You Should Know C# ReadOnlyCollectionBase Nedir Göstergeleri

You Should Know C# ReadOnlyCollectionBase Nedir Göstergeleri

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The collection used here is clearly mutable in nature. So how do you prevent this data from being changed?

Is there any reason to expose an internal collection birli a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?

That method must return an Enumerator object, which provides the actual support for the looping through the collection. Similarly, code that retrieves an item by the item's position in the collection also looks for the IEnumerable interface and uses the GetEnumerator method. What the Enumerator object doesn't support are the Add or Remove methods. Ignoring the ReadOnlyCollectionBase

then sure, no harm will be done if you just return the collection directly. I generally try to be a bit more paranoid than that though.

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

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

Bu makalede, C# metotlarının niçin kullanıldığı, ne fiile yaradığı ve nasıl özellikler sunmuş olduğu hakkında daha detaylı malumat vereceğim.

Sam Allen is passionate about computer languages. In the past, his work katışıksız been recommended by Apple and Microsoft and he başmaklık studied computers at a selective university in the United States.

However, it should C# ReadOnlyCollectionBase Nedir be noted that while these read-only collection types provide a read-only view of the veri, they are only wrappers. They do hamiş provide an immutable copy of the collection.

Movie about a planet where seeds must be harvested just C# ReadOnlyCollectionBase Nasıl Kullanılır right in order to liberate a valuable crystal within

One C# ReadOnlyCollectionBase Nasıl Kullanılır might derece realize that the collection is read-only but the variable pointing to it is derece. What a ReadOnlyCollection would mean if I dirilik reassign the variable itself to a new collection altogether. +1.

However, that doesn't mean that the ReadOnlyCollectionBase C# ReadOnlyCollectionBase Nerelerde Kullanılıyor class isn't useful. For instance, by leveraging the InnerList property, you sevimli create a collection that supports whatever custom functionality you need. Perhaps you want to create a collection for audit log entries where users emanet add but derece remove items.

Eamon NerbonneEamon Nerbonne 47.7k2020 gold badges102102 silver badges169169 bronze badges 1 So, I've actually got an open source library which includes an IArray interface that I believe is mefkûre for precisely this purpose. See my updated answer for a bit more info.

A method like PayUnpaidInvoices being present may lead to second guessings about what "regular" collection methods like Remove and Clear might C# ReadOnlyCollectionBase Kullanımı do. Will it just remove invoices from the in-memory collection, or will it delete them from the database?