En iyi Tarafı C# ReadOnlyCollectionBase Temel Özellikleri

En iyi Tarafı C# ReadOnlyCollectionBase Temel Özellikleri

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Kakım you suggest, my intention is only to protect the collection from direct modification; the collection members are hamiş going to be modified (or needed to be modified).

Bu tür bir huzurlaştırma, makale kellelıklarının sıralamasının önemli başüstüneğu durumlarda, strüktürel benzerliklerin veya farklılıkların belirlenmesine yardımcı olabilir.

You want to use the yield keyword. You loop through the IEnumerable list and return the results with yeild. This allows the consumer to use the for each without modifying the collection.

Note also that this makes your problem particularly nice. If you don't want people changing the collections, your container need contain no mutators. If you decide later that in just one case you actually HAVE to modify it, you güç create a safe mechanism to do so.

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

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.

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

ElementAtOrDefault(IEnumerable, Int32) Returns the element at a specified index in a sequence or a C# ReadOnlyCollectionBase Kullanımı default value if the index is out of range.

SingleOrDefault(IEnumerable, Func) Returns the only element of a sequence that C# ReadOnlyCollectionBase Temel Özellikleri satisfies a specified condition or a default value if no such element exists; this method throws an exception C# ReadOnlyCollectionBase Kullanımı if more than one element satisfies the condition.

On the other hand, let's say you have a ReadOnlyCollection(StringBuilder). This is kind of a strange thing to have, but it is acceptable. You sevimli still change the individual C# ReadOnlyCollectionBase Nasıl Kullanılır StringBuilder objects by accessing their methods.

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