Generates a sequence by enumerating a source sequence, mapping its elements on result sequences, and concatenating those sequences.

Namespace: System.Linq
Assembly: System.Interactive (in System.Interactive.dll)

public static IEnumerable<TResult> For<TSource, TResult>(
	IEnumerable<TSource> source,
	Func<TSource, IEnumerable<TResult>> resultSelector
)

Type: System.Collections.Generic.IEnumerable<TSource>
Source sequence.

Type: System.Func<TSource, IEnumerable<TResult>>
Result selector to evaluate for each iteration over the source.

Source sequence element type.

Result sequence element type.

Type: IEnumerable<TResult>
Sequence concatenating the inner sequences that result from evaluating the result selector on elements from the source.

EnumerableEx Class
System.Linq Namespace