Benim C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Başlarken Çalışmak

Benim C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Başlarken Çalışmak

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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 data in a class that itself implements IEnumerable -- a List, for instance. If you do keep your veri in a List, then you kişi use the List GetEnumerator method to retrieve an Enumerator object, which you sevimli then return to the program using your class. Listing 1 katışıksız the basics of this class (I've called it PhvReadOnlyList).

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Kemiksiz 4.5, you may want to try the new read-only collection interfaces. You'll still want to wrap the returned collection in a ReadOnlyCollection if you're paranoid, but now you're hamiş tied to a specific implementation.

The How to Fix Violations suggest i clone the object (which i don't want to do) or 'Replace the array with a strongly typed collection that cannot be changed'. I clicked the link and see 'ArrayList' and adding each element one by one and it doesn't look like you kişi prevent something adding more.

Sum(IEnumerable, Func) Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

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

public IEnumerable Employees => EmployeesInternal.Skip(0); // this is property accessor that will be used to define benzer and/or in `Include` C# ReadOnlyCollectionBase Nerelerde Kullanılıyor statements, could be marked birli internal if your domain/persistance/services are in the same assembly

An immutable object is defined as an object that cannot be changed after it özgü been created. Hamiş all collections are immutable, but you sevimli use the read-only collection types in .

collection. C# ReadOnlyCollectionBase Kullanımı Sometimes I use an array internally and return an IEnumerable to indicate intent. But most of these approaches have a very low signal-to-noise ratio; and that's absolutely C# ReadOnlyCollectionBase Nedir critical to understanding code.

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Single(IEnumerable) Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

In the “Configure your new project” window shown next, specify C# ReadOnlyCollectionBase Nasıl Kullanılır the name and location for the new project.

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