Observable.FromEventPattern<TEventArgs> Method (Action<EventHandler<TEventArgs>>, Action<EventHandler<TEventArgs>>)
Converts a .NET event, conforming to the standard .NET event pattern, to an observable sequence with the specified add handler and remove handler.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
Public Shared Function FromEventPattern(Of TEventArgs As EventArgs) ( _
addHandler As Action(Of EventHandler(Of TEventArgs)), _
removeHandler As Action(Of EventHandler(Of TEventArgs)) _
) As IObservable(Of EventPattern(Of TEventArgs))
'Usage
Dim addHandler As Action(Of EventHandler(Of TEventArgs))
Dim removeHandler As Action(Of EventHandler(Of TEventArgs))
Dim returnValue As IObservable(Of EventPattern(Of TEventArgs))
returnValue = Observable.FromEventPattern(addHandler, _
removeHandler)
public static IObservable<EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(
Action<EventHandler<TEventArgs>> addHandler,
Action<EventHandler<TEventArgs>> removeHandler
)
where TEventArgs : EventArgs
public:
generic<typename TEventArgs>
where TEventArgs : EventArgs
static IObservable<EventPattern<TEventArgs>^>^ FromEventPattern(
Action<EventHandler<TEventArgs>^>^ addHandler,
Action<EventHandler<TEventArgs>^>^ removeHandler
)
static member FromEventPattern :
addHandler:Action<EventHandler<'TEventArgs>> *
removeHandler:Action<EventHandler<'TEventArgs>> -> IObservable<EventPattern<'TEventArgs>> when 'TEventArgs : EventArgs
JScript does not support generic types and methods.
Type Parameters
- TEventArgs
The type of event.
Parameters
- addHandler
Type: System.Action<EventHandler<TEventArgs>>
The action that attaches the given event handler to the underlying .NET event.
- removeHandler
Type: System.Action<EventHandler<TEventArgs>>
The action that detaches the given event handler from the underlying .NET event.
Return Value
Type: System.IObservable<EventPattern<TEventArgs>>
The observable sequence that contains data representations of invocations of the underlying .NET event.