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Observable.Replay<TSource, TResult> Method (IObservable<TSource>, Func<IObservable<TSource>, IObservable<TResult>>, Int32, IScheduler)

Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence replaying bufferSize notifications.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Replay(Of TSource, TResult) ( _
    source As IObservable(Of TSource), _
    selector As Func(Of IObservable(Of TSource), IObservable(Of TResult)), _
    bufferSize As Integer, _
    scheduler As IScheduler _
) As IObservable(Of TResult)
'Usage
Dim source As IObservable(Of TSource)
Dim selector As Func(Of IObservable(Of TSource), IObservable(Of TResult))
Dim bufferSize As Integer
Dim scheduler As IScheduler
Dim returnValue As IObservable(Of TResult)

returnValue = source.Replay(selector, _
    bufferSize, scheduler)
public static IObservable<TResult> Replay<TSource, TResult>(
    this IObservable<TSource> source,
    Func<IObservable<TSource>, IObservable<TResult>> selector,
    int bufferSize,
    IScheduler scheduler
)
[ExtensionAttribute]
public:
generic<typename TSource, typename TResult>
static IObservable<TResult>^ Replay(
    IObservable<TSource>^ source, 
    Func<IObservable<TSource>^, IObservable<TResult>^>^ selector, 
    int bufferSize, 
    IScheduler^ scheduler
)
static member Replay : 
        source:IObservable<'TSource> * 
        selector:Func<IObservable<'TSource>, IObservable<'TResult>> * 
        bufferSize:int * 
        scheduler:IScheduler -> IObservable<'TResult> 
JScript does not support generic types and methods.

Type Parameters

  • TSource
    The type of source.
  • TResult
    The type of result.

Parameters

  • source
    Type: System.IObservable<TSource>
    The source sequence whose elements will be multicasting through a single shared subscription.
  • selector
    Type: System.Func<IObservable<TSource>, IObservable<TResult>>
    The selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence.
  • bufferSize
    Type: System.Int32
    The maximum element count of the replay buffer.

Return Value

Type: System.IObservable<TResult>
An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.

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

Reference

Observable Class

Replay Overload

System.Reactive.Linq Namespace