C# ReadOnlyCollectionBase Kullanımı A Gizli Silah

C# ReadOnlyCollectionBase Kullanımı A Gizli Silah

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You hayat argue that you may be able to downcast IPerson to Person, but at this point I would answer telling you that you need to follow your own coding conventions: if you defined that you never return Person but IPerson then I would do it this way in the entire code base, and if you need a write-capable Parents property, then you return Person instead (and you avoid a cast later!).

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

In a multithreaded environment, this is even more of an issue, birli one thread can make changes to the data while another is trying to read data - you güç easily get inconsistent data in different threads.

Objects everywhere), and it makes the construction wordier (can't use .ToList or collection initializers). And it doesn't really communicate intent either: such a list suggests you could add/remove values, or change them: but that's hamiş typical usage at all.

Creating an extension method is sufficiently different in C# that it's worth taking the time to do the translation. A C# extension method is a static method declared in a static class, and its first parameter must be declared using the "this" keyword. So the C# version of this method looks like this: public static class PhvExtensionMethods

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

Ancestors(IEnumerable) Returns a collection of elements that contains the ancestors of every node in the source collection.

Özellikle verilerin belli başlı bir sıraya bakarak anlayışlenmesi müstelzim durumlarda, Queue kullanımı yazılım projelerinin verimliliğini fazlalıkrabilir.

So easy, in fact, that I don't need a full C# ReadOnlyCollectionBase Temel Özellikleri column to do it (and if that's all you want from this column, you sevimli skip to the end where I discuss both the AsReadOnly method and using the ReadOnlyCollectionBase class). What this topic does C# ReadOnlyCollectionBase Nasıl Kullanılır 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 can exploit one of the built-in .Kupkuru interfaces; and (finally) how to simplify ugly syntax by building your C# ReadOnlyCollectionBase Nerelerde Kullanılıyor own extension methods. I also think that you don't really understand anything unless you dirilik see a way to write it yourself, and this topic lets me do that, too, by showing how you hayat create the .NET ReadOnlyCollectionBase class. So this column is bey much about providing insight into how .Safi works as it is about doing something practical. Foundation Knowledge

Movie about a planet where seeds must be harvested just right in order to liberate a valuable crystal within

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

If the collection is small then a safe and easy way to get around this sıkıntı is to return a copy instead.

For maximum flexibility, my class doesn't specify the data type of the List in which it keeps its actual veri. Instead, I declare my UnderlyingList variable to use any class that implements the IList interface. I've also made this a generic class: Rather than specify what kind of List I'm working with, I've forced my class to be instantiated with a veri type that the code refers to bey T. Wherever in my code I need to specify my List's veri type, I just use the T reference. Finally, I've chosen to have this C# ReadOnlyCollectionBase Nerelerde Kullanılıyor class implement the generic version of IEnumerable, which requires two versions of the GetEnumerator method -- but the code is identical in both versions of the method. Listing 1. The basics of the PhvReadOnlyList class.

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