Observable.Multicast<TSource, TIntermediate, TResult> Method (IObservable<TSource>, Func<ISubject<TSource, TIntermediate>>, Func<IObservable<TIntermediate>, IObservable<TResult>>)

Returns an observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Multicast(Of TSource, TIntermediate, TResult) ( _
    source As IObservable(Of TSource), _
    subjectSelector As Func(Of ISubject(Of TSource, TIntermediate)), _
    selector As Func(Of IObservable(Of TIntermediate), IObservable(Of TResult)) _
) As IObservable(Of TResult)

'Usage
Dim source As IObservable(Of TSource)
Dim subjectSelector As Func(Of ISubject(Of TSource, TIntermediate))
Dim selector As Func(Of IObservable(Of TIntermediate), IObservable(Of TResult))
Dim returnValue As IObservable(Of TResult)

returnValue = source.Multicast(subjectSelector, _
    selector)

public static IObservable<TResult> Multicast<TSource, TIntermediate, TResult>(
    this IObservable<TSource> source,
    Func<ISubject<TSource, TIntermediate>> subjectSelector,
    Func<IObservable<TIntermediate>, IObservable<TResult>> selector
)

[ExtensionAttribute]
public:
generic<typename TSource, typename TIntermediate, typename TResult>
static IObservable<TResult>^ Multicast(
    IObservable<TSource>^ source, 
    Func<ISubject<TSource, TIntermediate>^>^ subjectSelector, 
    Func<IObservable<TIntermediate>^, IObservable<TResult>^>^ selector
)

static member Multicast : 
        source:IObservable<'TSource> * 
        subjectSelector:Func<ISubject<'TSource, 'TIntermediate>> * 
        selector:Func<IObservable<'TIntermediate>, IObservable<'TResult>> -> IObservable<'TResult> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source.

• TIntermediate
  The type of intermediate.

• TResult
  The type of result.

Parameters

• source
  Type: System.IObservable<TSource>
  The source sequence which will be multicast in the specified selector function.

• subjectSelector
  Type: System.Func<ISubject<TSource, TIntermediate>>
  The factory function to create an intermediate subject through which the source sequence’s elements will be multicast to the selector function.

• selector
  Type: System.Func<IObservable<TIntermediate>, IObservable<TResult>>
  The selector function which can use the multicasted source sequence subject to the policies enforced by the created subject.

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

Multicast Overload

System.Reactive.Linq Namespace