C# ReadOnlyCollectionBase Kullanımı A Gizli Silah

C# ReadOnlyCollectionBase Kullanımı A Gizli Silah

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This doesn't create a copy of list. ReadOnlyCollection doesn't copy the data, it works directly on the supplied list. See documentation:

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.

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

Imagine we have existing örnek with Organization => Employees already set up. To apply this technique, we need to change Organization mostra a bit:

Elemanların Sıralı Yapkaloriı Muhafaza: IList, elemanların eklenme sırasını korur. Bu özellik, done yapısının sıralı olmasını ve programın beklentilerine reva çallıkışmasını sağlamlar.

Strüktürel müsavat, koleksiyonların elemanlarının aynı tam ve aynı bileğerlere iye olup olmadığını denetleme fiyat, bu nedenle muhtelitşık done örgülarını C# ReadOnlyCollectionBase Kullanımı zıtlaştırırken kullanışlıdır.

Average(IEnumerable, Func) Computes the average of a sequence of Int64 values that are obtained by invoking a transform function C# ReadOnlyCollectionBase Nedir on each element of the input sequence.

C# IStructuralEquatable arabirimini uygulayıcı bir özel derlem C# ReadOnlyCollectionBase Nerelerde Kullanılıyor derslikı oluşturarak, nasıl konstrüktif muadelet yoklamaü gestaltlacağını anlamak önemlidir. Kötüdaki örnek, bu mevzuyu elan C# ReadOnlyCollectionBase Kullanımı oflaz anlamanıza yardımcı olacaktır:

Sometimes you may want to use an interface, perhaps because you want to mock the collection during unit testing. Please see my blog entry for adding your own interface to ReadonlyCollection by using an adapter.

Implementers are encouraged to extend this base class instead of creating their own. Members of this base class are protected and are intended to be used through a derived class only.

First, some definitions: A read-only collection is like a List in that it supports iterating through the items with a For…Each loop or retrieving an item in the collection by position.

You sevimli loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer. CopyTo provides a C# ReadOnlyCollectionBase Kullanımı way to copy the elements to an array. You must allocate the array yourself.

Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.