You've probably identified what pattern the PhvReadOnlyList implements: it's a wrapper. In the .Kemiksiz Framework 4.0 or earlier, the wrapper class that you'd really use to create a read-only list would be the .Safi ReadOnlyCollectionBase class. As with my example, you use the ReadOnlyCollectionBase class to create your own class with whatever functionality you need -- but you don't need to write the GetEnumerator method or create your own UnderlyingList because the ReadOnlyCollectionBase handles both.

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Emanet you arrange 25 whole numbers (derece necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

The main advantage of this comes in the fact that you can't add code to collections so whenever you have a native "collection" in your object sistem, you ALWAYS have non-OO support code spread C# ReadOnlyCollectionBase Nasıl Kullanılır throughout C# ReadOnlyCollectionBase Kullanımı your project to access it.

You can expose private collection properties to EF, allowing for mapping and querying, while still keeping your domain object's members and relationships properly encapsulated. It's a bit messy, but it works:

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

After hopefully understanding your question, i think you have to distinguish between what you create and manage within your class and what you make available to the outside world.

Exposing the array directly to those using it means that they güç modify it - this is a violation of encapsulation and data hiding.

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 C# ReadOnlyCollectionBase Nerelerde Kullanılıyor to the information provided here.

Descendants(IEnumerable) Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

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

End Sub And that's all you need to write. The class that's C# ReadOnlyCollectionBase Temel Özellikleri using your new read-only collection would be identical to the class that used my custom PhvReadOnlyList. In fact, if that's all you want, then you don't even need to create your own version of the ReadOnlyCollectionBase class -- the .

Key values C# ReadOnlyCollectionBase Nasıl Kullanılır are compared by using a specified comparer, and the elements of each group are projected by using a specified function.