Observable.FromEvent Method (Action<Action>, Action<Action>)
Converts a .NET event to an observable sequence.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
Public Shared Function FromEvent ( _
addHandler As Action(Of Action), _
removeHandler As Action(Of Action) _
) As IObservable(Of Unit)
'Usage
Dim addHandler As Action(Of Action)
Dim removeHandler As Action(Of Action)
Dim returnValue As IObservable(Of Unit)
returnValue = Observable.FromEvent(addHandler, _
removeHandler)
public static IObservable<Unit> FromEvent(
Action<Action> addHandler,
Action<Action> removeHandler
)
public:
static IObservable<Unit>^ FromEvent(
Action<Action^>^ addHandler,
Action<Action^>^ removeHandler
)
static member FromEvent :
addHandler:Action<Action> *
removeHandler:Action<Action> -> IObservable<Unit>
public static function FromEvent(
addHandler : Action<Action>,
removeHandler : Action<Action>
) : IObservable<Unit>
Parameters
- addHandler
Type: System.Action<Action>
Action that attaches the given event handler to the underlying .NET event.
- removeHandler
Type: System.Action<Action>
Action that detaches the given event handler from the underlying .NET event.
Return Value
Type: System.IObservable<Unit>
Observable sequence that contains data representations of invocations of the underlying .NET event.