Web12 apr. 2024 · C# : What is the difference between returning IList vs List, or IEnumerable vs List Class . I want to know which is better to returnTo Access My Live Chat Pa... WebIEnumerable, ICollection, IList and List - Which One To Use?

List vs IEnumerable vs IQueryable vs ICollection vs …

Web7 apr. 2011 · IEnumerable is an interface and classes that implement that interface will provide MoveNext (), Current and Reset (). Typically you can ignore this implementation detail, as you do when using foreach, but you can, in fact, rewrite the foreach loop using the IEnumerable operators: WebList list = new List(); return list.AsEnumerable(); This will, as said on this MSDN link change the type of the List in compile-time. This will give you the benefits also to only enumerate your collection we needed (see MSDN example for this). As far as I know List implements IEnumerable. neptune nj used cars

IEnumerable vs ICollection vs IList vs List in C#

WebThe IEnumerable interface is a covariant interface, meaning that it supports implicit conversion from a more specific type to a more general type. Since List implements IEnumerable, it can be implicitly converted to IEnumerable. The async and await keywords are part of the C# language and do not directly affect this behavior. Web15 okt. 2014 · 1. That is not how IEnumerable works. Returning an IQueryable as an IEnumerable or List will be no different WRT how many times the query is executed. The number of times the method is called, as well as whether or not the consumer iterates over the result would be the determining factor. – Ocelot20. WebClearly you understand why List can at least be returned as IEnumerable: simply because it implements that interface.. Also clearly, the 3rd example is doing something "extra" that the forth one isn't. As others have said, the 4th fails because of the lack of co-variance (or contra-, I can never remember which way they go!), because you are … itsnellife twitter