Temel İlkeleri C# ReadOnlyCollectionBase Nasıl Kullanılır

Temel İlkeleri C# ReadOnlyCollectionBase Nasıl Kullanılır

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IStructuralComparable arayüzü, çoklukla Array ve Tuple üzere data dokumaları aracılığıyla uygulanır. Bu data dokumaları, elemanlarının sıralamasını ve yapısını dikkate alarak huzurlaştırma yapar.

This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.

Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 3 1 I would second here on using the readonly keyword for the variable bey well. Without this, anyone might fall into an impression that since the collection is of type ReadOnlyCollection so I'm completely safe from any possibility of changes being done to my collection when it is hamiş the case.

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

Distinct(IEnumerable) Returns distinct elements from a sequence by using the default equality comparer to compare values.

Matthew WatsonMatthew Watson 108k1111 gold badges170170 silver badges290290 bronze badges 2 2 To avoid that a client gets a writable object by downcasting, C# ReadOnlyCollectionBase Temel Özellikleri WritableMyItem (and IWritableMyItem if used) could be made private or internal.

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

Finally, the code example creates an array larger than the collection and uses the CopyTo method to insert the elements of the collection into the middle of the array.

Movie about a planet where seeds must be harvested just right in C# ReadOnlyCollectionBase Nerelerde Kullanılıyor order to liberate a valuable crystal within

When you write a For…Each loop to use with a collection, the compiler checks the collection class to see if it implements the IEnumerable interface (or the generic version of that interface, IEnumerable). If the class C# ReadOnlyCollectionBase Nerelerde Kullanılıyor does implement that interface, then the compiler calls the single method that the interface forces the class to have: the GetEnumerator method.

Enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads kişi still modify the collection, which causes the enumerator to throw an exception.

The IEnumerable interface is yet another interface used often to represent read-only collections of data. If you simply want to enumerate the elements of C# ReadOnlyCollectionBase Temel Özellikleri a collection, you birey use IEnumerable as shown below.

A method like PayUnpaidInvoices being present may lead to second guessings about what "regular" collection methods like Remove and Clear might do. Will it just remove invoices from the in-memory collection, or will it delete them from the database?