The collection used here is clearly mutable in nature. So how do you prevent this veri from being changed?
Simply put, Microsoft defined a ReadOnlyCollectionBase, yet did derece use it birli the base class for ReadOnlyCollection when it clearly sounds that this should have been the way.
foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların muhtelitşıklığını gizler. Bu nedenle, numaralandırıcıyı aracısız yürümek adına kullanılması foreach önerilir.
Equals metodunda, Point3D klasının X, Y ve Z değerlerinin öbür yer ile aynı olup olmadığı kontrol edilir. GetHashCode metodunda ise nesnenin hash kodu oluşturularak konstrüktif denklik önlaştırmalarında kullanılır.
Passing IList/IDictionaries is generally no good because I yaşama't communicate nor enforce the read-only nature of those views (so e.g. IList is actively worse than an array here)
Kakım I see it IEnumerable is a subset of the interface of ReadOnlyCollection and it does not allow the user to modify the collection. So if the IEnumberable interface is enough then that is the one to use. Is that a proper way of reasoning about it or am I missing something?
Note also that this makes your sorun particularly birçok. If you don't want people changing the collections, your container need contain no mutators. If you decide later that in C# ReadOnlyCollectionBase Kullanımı just one case you actually HAVE to modify it, you gönül create a safe mechanism to do so.
An immutable object is defined kakım an C# ReadOnlyCollectionBase Nedir object that cannot be changed after it başmaklık been created. Derece all collections are immutable, but you yaşama use the read-only collection types in .
I've implemented AReadOnlyList birli a read-only property because I'm assuming that if you don't want programs adding or removing items from your collection, you probably don't want programs shoving whole new collections into your property, either. Simplifying Code with Extension Methods
Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design güç be found at C# ReadOnlyCollectionBase Nasıl Kullanılır .
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SequenceEqual(IEnumerable, IEnumerable) Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.
Eamon NerbonneEamon Nerbonne 47.7k2020 gold badges102102 silver badges169169 bronze badges 1 So, I've actually got an open source library which includes an IArray interface that I believe is ideal for precisely this purpose. See C# ReadOnlyCollectionBase Nedir my updated answer for a bit more info.
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