What does the interface IEnumerable do in C#?

CsharpProgrammingServer Side Programming

IEnumerable is an interface defining a single method GetEnumerator() that returns an IEnumerator interface. It is the base interface for all non-generic collections that can be enumerated.

This works for read-only access to a collection that implements that IEnumerable can be used with a foreach statement.

It has a single method −

  • GetEnumerator() − This method returns an enumerator that iterates through a collection.

The following is the implementation of the GetEnumerator() method of the IEnumerable interface in C# −

IEnumerator IEnumerable.GetEnumerator() {
return (IEnumerator) GetEnumerator();
}

The following are the extension methods of the IEnumerable interface in C# −

Sr.NoMethod Name & Description
1AsParallel()
Enables parallelization of a query
2AsQueryable()
The method converts an IEnumerable to an IQueryable.
3Cast<TResult>()
The method casts the elements of an IEnumerable to the specified type
4OfType<TResult>()
Filters the elements of an IEnumerable based on a specified type.
raja
Published on 09-Aug-2018 07:10:18
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