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Observable.Replay<TSource> Method (IObservable<TSource>, Int32, TimeSpan)

Returns a connectable observable sequence that shares a single subscription to the underlying sequence replaying bufferSize notifications within window.

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


<ExtensionAttribute> _
Public Shared Function Replay(Of TSource) ( _
    source As IObservable(Of TSource), _
    bufferSize As Integer, _
    window As TimeSpan _
) As IConnectableObservable(Of TSource)
Dim source As IObservable(Of TSource)
Dim bufferSize As Integer
Dim window As TimeSpan
Dim returnValue As IConnectableObservable(Of TSource)

returnValue = source.Replay(bufferSize, _
public static IConnectableObservable<TSource> Replay<TSource>(
    this IObservable<TSource> source,
    int bufferSize,
    TimeSpan window
generic<typename TSource>
static IConnectableObservable<TSource>^ Replay(
    IObservable<TSource>^ source, 
    int bufferSize, 
    TimeSpan window
static member Replay : 
        source:IObservable<'TSource> * 
        bufferSize:int * 
        window:TimeSpan -> IConnectableObservable<'TSource> 
JScript does not support generic types and methods.

Type Parameters

  • TSource
    The type of source.


  • source
    Type: System.IObservable<TSource>
    The source sequence whose elements will be multicasted through a single shared subscription.
  • bufferSize
    Type: System.Int32
    The maximum element count of the replay buffer.
  • window
    Type: System.TimeSpan
    The maximum time length of the replay buffer.

Return Value

Type: System.Reactive.Subjects.IConnectableObservable<TSource>
A connectable observable sequence that shares a single subscription to the underlying sequence.

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 .

See Also


Observable Class

Replay Overload

System.Reactive.Linq Namespace