C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

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I'm going to start by being perverse and pretending that the ReadOnlyCollectionBase class doesn't exist. If that were true and you wanted to create a read-only collection, you'd create a class that only returned an Enumerator object. A class that just implements IEnumerable is, according to my definitions, a read-only collection class. Generating that GetEnumerator object from your class isn't difficult if you keep your class veri in a class that itself implements IEnumerable -- a List, for instance. If you do keep your veri in a List, then you yaşama use the List GetEnumerator method to retrieve an Enumerator object, which you can then return to the yetişek using your class. Listing 1 özgü the basics of this class (I've called it PhvReadOnlyList).

A note. Read-only status is not transferred to other references. You cannot replace the references with other StringBuilder references or the null literal.

foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların kompozitşıklığını gizler. Bu nedenle, numaralandırıcıyı aracısız işlemek yerine kullanılması foreach önerilir.

Hayat you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all C# ReadOnlyCollectionBase Nerelerde Kullanılıyor 25 is odd?

Bu sayede, data örgülarının yürekindeki verilerin sıralanması yahut kontralaştırılması anlayışlemleri özelleştirilebilir ve yoklama edilebilir hale gelir.

Average(IEnumerable, Func) Computes the average of a sequence C# ReadOnlyCollectionBase Nerelerde Kullanılıyor of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Use ObservableCollection/ListViewCollection and make your own custom ReadOnlyObservableCollection C# ReadOnlyCollectionBase Temel Özellikleri wrapper like in #1 that doesn't implement Add C# ReadOnlyCollectionBase Kullanımı or modifying properties and methods.

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It's derece a concrete type like ReadOnlyCollection, so it doesn't tie you down to a specific implementation.

Figure 1 below displays the members of List. Note that you have a method named Add, so you dirilik easily add authors to the list of authors we’ve created in the preceding code snippet.

However, if you want to access the elements of the IEnumerable collection by index or you want to retrieve the number of elements in the collection, you should use IReadOnlyList birli shown below.

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

You yaşama loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer. CopyTo provides a way to copy the elements to an array. You must allocate the array yourself.

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