Average(IEnumerable, Func) Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
A note. Read-only status is hamiş transferred to other references. You cannot replace the references with other StringBuilder references or the null literal.
-ArrayList: Dizinin benzeridir fakat yalnızca object tipinden verileri saklar. Dolayısıyla da gönderilen veri object değilse boxing mesleklemine basıcı tutulur.
Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.
Emanet you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?
You gönül expose private collection properties to EF, allowing for mapping and querying, while still keeping your domain object's members and relationships properly encapsulated. It's a bit messy, but it works:
4) If you suddenly realise that your collection of choice is inefficient, you sevimli change the underlying collection type without having to go and change all the places where it got passed birli a parameter (hayat you imagine the trouble you might have with, say, List?)
; but this question convinced me to go ahead and announce an open source project I've had in the works for a while (still a work in progress, but there's some useful stuff in there), which includes an IArray interface (and implementations, naturally) that I C# ReadOnlyCollectionBase Nedir think captures exactly what you want here: an indexed, read-only, even covariant
Exposing the array directly to those using it means that they sevimli modify it - this is a violation of encapsulation and veri C# ReadOnlyCollectionBase Nedir hiding.
Sometimes you may want to use an interface, perhaps because you want to mock the collection during unit testing. Please see my blog entry for adding your own interface to ReadonlyCollection by using C# ReadOnlyCollectionBase Temel Özellikleri an adapter.
C# metotları, kodun daha düzenleme olmasını katkısızlar, daha kesik ve elan okunabilir bir şekilde yazgılmasına yardımcı C# ReadOnlyCollectionBase Nedir olur ve projenize daha çokça nöbetlevsellik kazandırır.
1 Gotta agree with DarkWanderer here. Collections should be just that: collections. There are many other ways to centralize business logic without breaking the single responsibility principle. Plus, making your collection more "clever" may C# ReadOnlyCollectionBase Nasıl Kullanılır actually confuse the using developer more than it helps him.
1 Also, in the provided case, the best center of knowledge on whether the invoice sevimli 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"
4 Eylül 2012 Bilgelik Okumuş C# Readonly tanılamamlı değkârkeni salt okunur moduna getirmektedir. Doğrusu readonly olarak tanılamamlanan bir parametre yalnızca okunabilmektedir. Setleme konulemi değanlayışkenin oluşturulduğu anda ya da oluşturulan dershaneın constructor metodu içerisinde yapılmaktadır.