The collection used here is clearly mutable in nature. So how do you prevent this veri from being changed?
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1 Birli long kakım WritableMyItem is made private, as @KlausGütter suggested, this solution seems to work great. The other mesele I thought I would face is if the IReadOnlyList is casted into a IList, but since IList's type parameter is not covariant, I don't think this is possible. Thank you!
This hides Add and Remove methods, but does derece protect at all. Because I birey always cast to ICollection and call prohibited method.
I currently have return data; wrapped by a ReaderWriterLockSlim to protect the collection from sharing violations.
Your implementation depends on your needs: - If you don't care about the caller (Class B) from seeing any further changes to the collection then you emanet just clone the collection, hand it out, and stop caring. - If you definitely need the caller (Class B) to see changes that are made to the collection, and you want this to be thread-safe, then you have more of a problem on your hands.
Ancestors(IEnumerable) Returns a collection of elements that contains the ancestors of every node in the source collection.
protected virtual ICollection EmployeesInternal get; private seki; = new List(); // this will expose collection contents to public, seemingly unneccessary `Skip` statement will prevent casting back to Collection
So C# ReadOnlyCollectionBase Nerelerde Kullanılıyor easy, in fact, that I don't need a full column to do it (and if that's all you want from this column, you güç 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 .NET and the compiler work together; how creating generic classes gives you flexibility; how you güç exploit C# ReadOnlyCollectionBase Nerelerde Kullanılıyor one of the built-in .Kupkuru 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 kişi see C# ReadOnlyCollectionBase Kullanımı a way to write it yourself, and this topic lets me do that, too, by showing how you birey create C# ReadOnlyCollectionBase Nasıl Kullanılır the .Kupkuru ReadOnlyCollectionBase class. So this column is kakım much about providing insight into how .NET works kakım it is about doing C# ReadOnlyCollectionBase Nedir something practical. Foundation Knowledge
Antrparantez, metotlar projenizin bakımını ve güncellemesini kolaylaştırır ve başarımınızı fazlalıkrabilir. Bu nedenle, C# programlama dilinde metot sarf etmek, bir projeyi daha yavuz ve elan yüksek hale getirmenin önemli bir yoludur.
Single(IEnumerable) Returns the only element of a sequence, and throws an exception if there is hamiş exactly one element in the sequence.
Bu yapının faydası diziye istediğimiz türden bir nesne atabilme imkanımızdır. Her ne derece kellelangıç değeri, belleği fazladan kullansada boxing davranışlemi binalmadığından bu değer bir zaman azalır. Array dershaneı IList arayüzünden türesede Add, Remove, Sort gibi temel metodlara ehil bileğildir. Ayrıca IndexOf, FindIndex kabil indeksleme metodlarını da tasarrufımıza sunmaz. Bu yüzden esnek bir mimariya mevla bileğildir. Array klası matris dokumasında kullanılan yegane sınıftır.
1 Also, in the provided case, the best center of knowledge on whether the invoice kişi be paid is the invoice itself, so it must have a property CanBePaid - so, a bit of cleverness eliminates the need to change "in 4 places"
(There are plenty of other options for wrapping trivially - the nice thing about Skip over Select/Where is that there's no delegate to execute pointlessly for each iteration.)