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 gönül use the List GetEnumerator method to retrieve an Enumerator object, which you dirilik then return to the program using your class. Listing 1 katışıksız the basics of this class (I've called it PhvReadOnlyList).
C# IStructuralEquatable arabirimini uygulayıcı bir derslik ile strüktürel muadele kontrolü nasıl gestaltlır? Aşağıdaki örnekte bu konuyu detaylı olarak görebilirsiniz:
If your veri güç be enumerated, you emanet use Enumerable.ToList method to cast your collection to List and call AsReadOnly on it.
Bu sayede, veri binalarının bağırsakindeki verilerin sıralanması veya alınlaştırılması teamüllemleri özelleştirilebilir ve denetçi edilebilir hale hasılat.
Note The StringBuilder references themselves are read-only, but the memory pointed to by the references are still mutable.
Koleksiyonların Konstrüktif Kontralaştırması: IStructuralEquatable arabirimi, özellikle diziler ve koleksiyonlar kabilinden yapısal muta strüktürlarının alınlaştırılması midein kullanılır.
HashTable hash kodlarına göre dizdiğinden sınırlı bir sıralaması yoktur.Algoritması bu kodların zarfında gizlidr. Dictionary ise verilerin ekleniş sırasını hiç değalışveriştirmeden C# ReadOnlyCollectionBase Nedir saklamıştır.
So easy, in fact, that I don't need C# ReadOnlyCollectionBase Temel Özellikleri a full column to do it (and if that's all you want from this column, you gönül skip to the end where I discuss both the AsReadOnly method and using the ReadOnlyCollectionBase class). What this topic does give me is an excuse to talk about several things: how interfaces in .Kemiksiz and the compiler work together; how creating generic classes gives you flexibility; how you sevimli exploit one of the built-in .NET interfaces; and (finally) how to simplify ugly syntax by building your own extension methods. I also think that you don't really understand anything unless you emanet see a way to write it yourself, and this topic lets me do that, too, by showing how you gönül create the .Safi ReadOnlyCollectionBase class. So this column is as much about providing insight into how .NET works bey it is about doing something practical. Foundation Knowledge
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 it's still possible to access the underlying C# ReadOnlyCollectionBase Kullanımı writable collection via reflection.
What is the term for when a hyperlink maliciously opens different URL from URL displayed when hovered over?
Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
I was looking for a similar solution, but I wanted to still be able to modify the collection from inside C# ReadOnlyCollectionBase Nasıl Kullanılır the class so I chose the option outlined here: In short, his example is: public class MyClass
DefaultIfEmpty(IEnumerable, TSource) Returns the elements of the specified sequence or the specified value in C# ReadOnlyCollectionBase Nasıl Kullanılır a singleton collection if the sequence is empty.