Метод Observable.FromAsyncPattern<T1, T2, T3, T4, TResult> (Func<T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult>, Func<IAsyncResult, TResult>)
Преобразует пару вызываемой функции Begin/End в асинхронную функцию.
Пространство имен:System.Reactive.Linq
Сборки: System.Reactive (в System.Reactive.dll)
Синтаксис
'Declaration
Public Shared Function FromAsyncPattern(Of T1, T2, T3, T4, TResult) ( _
begin As Func(Of T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult), _
end As Func(Of IAsyncResult, TResult) _
) As Func(Of T1, T2, T3, T4, IObservable(Of TResult))
'Usage
Dim begin As Func(Of T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult)
Dim end As Func(Of IAsyncResult, TResult)
Dim returnValue As Func(Of T1, T2, T3, T4, IObservable(Of TResult))
returnValue = Observable.FromAsyncPattern(begin, _
end)
public static Func<T1, T2, T3, T4, IObservable<TResult>> FromAsyncPattern<T1, T2, T3, T4, TResult>(
Func<T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult> begin,
Func<IAsyncResult, TResult> end
)
public:
generic<typename T1, typename T2, typename T3, typename T4, typename TResult>
static Func<T1, T2, T3, T4, IObservable<TResult>^>^ FromAsyncPattern(
Func<T1, T2, T3, T4, AsyncCallback^, Object^, IAsyncResult^>^ begin,
Func<IAsyncResult^, TResult>^ end
)
static member FromAsyncPattern :
begin:Func<'T1, 'T2, 'T3, 'T4, AsyncCallback, Object, IAsyncResult> *
end:Func<IAsyncResult, 'TResult> -> Func<'T1, 'T2, 'T3, 'T4, IObservable<'TResult>>
JScript does not support generic types and methods.
Параметры типа
- T1
Первый тип функции.
- T2
Второй тип функции.
- T3
Третий тип функции.
- T4
Четвертый тип функции.
- TResult
Тип результата.
Параметры
- begin
Тип: System.Func<T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult>
Функция begin invoke.
- end
Тип: System.Func<IAsyncResult, TResult>
Функция end invoke.
Возвращаемое значение
Тип: System.Func<T1, T2, T3, T4, IObservable<TResult>>
Пара функций Begin/End invoke.