Observable.Then<TSource, TResult> Method
Matches when the observable sequence has an available value and projects the value.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Then(Of TSource, TResult) ( _
source As IObservable(Of TSource), _
selector As Func(Of TSource, TResult) _
) As Plan(Of TResult)
'Usage
Dim source As IObservable(Of TSource)
Dim selector As Func(Of TSource, TResult)
Dim returnValue As Plan(Of TResult)
returnValue = source.Then(selector)
public static Plan<TResult> Then<TSource, TResult>(
this IObservable<TSource> source,
Func<TSource, TResult> selector
)
[ExtensionAttribute]
public:
generic<typename TSource, typename TResult>
static Plan<TResult>^ Then(
IObservable<TSource>^ source,
Func<TSource, TResult>^ selector
)
static member Then :
source:IObservable<'TSource> *
selector:Func<'TSource, 'TResult> -> Plan<'TResult>
JScript does not support generic types and methods.
Type Parameters
- TSource
The type of source.
- TResult
The type of result.
Parameters
- source
Type: System.IObservable<TSource>
The observable source sequence.
- selector
Type: System.Func<TSource, TResult>
A transform function to apply to each source element.
Return Value
Type: System.Reactive.Joins.Plan<TResult>
The observable sequence has an available value and projects the value.
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 .