What is IDictionaryEnumerator?
The IDictionaryEnumerator enumerates the elements of a non-generic dictionary like a HashTable.
What is a IEnumerator C#?
IEnumerable in C# is an interface that defines one method, GetEnumerator which returns an IEnumerator interface. This allows readonly access to a collection then a collection that implements IEnumerable can be used with a for-each statement.
Which of the following are members of IEnumerator?
Reset(), MoveNext(), Current() The signature of IEnumerator members is as follows: void Reset() bool MoveNext() object Current.
How do Ienumerators work C#?
When you iterate through a collection or access a large file, waiting for the whole action would stop all others, IEnumerator allows to stop the process at a specific moment, return that part of object (or nothing) and gets back to that point whenever you need it.
What is difference between IEnumerable and IEnumerator in C #?
Main Differences Between IEnumerable and IEnumerator IEnumerable is used for generic interface, but IEnumerator is used for the non-generic interface. IEnumerable has only one method, whereas IEnumerator has only two methods. IEnumerable can return IEnumerator, but IEnumerator cannot return IEnumerable.
What is the use of IEnumerator in C#?
The IEnumerable interface actually uses IEnumerator. The main reason to create an IEnumerable is to make the syntax shorter and simpler. If you go to the definition of the IEnumerable interface, you will see this interface has a method GetEnumerator() that returns an IEnumerator object back.
What is difference between IEnumerable and IQueryable in C#?
Querying data from a database, IEnumerable execute a select query on the server side, load data in-memory on a client-side and then filter data. Querying data from a database, IQueryable execute the select query on the server side with all filters.
What is a coroutine used for?
Coroutines are computer program components that generalize subroutines for non-preemptive multitasking, by allowing execution to be suspended and resumed. Coroutines are well-suited for implementing familiar program components such as cooperative tasks, exceptions, event loops, iterators, infinite lists and pipes.
What is enumerable in C#?
In C#, an Enumerable is an object like an array, list, or any other sort of collection that implements the IEnumerable interface. Enumerables standardize looping over collections, and enables the use of LINQ query syntax, as well as other useful extension methods like List.
What is difference between IEnumerable and List in C#?
One important difference between IEnumerable and List (besides one being an interface and the other being a concrete class) is that IEnumerable is read-only and List is not. So if you need the ability to make permanent changes of any kind to your collection (add & remove), you’ll need List.