,System.Func{--0,System.IObservable{--1}})}

Observable.For(IEnumerable, Func>) method¶

Defined in

Type: Observable Namespace: System.Reactive.Linq Assembly: System.Reactive.dll

Applies to

netstandard2.0

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

Summary: Concatenates the observable sequences obtained by running the resultSelector for each element in the given enumerable source.

Type parameters

Name	Description
`TSource`	The type of the elements in the enumerable source sequence.
`TResult`	The type of the elements in the observable result sequence.

Parameters

Name	Type	Description
`source`	IEnumerable	Enumerable source for which each element will be mapped onto an observable source that will be concatenated in the result sequence.
`resultSelector`	Func>	Function to select an observable source for each element in the `source`.

Returns: IObservable -- The observable sequence obtained by concatenating the sources returned by resultSelector for each element in the source.

Exceptions

Type	Condition
System.ArgumentNullException	`source` or `resultSelector` is null.