Método Observable.FromAsyncPattern (Func<AsyncCallback, Object, IAsyncResult>, Action<IAsyncResult>)

Converte um par de funções de invocação Begin/End em uma função assíncrona.

Namespace:System.Reactive.Linq
Assembly: System.Reactive (em System.Reactive.dll)

Sintaxe

'Declaration
Public Shared Function FromAsyncPattern ( _
    begin As Func(Of AsyncCallback, Object, IAsyncResult), _
    end As Action(Of IAsyncResult) _
) As Func(Of IObservable(Of Unit))

'Usage
Dim begin As Func(Of AsyncCallback, Object, IAsyncResult)
Dim end As Action(Of IAsyncResult)
Dim returnValue As Func(Of IObservable(Of Unit))

returnValue = Observable.FromAsyncPattern(begin, _
    end)

public static Func<IObservable<Unit>> FromAsyncPattern(
    Func<AsyncCallback, Object, IAsyncResult> begin,
    Action<IAsyncResult> end
)

public:
static Func<IObservable<Unit>^>^ FromAsyncPattern(
    Func<AsyncCallback^, Object^, IAsyncResult^>^ begin, 
    Action<IAsyncResult^>^ end
)

static member FromAsyncPattern : 
        begin:Func<AsyncCallback, Object, IAsyncResult> * 
        end:Action<IAsyncResult> -> Func<IObservable<Unit>> 

public static function FromAsyncPattern(
    begin : Func<AsyncCallback, Object, IAsyncResult>, 
    end : Action<IAsyncResult>
) : Func<IObservable<Unit>>

Parâmetros

• começar
  Tipo: System.Func<AsyncCallback, Object, IAsyncResult>
  A função begin invoke.

• end
  Tipo: System.Action<IAsyncResult>
  A função de invocação final.

Valor Retornado

Tipo:UnidadeIObservável<System.Func<>>
Um par de funções begin/end invoke.

Consulte Também

Referência

Classe observável

Sobrecarga de FromAsyncPattern

System.Reactive.Linq Namespace