Metodo Observable.FromEvent<TDelegate, TEventArgs> (Func<EventHandler<TEventArgs>, TDelegate>, Action<TDelegate>, Action<TDelegate>)

Spazio dei nomi:  Microsoft.Phone.Reactive
Assembly:  Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)

Sintassi

'Dichiarazione
Public Shared Function FromEvent(Of TDelegate, TEventArgs As EventArgs) ( _
    conversion As Func(Of EventHandler(Of TEventArgs), TDelegate), _
    addHandler As Action(Of TDelegate), _
    removeHandler As Action(Of TDelegate) _
) As IObservable(Of IEvent(Of TEventArgs))

public static IObservable<IEvent<TEventArgs>> FromEvent<TDelegate, TEventArgs>(
    Func<EventHandler<TEventArgs>, TDelegate> conversion,
    Action<TDelegate> addHandler,
    Action<TDelegate> removeHandler
)
where TEventArgs : EventArgs

public:
generic<typename TDelegate, typename TEventArgs>
where TEventArgs : EventArgs
static IObservable<IEvent<TEventArgs>^>^ FromEvent(
    Func<EventHandler<TEventArgs>^, TDelegate>^ conversion, 
    Action<TDelegate>^ addHandler, 
    Action<TDelegate>^ removeHandler
)

static member FromEvent : 
        conversion:Func<EventHandler<'TEventArgs>, 'TDelegate> * 
        addHandler:Action<'TDelegate> * 
        removeHandler:Action<'TDelegate> -> IObservable<IEvent<'TEventArgs>>  when 'TEventArgs : EventArgs

Parametri di tipo

• TDelegate

• TEventArgs

Parametri

• conversion
  Tipo: System.Func<EventHandler<TEventArgs>, TDelegate>

• addHandler
  Tipo: System.Action<TDelegate>

• removeHandler
  Tipo: System.Action<TDelegate>

Valore restituito

Tipo: System.IObservable<IEvent<TEventArgs>>

Informazioni sulla versione

.NET per applicazioni Windows Phone

Supportato in: Windows Phone 8, Silverlight 8.1

Sicurezza di .NET Framework

• Attendibilità totale per il chiamante immediato. Impossibile utilizzare questo membro in codice parzialmente attendibile. Per ulteriori informazioni, vedere Utilizzo di librerie da codice parzialmente attendibile.

Vedere anche

Riferimenti

Observable Classe

Overload FromEvent

Spazio dei nomi Microsoft.Phone.Reactive