Düşünceler Hakkında Bilmek C# ReadOnlyCollectionBase Nedir

Düşünceler Hakkında Bilmek C# ReadOnlyCollectionBase Nedir

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

Is there any reason to expose an internal collection bey a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?

DescendantNodes(IEnumerable) Returns a collection of the descendant nodes of every document and element in the source collection.

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

Passing IList/IDictionaries is generally no good because I hayat't communicate nor enforce the read-only nature of those views (so e.g. IList is actively worse than an array here)

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.

Thous leads that your consumer classes are C# ReadOnlyCollectionBase Kullanımı just awaiting interfaces instead of concrete classes and so you dirilik change the concrete implementation at a later stage without breaking your public contract (due to performance reasons use an List instead of a LinkedList or vice versa).

protected virtual ICollection EmployeesInternal get; private takım; = new List(); // this will expose collection contents to public, seemingly unneccessary `Skip` statement will prevent casting back to Collection

Public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are derece guaranteed to be thread safe.

If you do this then there's nothing stopping your callers casting the IEnumerable back to ICollection and then modifying it. ReadOnlyCollection removes this possibility, although C# ReadOnlyCollectionBase Nerelerde Kullanılıyor it's still possible to access the underlying writable collection via reflection.

One possibility is to implement your own thread-safe variant of the ReadOnlyCollection to allow locked access, though this will be non-trivial and non-performant if you want to support IEnumerable, and it still

Note: The StringBuilder references themselves are read-only, but the memory pointed to by the C# ReadOnlyCollectionBase Temel Özellikleri references are still mutable.

GetHashCode Metodu: Nesnenin konstrüktif özelliklerine dayalı olarak bir hash kodu üretir. Bu, koleksiyonların hızlı bir şekilde karşılaştırılmasını katkısızlar.

I C# ReadOnlyCollectionBase Temel Özellikleri have a readOnlyCollection of ModuleViewModel, I want to retrieve with linq a specific ModuleViewModel containing in my collection. Here the declaration C# ReadOnlyCollectionBase Nasıl Kullanılır of my collection :