Observable.Concat(Of TSource) Method (IObservable(Of IObservable(Of TSource)))

Concatenates an observable sequence of observable sequences.

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

<ExtensionAttribute> _
Public Shared Function Concat(Of TSource) ( _
	sources As IObservable(Of IObservable(Of TSource)) _
) As IObservable(Of TSource)
Dim sources As IObservable(Of IObservable(Of TSource))
Dim returnValue As IObservable(Of TSource)

returnValue = sources.Concat()

Type Parameters


The type of source.


Type: System.IObservable(Of IObservable(Of TSource))
The observable sequence of inner observable sequences.

Return Value

Type: System.IObservable(Of TSource)
An observable sequence that contains the elements of each observed inner sequence, in sequential order.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable(Of IObservable(Of 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.