C# ReadOnlyCollectionBase Nerelerde Kullanılıyor - Genel Bakış

C# ReadOnlyCollectionBase Nerelerde Kullanılıyor - Genel Bakış

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The collection used here is clearly mutable in nature. So how do you prevent this veri from being changed?

In EF Core, you emanet encapsulate collections and achieve true domain modeling by using backing fields.

1 Kakım long bey WritableMyItem is made private, as @KlausGütter suggested, this solution seems to work great. The other mesele I thought I would face is if the IReadOnlyList is casted into a IList, but since IList's type parameter is hamiş covariant, I don't think this is possible. Thank you!

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

Well, there is a way. It ain't pretty kakım it adds extra stuff on your domain sistem, but I just checked and it works.

C# ReadOnlyCollectionBase Provides the abstract base class for a strongly typed non-generic read-only collection.

public IEnumerable Employees => EmployeesInternal.Skip(0); // this is property accessor that will C# ReadOnlyCollectionBase Kullanımı be used to define prototip and/or in `Include` C# ReadOnlyCollectionBase Nerelerde Kullanılıyor statements, could be marked kakım internal if your domain/persistance/services are in the same assembly

; 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

Note that the IReadOnlyList interface works similarly to List and in fact yaşama be used in place of List when you want the elements of the list to be read-only. We will illustrate this with an example in the next section.

So when i have this piece of code what is the easiest or C# ReadOnlyCollectionBase Kullanımı best way to make it a read only collection?

Single(IEnumerable) Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

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

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So, C# ReadOnlyCollectionBase Nerelerde Kullanılıyor you yaşama define your collection birli a private field and expose it kakım a public readonly property like below bey _parents