Qbservable::Replay<TSource, TResult> Method (IQbservable<TSource>, Expression<Func<IObservable<TSource>, IObservable<TResult>>>, Int32, IScheduler)

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

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

generic<typename TSource, typename TResult>
static IQbservable<TResult>^ Replay(
	IQbservable<TSource>^ source, 
	Expression<Func<IObservable<TSource>^, IObservable<TResult>^>^>^ selector, 
	int bufferSize, 
	IScheduler^ scheduler

Type Parameters


The type of source.


The type of result.


Type: System.Reactive.Linq::IQbservable<TSource>
The source sequence whose elements will be multicasting through a single shared subscription.
Type: System.Linq.Expressions::Expression<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.
Type: System::Int32
The maximum element count of the replay buffer.
Type: System.Reactive.Concurrency::IScheduler
The scheduler where connected observers within the selector function will be invoked on.

Return Value

Type: System.Reactive.Linq::IQbservable<TResult>
A queryable 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 IQbservable<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.