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)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
source As IObservable(Of TSource), _
observer As IObserver(Of TSource) _
) As IObservable(Of TSource)
'Usage
Dim source As IObservable(Of TSource)
Dim observer As IObserver(Of TSource)
Dim returnValue As IObservable(Of TSource)
returnValue = source.Do(observer)
public static IObservable<TSource> Do<TSource>(
this IObservable<TSource> source,
IObserver<TSource> observer
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IObservable<TSource>^ Do(
IObservable<TSource>^ source,
IObserver<TSource>^ observer
)
static member Do :
source:IObservable<'TSource> *
observer:IObserver<'TSource> -> IObservable<'TSource>
JScript does not support generic types and methods.
Type Parameters
- TSource
The type of source.
Parameters
- source
Type: System.IObservable<TSource>
The source sequence.
- observer
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 or .