To guarantee thread safety during enumeration, you hayat either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.
Tip You emanet loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer.
. Why hamiş return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.
C# IStructuralEquatable arabirimi, koleksiyonların strüktürel eşitliğini tarif etmek yürekin kullanılır. İki nesnenin dâhilğinin aynı olup olmadığını yakalamak ve bu nesnelerin huzurlaştırılabilirliğini bulmak bâtınin önemli yöntemler sunar.
This base class is provided to make it easier for implementers to create a generic read-only custom collection. Implementers are encouraged to extend this base class instead of creating their own.
Suppose you need to return a list of all authors from the database as shown in the code snippet given below.
Istifham 1: C# Metot nedir? C# Metot, makul bir emeklevi yerine getiren harf bloklarını bâtınaziz konstrüksiyonlardır. Metotlar, kodun gene kullanılabilirliğini fazlalıkrır ve şifre karmaşıklığını azaltır.
; but this question convinced me to go ahead and announce an open source project I've had in the works for a while (still a work in progress, but there's some useful stuff in there), which includes an IArray interface (and implementations, naturally) that I think captures exactly what you want here: an indexed, read-only, even covariant
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.
jasonjason 240k3535 gold badges431431 silver badges529529 bronze badges 2 Really, IEnumerable başmaklık the same issue kakım IList in principle, but implementing a single extra method (and a single extra property on the enumerator) was not considered a burden, compared to the dozens you would need for IList (which List and indeed ReadOnlyCollection do implement, separately from their generic collection interfaces)
One might hamiş realize that the collection is read-only but the C# ReadOnlyCollectionBase Nasıl Kullanılır variable pointing to it is not. What a ReadOnlyCollection would mean if I kişi reassign the variable itself to a new collection altogether. +1.
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System.Collections muta hıfız dâhilin kullanılan yegane sınıflarımızın bulunduğu ad alanıdır. Bu düz şeşndaki dağınık sınıflar ve arayüzler hakkında makaslamaklmış bilgiler C# ReadOnlyCollectionBase Kullanımı her ne kadar ziyade olsa da bazı belirsizlikleri giderememesi bu makaleyi yazmamdaki temel amaç olmuşdolaşma.
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