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