casting the IEnumerable back to ICollection and then modifying it. ReadOnlyCollection removes this possibility, although it's still possible to access the underlying writable collection via reflection.

Descendants(IEnumerable) Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

C# Metot niye kullanılır? C# Metotlar, bir izlence süresince yeniden gene kullanılması müstelzim harf bloklarını gruplandırmak C# ReadOnlyCollectionBase Nedir ve elan sonra almak ciğerin kullanılır. Facebook Twitter Whatsapp Tumbler Pinterest

Does this double well potential contradict the fact that there is no degeneracy for one-dimensional bound states?

One should note that aku's answer will only protect the list as being read only. Elements in the list are still very C# ReadOnlyCollectionBase Kullanımı writable.