Observable.MostRecent<TSource> Method
Samples the most recent value in an observable sequence.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function MostRecent(Of TSource) ( _
source As IObservable(Of TSource), _
initialValue As TSource _
) As IEnumerable(Of TSource)
'Usage
Dim source As IObservable(Of TSource)
Dim initialValue As TSource
Dim returnValue As IEnumerable(Of TSource)
returnValue = source.MostRecent(initialValue)
public static IEnumerable<TSource> MostRecent<TSource>(
this IObservable<TSource> source,
TSource initialValue
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IEnumerable<TSource>^ MostRecent(
IObservable<TSource>^ source,
TSource initialValue
)
static member MostRecent :
source:IObservable<'TSource> *
initialValue:'TSource -> IEnumerable<'TSource>
JScript does not support generic types and methods.
Type Parameters
- TSource
The type of source.
Parameters
- source
Type: System.IObservable<TSource>
The source observable sequence.
- initialValue
Type: TSource
The initial value that will be yielded by the enumerable sequence if no element has been sampled yet.
Return Value
Type: System.Collections.Generic.IEnumerable<TSource>
The enumerable sequence that returns the last sampled element upon each iteration.
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 .