Observable.StartWith<TSource> Method (IObservable<TSource>, IScheduler, TSource[])
Prepends a sequence of values to an observable sequence with the specified source, scheduler and values.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function StartWith(Of TSource) ( _
source As IObservable(Of TSource), _
scheduler As IScheduler, _
ParamArray values As TSource() _
) As IObservable(Of TSource)
'Usage
Dim source As IObservable(Of TSource)
Dim scheduler As IScheduler
Dim values As TSource()
Dim returnValue As IObservable(Of TSource)
returnValue = source.StartWith(scheduler, _
values)
public static IObservable<TSource> StartWith<TSource>(
this IObservable<TSource> source,
IScheduler scheduler,
params TSource[] values
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IObservable<TSource>^ StartWith(
IObservable<TSource>^ source,
IScheduler^ scheduler,
... array<TSource>^ values
)
static member StartWith :
source:IObservable<'TSource> *
scheduler:IScheduler *
values:'TSource[] -> IObservable<'TSource>
JScript does not support generic types and methods.
Type Parameters
- TSource
The type of source.
Parameters
- source
Type: System.IObservable<TSource>
The source sequence to prepend values to.
- scheduler
Type: System.Reactive.Concurrency.IScheduler
The scheduler to emit the prepended values on.
- values
Type: TSource[]
The values to prepend to the specified sequence.
Return Value
Type: System.IObservable<TSource>
The source sequence prepended with the specified values.
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 .