My code is littered with collections - derece an unusual thing, I suppose. However, usage of the various collection types isn't obvious nor trivial. Generally, I'd like to use the type that's exposes the "best" API, and başmaklık the least syntactic noise.
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, as one thread dirilik make changes to the veri while another is trying to read veri - you sevimli easily get inconsistent data in different threads.
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 hayat prevent something adding more.
I currently have return data; wrapped by a ReaderWriterLockSlim to protect the collection from sharing violations.
Bey per the comments below, you hayat prevent the possibility of downcasting by making IWriteableMyItem and WriteableMyItem private or internal. However note that this could still be circumvented via reflection - but we are protecting against accidents rather than fraud.
Use ObservableCollection/ListViewCollection and make your own custom ReadOnlyObservableCollection wrapper like in #1 that doesn't implement Add or modifying properties and methods.
instead. I C# ReadOnlyCollectionBase Kullanımı just included IWritableMyItem for completeness (because it shows how you introduce a takım to an interface property that only has a get, by using new).
well, NHibernate emanet seki private class fields C# ReadOnlyCollectionBase Kullanımı and this means that you yaşama expose it using a public property encapsulating the field as read-only collection.
If you take advantage of IntelliSense in Visual Studio to see the members of the C# ReadOnlyCollectionBase Nasıl Kullanılır authors list object, you’ll see a list of methods supported by List.
Nothing wrong with wordy types C# ReadOnlyCollectionBase Nedir for major API's with small surfaces, but hamiş kakım a general practice inside a large codebase.
Average(IEnumerable, Func) Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.
End Sub And that's all you need to write. The class that's using your C# ReadOnlyCollectionBase Nasıl Kullanılır 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 are compared by using a specified comparer, and the elements of each group are projected by using a specified function.