C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Aptallar için

C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Aptallar için

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Dictionary sınıfı gene eklendiği sırayı bozmadan belleğe almıştır. HashTable ise önce string anahtarları sonra, diğer anahtarları hash algoritmasına göre sıralamıştır.

Tip You dirilik loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer.

. Why derece return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.

Elements(IEnumerable) Returns a collection of the child elements of every element and document in the source collection.

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

If your only intent is to get calling code to hamiş make a mistake, and modify the collection when it should only be reading all that C# ReadOnlyCollectionBase Nasıl Kullanılır is necessary is to return an interface which doesn't support Add, Remove, etc.

An immutable object is defined bey an object that cannot be changed after it has been created. Not all collections are immutable, but you C# ReadOnlyCollectionBase Nedir kişi use the read-only collection types in .

Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Double 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 C# ReadOnlyCollectionBase Nasıl Kullanılır casting the IEnumerable back to ICollection and then modifying it. ReadOnlyCollection removes this possibility, although it's still possible to access the underlying C# ReadOnlyCollectionBase Nerelerde Kullanılıyor writable collection via reflection.

However, if you want to access the elements of the IEnumerable collection by index or you want to retrieve the number of elements in the collection, you should use IReadOnlyList bey shown C# ReadOnlyCollectionBase Temel Özellikleri below.

This implementation does hamiş provide a synchronized (thread safe) wrapper for a ReadOnlyCollectionBase, but derived classes can create their own synchronized versions of the ReadOnlyCollectionBase using the SyncRoot property.

GetHashCode Metodu: Nesnenin strüktürel özelliklerine dayalı olarak bir hash kodu üretir. Bu, koleksiyonların hızlı bir şekilde zıtlaştırılmasını esenlar.

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.