Observable.Do(TSource) Method (IObservable(TSource), IObserver(TSource))

Invokes an action for each element in the observable sequence and invokes an action upon exceptional termination of the observable sequence.

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

static member Do : 
        source:IObservable<'TSource> * 
        observer:IObserver<'TSource> -> IObservable<'TSource> 

Type Parameters


The type of source.


Type: System.IObservable(TSource)
The source sequence.
Type: System.IObserver(TSource)
The observer whose methods to invoke as part of the source sequence's observation.

Return Value

Type: System.IObservable(TSource)
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable(TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.