Qbservable.Multicast<TSource, TIntermediate, TResult> Method
Returns a queryable 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.Providers (in System.Reactive.Providers.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Multicast(Of TSource, TIntermediate, TResult) ( _
source As IQbservable(Of TSource), _
subjectSelector As Expression(Of Func(Of ISubject(Of TSource, TIntermediate))), _
selector As Expression(Of Func(Of IObservable(Of TIntermediate), IObservable(Of TResult))) _
) As IQbservable(Of TResult)
'Usage
Dim source As IQbservable(Of TSource)
Dim subjectSelector As Expression(Of Func(Of ISubject(Of TSource, TIntermediate)))
Dim selector As Expression(Of Func(Of IObservable(Of TIntermediate), IObservable(Of TResult)))
Dim returnValue As IQbservable(Of TResult)
returnValue = source.Multicast(subjectSelector, _
selector)
public static IQbservable<TResult> Multicast<TSource, TIntermediate, TResult>(
this IQbservable<TSource> source,
Expression<Func<ISubject<TSource, TIntermediate>>> subjectSelector,
Expression<Func<IObservable<TIntermediate>, IObservable<TResult>>> selector
)
[ExtensionAttribute]
public:
generic<typename TSource, typename TIntermediate, typename TResult>
static IQbservable<TResult>^ Multicast(
IQbservable<TSource>^ source,
Expression<Func<ISubject<TSource, TIntermediate>^>^>^ subjectSelector,
Expression<Func<IObservable<TIntermediate>^, IObservable<TResult>^>^>^ selector
)
static member Multicast :
source:IQbservable<'TSource> *
subjectSelector:Expression<Func<ISubject<'TSource, 'TIntermediate>>> *
selector:Expression<Func<IObservable<'TIntermediate>, IObservable<'TResult>>> -> IQbservable<'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.Reactive.Linq.IQbservable<TSource>
The source sequence which will be multicast in the specified selector function.
- subjectSelector
Type: System.Linq.Expressions.Expression<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.Linq.Expressions.Expression<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.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 or .