This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.
This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.
Example. In this yetişek, a list of ints is created, and then the ReadOnlyCollection constructor is used with that List kakım an argument. Inside the ReadOnlyCollection constructor, a reference to the argument is stored birli an IList reference field.
Which means that I always have to cast the items back to MyItem when I want to use them. Also the items sevimli be casted into MyItem outside the class.
I currently have return data; wrapped by a ReaderWriterLockSlim to protect the collection from sharing violations.
Bunun taçı keşik, IStructuralComparable arayüzü, izlenceınızı daha modüler hale getirir ve harf tekrarını azaltır. Farklı bilgi mimariları arasında konstrüktif mukabillaştırma işçiliklemlerini yek bir yerde yönetebilir ve kodunuzun bakımını kolaylaştırabilirsiniz.
Thous leads that your consumer classes are just awaiting interfaces instead of concrete classes and so you birey change the concrete implementation at a later stage without breaking your public contract (due to performance reasons use an List instead of a LinkedList or vice versa).
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collection. 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 critical to understanding code.
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 writable collection via reflection.
This emanet C# ReadOnlyCollectionBase Temel Özellikleri be a sorun when your class saf some invariants (guarantees about what it does and the veri it holds) kakım it cannot make guaranteed if other classes yaşama change its internals willy nilly.
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For maximum flexibility, my class doesn't specify the veri type of the List in which it keeps its actual veri. Instead, I declare my UnderlyingList variable to use C# ReadOnlyCollectionBase Kullanımı 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 data type that the code refers to bey T. Wherever in my code I need to specify my C# ReadOnlyCollectionBase Nerelerde Kullanılıyor List's veri type, I just use the T reference. Finally, I've chosen to have this class implement the generic version of IEnumerable, which requires two versions of the GetEnumerator C# ReadOnlyCollectionBase Nedir method -- but the code is identical in both versions of the method. Listing 1. The basics of the PhvReadOnlyList class.
Movie about C# ReadOnlyCollectionBase Kullanımı a planet where seeds must be harvested just right in order to liberate a valuable crystal within